Dr. Hank Liers, PhD bone fracturesSeveral years ago a customer asked me for a program that could be helpful to those suffering with bone fractures. A relative had been diagnosed with multiple bone fractures in his ankle.

Since I have been counseling individuals regarding natural treatments for supporting those with bone fractures and injury for many years, I was able to provide a comprehensive program that could be helpful in recovery. More recently, we have introduced products and tools that can be even more supportive. Therefore, in this article we are providing an update to the bone fractures program.

Clearly, the need for such a program is great. According to the American Academy of Orthopaedic Surgeons (AAOS), about six million individuals suffer fractures each year in North America. In about 5–10 percent of cases, patients suffer either delayed healing or fractures that do not heal.

The problem of bone fractures is especially troubling for the elderly, many of whom suffer from osteoporosis, a condition in which bones become weak and break more easily. For an older person, a fracture affects quality of life because it significantly reduces function and mobility, and requires an extended period of recuperation.

The bone fracture program set forth below also works well to support the healing of other types of bone problems, including broken bones, bone surgery, osteoporosis, and wisdom tooth removal.



The first element of the program consists of Foundational Supplements. This group of supplements ensures the body is being supplied with all of the basic elements needed for optimal function. The primary foundational supplements consists of 1) a therapeutic multivitamin and mineral formula, 2) a complete buffered Vitamin C with antioxidants formula, 3) an essential fatty acids supplement, and 4) a high-RNA superfoods formula.

Our Foundational Supplements are described in great detail on the HPDI website where we provide a free downloadable e-book “The Need for Foundational Supplements” (.pdf). Suffice it to say that the foundational supplements are a essential part of the program that ensure healing will take place quickly and effectively. I encourage everyone to become familiar with this information as foundational supplements are basic to any wellness or healing program.

bone fractures


The second element of the program for healing bone fractures consists of Enhancement Formulas that strengthen the body as it relates to dealing with the damaging effects of bone fractures. These include a Vitamin D3 formula with the synergistic nutrients of Vitamin A and Vitamin K2 that are required for the rebuilding of bone as well as strengthening the body in many other ways. The HPDI Vitamin D3 Plus formula to designed to specifically address this need.

A second Enhancement Formula in this program is our comprehensive Bone Guardian formula that is based upon micronized veal bone that provides hydroxyapatite (Ca10(PO4)6(OH)2). Hydroxyapatite is the basic component of human bone that is 50% by volume and 70% by weight. Whereas the Vitamin D3 Plus formula builds the bone matrix, the Bone Guardian fills in the matrix with materials such as calcium, phosphorus, magnesium, boron, zinc, manganese, copper, silica, and strontium. HPDI sells Bone Guardian in both the tablet and capsule forms. The capsule form may be better for older people who are able to absorb capsules better than tablets.

A third Enhancement Formula to the program is additional amounts of Vitamin C. Vitamin C is known to participate in every step of the process of building collagen, which is a key component of bone. Vitamin C has been shown to increase bone mass density. We recommend slowly increasing your intake of buffered Vitamin C until you reach your bowel tolerance. This can be accomplished by increasing your intake of HPDI’s foundational supplement PRO-C™ formula. The PRO-C has the added value of containing oligomeric proanthocyanidins (OPCs) from grape seed, skin, & pulp. OPCs in the body are able to strongly crosslink and strengthen new and damaged collagen fibers needed needed to repair bones, ligaments, tendons, and cartilage.


The third element in the program are Specific Condition Formulas that directly address issues related to bone fractures. The first of these is the addition of a joint formula that allows the body to build and repair connective tissue and to significantly reduce inflammation in the area of bone fractures. In most cases of fractures there will be damaged ligaments and tendons as well as inflammation in the area.

HPDI’s Joint Health Formula includes the ingredients glucosamine hydrochloride, MSM, and sea cucumber (a significant source of chondroiten sulfate) in addition to anti-inflammatory substances such as turmeric extract, rutin, and grape extract (seed, pulp, and skin) that have been extremely helpful in both repairing connective tissue and reducing pain and inflammation.

A second strongly recommended condition-specific formula is proteolytic enzymes. Because it is highly likely in the case of bone fractures and injury that there is significant tissue damage, a formula with pancreatic and plant enzymes as well as anti-inflammatories can be extremely helpful is clearing out the damaged tissue. This gives the body the opportunity to begin the rebuilding process much sooner.

Our recommended PROLYT formula contains the proteolytic enzymes bromelain, trypsin (pancreatic enzyme), and chymotrypsin (pancreatic enzyme), and the polyphenols/bioflavonoids turmeric extract (95% curcuminoids), quercetin and oligomeric proanthocyanidins (OPCs) from grape extract. This formula when taken on an empty stomach between meals is quickly absorbed into the bloodstream and goes to work cleaning up any damaged tissues in the area surrounding a fracture and assists in reducing pain and inflammation.


A final Specific Condition Formula that I highly recommend for healing bone fractures is to rub Ancient Minerals Magnesium Oil on and surrounding the fracture area. Bones cannot heal without having adequate amounts of magnesium available. Unfortunately, many people are deficient in magnesium and even taking oral magnesium cannot easily provide sufficient amounts to an area with a bone fracture. Magnesium oil (mostly magnesium chloride) is quickly absorbed transdermally (via skin) and often can provide rapid healing and pain relief!


The processed food diets with a high protein and low vegetable content consumed by many people in the U.S. and elsewhere often produce conditions in the body of acidity. This in turn leads to decreased oxygenation of cells and encourages a greater amount of anaerobic processes in metabolism. In addition, when the body is acidic calcium can be taken from bones in order to balance the acidity. This can lead to poor healing of bone fractures.

In order to counter acidic conditions in the body we recommend the use of HPDI’s pH ADJUST formula. As a dietary supplement, take 1 gm (about a rounded ¼ tsp) in 4-8 ounces of purified water preferably away from food, or as directed by a health care professional.  For extremely acidic conditions, try 4–10 doses per day, depending on acidity level. Use pH paper to ensure pH levels remain balanced, and do not become too alkaline (alkalosis may occur above pH 8.2).

TESTING pH LEVELS: The best way to test pH levels is to use litmus paper, which HPDI offers in rolls (Hydrion brand) for this purpose. You can test salivary or urinary pH. In order to test salivary pH, simply use a small strip of pH paper to dip into a small amount of saliva. Advantages of pH paper include rapid results, ease of use, and cost effectiveness.

pH Paper bone fractures protocol

The color of the litmus paper indicates the pH level of the body fluid tested. Most litmus paper comes with an indicator chart showing colors corresponding to various pH levels. Alkaline states will generally produce a dark green, blue or purple color (most basic). Acidic states will range from yellow (most acidic) to light green.

Salivary pH and urinary pH are significantly affected by recent food consumption and other factors, so it it best to test pH hours after meals or in the morning when you awake. We prefer to measure urinary pH since results are more consistent. Measuring urinary pH is a simple as placing a few drops of urine on the paper or dipping the paper into a sample cup of fresh urine.

A consistent pH measurement of less than 7.0 indicates that you are too acidic (values less than 6.2 show extreme acidity). This indicates that you should consume more alkaline forming foods (usually vegetables) and/or take pH ADJUST. A single dose of pH ADJUST can change conditions in the body from acidic to alkaline within a few hours.


The VDR gene (contained in every cell of the body) provides instructions for making a protein called vitamin D receptor (VDR), which allows the body to respond appropriately to vitamin D. This vitamin can be acquired from foods in the diet or made in the body by exposure to from sunlight. Vitamin D is involved in maintaining the proper balance of several minerals in the body, including calcium and phosphate, which are essential for the normal formation of bones and teeth. One of vitamin D’s major roles is to control the absorption of calcium and phosphate from the intestines into the bloodstream. Vitamin D is also involved in several process unrelated to bone formation.

VDR attaches (binds) to the active form of vitamin D, known as calcitriol. Calcitrol is produced in the body from Vitamin D3 (cholecalciferol) in the liver and kidneys. The interaction with calcitriol allows VDR to partner with another protein called retinoid X receptor (RXR). The resulting complex of proteins then binds to particular regions of DNA, known as vitamin D response elements, and regulates the activity of vitamin D-responsive genes. By turning these genes on or off, VDR helps control calcium and phosphate absorption and other processes.

In recent years, genetic tests have become available that show VDR variations can cause serious conditions related to low bone density and other important body functions such a higher blood glucose levels or lower immune system function. If a person is having little success in healing bone fractures, it is possible that VDR variations are a key factor of causation.

In such cases, we recommend having genetic testing done to determine if VDR variations are present. Recently, HPDI has teamed with a genetic testing company (BodySync, Inc.) and sells the BodySync test kits on our Reseller site. Please click here to see our blog article regarding the BodySync genetic test. Among the genes tested for in the test are three variations of the VDR gene. Resellers can purchase the test kits directly from HPDI and retail customers can call us  (800-228-4265) to find out how we can help them get a test kit and support them with any associated counseling regarding the results.


I have included all of the above supplements including recommended dosages plus more related to having an excellent diet in the table provided below.

Description AM Noon PM Night Comments
PRO-C 2 caps 2 caps 2 caps Take with meals or with snack.
Bone Guardian 

Bone Guardian Caps (easier to absorb)

3 tabs

3 caps


3 caps

3 tabs

3 caps

Take with meals.

Take with meals.

Mighty Multi-Vite! or
Multi Two — Multivitamins
2 caps or
1 tab
2 caps or
1 tab
Take with meals.
Essential Fats plus E 2 softgel 2 softgel 2 softgel Take with meals.
PROLYT – Proteolytic Enzyme Formula 2 caps 2 caps 2 caps 2 caps Take between meals.
Buffered Vitamin C, Tablets — 1,000 mg (1 gm) or Powder (1/4 tsp = 1 gm) 2 tabs or
1/2 tsp
2 tabs or
1/2 tsp
2 tabs or 1/2 tsp 2 tabs or 1/2 tsp Best with meals, but other times are okay. Start with 2 tabs or 1/2 tsp twice per day and add another 2 tabs or 1/2 tsp every few days until you are taking 8 tabs or 2 tsp per day.
Vitamin D3 Plus 5,000 IU 1 softgel 1 softgel Take with meals. Reduce to 1 softgel after 2 months.
Joint Health Formula 2 caps 2 caps 2 caps Take between meals and away from Bone Guardian.
Magnesium Oil 10 pumps 10 pumps 10 pumps 10 pumps Spray on affected area – or nearby area.
Rejuvenate! Plus or
Rejuvenate! (original)
1 scoop 1 scoop Take as a meal by itself or with fruit/berries.


Additional nutrients that may be helpful include pH ADJUST (to balance excess acidity in the body),  Warrior Mist™ for pain relief (rub on adjacent area several times daily), Echinacea (as drops or capsules), N-Acetyl-L-Cysteine – NAC (2 gms per day), Progesterone Cream – for women (1/4–1/2 tsp twice daily), and Prescript-Assist™ probiotics (2 capsules daily) if on antibiotics.


Consume a diet that provides good amounts of protein which is needed by the body to support the healing of bone fractures. Eat meats, poultry and fish (e.g., sardines, salmon, mackerel) in the amount of a 5–10 ounces per day. Ensure a good intake of organic vegetables, including high levels of dietary fiber. Drink 16 oz per day of fresh vegetable juices from carrot, celery, beets, cabbage, etc.

Other healthy foods (preferably organic) include fruits, whole grains (e.g., brown rice, millet, and quinoa), beans, nuts and seeds (sunflower, chia, flax, pumpkin, almond, walnut and sesame in small amounts — 2 or 4 ounces — are good). Try eating Hank’s Vegetable Soup several times a week. Avoid all sweets (sugar), processed/refined foods (white bread and pasta), preservatives, and artificial flavors and colors. Vary your diet.


An additional treatment that can be useful is hydrotherapy. In particular, hot and cold showers are a very effective way to move the blood and create circulation. This can speed up both detoxification and delivery of healing nutrients to the area of a bone fracture. Here’s how to do this. Once daily, take a complete hot and cold shower. You will start with hot water for one minute, then cold for one minute. Repeat this seven (7) times so the shower should last about 15 minutes.

Another time, daily, you can perform a complete hot and cold shower routine again or a partial one just applying the water directly to or near the area where there is a bone fracture. While you are doing both hot and cold showers, pay special attention to any affected area and massage it as vigorously as is safe and comfortable. If a shower is impossible, then alternate hot packs and ice packs on the area of the bone fracture.


By following the recommendations and suggested supplement schedule, healing time for bone fractures can be significantly reduced and fractures may heal more completely with fewer complications. By ensuring your body receives the proper nutrients it needs to heal itself, and by engaging in other relevant practices (e.g., hydrotherapy), you and/or your loved ones may be able to deal with bone fractures successfully, and continue a healthy, vibrant lifestyle.









Dr. Hank Liers, PhD dietary supplementFred Liers PhD dietary supplement dshea

In February 2015, the Orthomolecular Medicine News Service (OMNS) published an article reviewing the major scientific research studies on Vitamin D for the year 2014.

As noted by the author William B. Grant, PhD, “research into the health effects associated with vitamin D continued to be strong in 2014. The number of publications with vitamin D in the title or abstract listed at pubmed.gov increased from 3,119 in 2011 to 3,919 in 2014.”

Seven top vitamin D researchers selected the 20 papers they regard as making the greatest contribution to understanding the health effects of vitamin D for the year. Here we publish the article with permission. ~


by William B. Grant, PhD

(OMNS Feb 3, 2015) Higher vitamin D blood levels may reduce the risk of many types of disease including autoimmune diseases, cancers, cardiovascular disease, dementia, diabetes mellitus, and falls and fractures.

Research into the health effects associated with vitamin D continued to be strong in 2014. The number of publications with vitamin D in the title or abstract listed at pubmed.gov increased from 3,119 in 2011 to 3,919 in 2014. Seven vitamin D researchers (listed after this report) worked together to pick the 20 papers in 2014 that made the most contribution to understanding the health effects of vitamin D in 2014.

sunset at beach vitamin d research

Sunshine plays a major role in vitamin D production but foods/supplements can support optimal levels.

Papers are not in priority order, but instead grouped by type of study. For the purpose of this article “vitamin D” in the blood is a measurement of 25-hydroxyvitamin D or 25(OH)D.

Do randomized controlled trials work for vitamin D?

No one refutes the fact that vitamin D is beneficial to the skeletal system. There are many studies (randomized controlled trials [RCT] and also epidemiological) that support this hypothesis. What is at odds is whether or not vitamin D is beneficial to the non-skeletal system. There are many observational (epidemiological, or association) studies that show vitamin D is beneficial, and many RCTs that show it isn’t. Does that mean that vitamin D does not aid in disease prevention? Or does it mean that the RCT model does not work for nutrients?


Vitamin D3 supplementation in patients with chronic obstructive pulmonary disease [Martineau, 2014]

A vitamin D trial in the UK in which patients with chronic obstructive pulmonary disease (COPD) were given 120,000 IU vitamin D3 every two months for a year found that vitamin D3 supplementation was protective against moderate or severe exacerbation in those with baseline 25(OH)D concentrations < 50 nmol/L (20 ng/mL) but not for those with concentrations > 50 nmol/L. Vitamin D3 supplementation had no effect on upper respiratory infections. This is consistent with previous RCTs that used high doses at infrequent intervals, every 2 months in this case; however other trials that used an adequate dose given daily have shown reduction in upper respiratory tract infections.

Vitamin D promotes vascular regeneration [Wong, 2014]

This study demonstrated that vitamin D improved cardiovascular disease. The German team investigated this effect several ways. They showed that supplementation with 4000 IU/day of vitamin D3 increased the number of circulating angiogenic myeloid cells, which promote growth and vascular regeneration necessary for a healthy cardiovascular system. A similar result was found in a mouse model, which also demonstrated restoration of impaired angiogenesis (new vessel formation) function. They also examined the mechanisms by which vitamin D acted.

Vitamin D and depression: a systematic review and meta-analysis comparing studies with and without biological flaws. [Spedding, 2014]

This paper reported on a statistical average of many studies of vitamin D RCTs without methodological flaws and found that vitamin D supplementation resulted in a statistically significant improvement in clinical depression. However, the same analysis of vitamin D RCTs with methodological flaws found a statistically significant worsening of depression. The major flaws identified included not increasing 25(OH)D concentrations and not measuring baseline or final 25(OH)D concentrations. Vitamin D supplementation of > 800 IU/d was somewhat favorable in the management of depression.

Effect of vitamin D supplementation on antibiotic use: a randomized controlled trial. [Tran, 2014]

A post hoc (conducted after the study was completed) analysis of a vitamin D RCT involving 644 Australian residents aged 60-84 years found a significant reduction in prescribed antibiotics if they were over the age of 70 years and taking 60,000 IU of vitamin D3 monthly compared with the placebo groups. The effect was not significant for those < 70 years of age. This study suggests that taking an average of 2000 IU/day vitamin D3 reduces the risk of infections, most likely respiratory infections, in older adults.


Observational studies provide some of the strongest evidence to date for beneficial health outcomes related to vitamin D. Observational studies measure vitamin D status and health outcomes for every participant. Blood samples are taken at the time of enrollment and people are followed for several years. Vitamin D is said to be effective if positive health outcomes result.

Vitamin D and risk of cause specific death: systematic review and meta-analysis of observational cohort and randomised intervention studies [Chowdhury, 2014]

This paper was a review of observational and RCT studies that showed a correlation between vitamin D and specific mortality outcomes. One conclusion was that supplementation with vitamin D3 significantly reduces overall mortality among older adults. They used data from 73 cohort studies (849,412 participants) and 22 RCTs (30,716 participants). In the RCTs, all cause mortality rate was reduced by 11% for vitamin D3 supplementation but increased by 4% for vitamin D2 supplementation. In addition, their meta-analysis of cancer-specific incidence and mortality rates comparing those who started in the lowest third of vitamin D blood concentrations against those in the highest third suggests that vitamin D may have a much stronger impact on survival after developing cancer than on reducing the risk of developing cancer to start with.

Meta-analysis of all-cause mortality according to serum 25-hydroxyvitamin D [Garland, 2014]

An analysis of 32 observational studies found that as 25(OH)D concentrations increased from 13 nmol/L (5 ng/ml) to 90 nmol/L (36 ng/ml) there is a linear reduction in all-cause mortality. At concentrations greater than 90 nmol/L (36 ng/ml), no further improvement was observed. This finding is important in that it did not find any evidence for a U-shaped relationship showing higher risk for both low and high 25(OH)D concentrations as has been reported in some studies. Furthermore, the risk for all-cause mortality rate for those with 25(OH)D concentration < 25 nmol/L (10 ng/mL) was 1.9 compared to that for those with concentrations > 100 nmol/L (40 ng/mL).

Low vitamin D level is an independent predictor of poor outcomes in Clostridium difficile-associated diarrhea [Wang, 2014]

A study in New York found that 25(OH)D concentration and age were the only independent predictors of response to the highly fatal Clostridium difficile-associated diarrhea (CDAD). Subjects with 25(OH)D concentration < 53 nmol/L (21 ng/mL) were 4.75 times more likely to fail to resolve CDAD after 30 days than subjects with 25(OH)D concentrations > 75 nmol/L (30 ng/mL). This is an important finding since CDAD rates are increasing due to antibiotic resistant strains of CD.

Avoidance of sun exposure is a risk factor for all-cause mortality: results from the MISS cohort [Lindqvist, 2014]

An observational study in Sweden involving 29,518 women followed for up to 20 years with 2,545 reported deaths found that the mortality rate for those who avoided sun exposure was approximately twice as high as those who were most exposed to the sun. This difference explained 3% of all deaths and is important since UVB doses in Sweden are generally low and virtually absent for six months of the year. Production of vitamin D may explain most of the differences between sun exposure amounts, although other beneficial effects of solar UV exist, such as release of nitric oxide resulting in reduction of blood pressure, as well as vitamin D-independent effects on the immune system.

25-Hydroxyvitamin D in the range of 20 to 100 ng/ml and incidence of kidney stones [Nguyen, 2014]

GrassrootsHealth (510c3) initiated a voluntary reporting project called D*action. There are over 7,000 in the cohort, of which 2,012 have reported their data for a median of 19 months. In this cohort, there has been no evidence of an association of 25(OH)D and kidney stones. What was a risk factor for kidney stones in this study was high body mass index. This study counters the Women’s Health Initiative study that reported an elevated risk of kidney stones for women taking 400 IU/d vitamin D3 and 1500 mg/d calcium.

Prediagnostic circulating vitamin D levels and risk of hepatocellular carcinoma in European populations: a nested case-control study [Fedirko, 2014]

An observational study involving 520,000 participants in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort, of which 138 developed hepatocellular carcinoma (HCC) or liver cancer, found that higher levels of 25(OH)D reduced incidence of HCC. Each 10 nmol/L (4 ng/mL) increase in 25(OH)D concentration was associated with a 20% average decrease in risk of HCC. The large number of participants in the study with a very small number of cases indicates the difficulty of demonstrating the beneficial effect of vitamin D for the rare cancers. The authors noted that the result did “not change after adjustment for biomarkers of preexisting liver damage, nor chronic infection with hepatitis B or C viruses.”

Plasma vitamin D concentration influences survival outcome after a diagnosis of colorectal cancer [Zgaga, 2014]

A study in Ireland and Scotland involving 1,598 patients with stage I to III colorectal cancer, found that 25(OH)D concentrations (measured approximately 15 weeks after diagnosis of colorectal cancer) were associated with survival rates. Those in the highest third of 25(OH)D concentrations with a median concentration of 51 nmol/L (20 ng/mL) compared to the lowest third with a median concentration of 10 nmol/L (4 ng/mL) had a 32% lower risk of cancer-specific mortality rate and a 30% lower risk of all-cause mortality rate over a ten-year follow-up period. This study provides support for the idea that people diagnosed with cancer should raise their 25(OH)D concentration to above a minimum of 50 nmol/L (20 ng/mL),

Meta-analysis of vitamin D sufficiency for improving survival of patients with breast cancer [Mohr, 2014]

Two meta-analyses found significantly increased cancer survival rates with higher concentration of 25(OH)D at time of diagnosis. For breast cancer, results from five studies found that those with 25(OH)D concentration of 75 nmol/L (30 ng/mL) had half the 5-20 year mortality rate as those with a lower concentration of 30 nmol/L (12 ng/mL).

Could vitamin D sufficiency improve the survival of colorectal cancer patients? [Mohr, 2014]

In this meta-analysis for colorectal cancer, results from four studies found that those with 25(OH)D concentration of 80 nmol/L (32 ng/mL) had 60% of the 6-20 year mortality rate as those with 45 nmol/L (18 ng/mL).

Reduced 25-hydroxyvitamin D and risk of Alzheimer’s disease and vascular dementia [Afzal, 2014]

Two papers reported that those with low 25(OH)D concentrations had increased risk of developing vascular dementia and Alzheimer’s disease. This first one is from Denmark. A study involving 418 people followed for 30 years found a 25% increased risk of Alzheimer’s disease and a 22% increased risk of vascular dementia for those with baseline 25(OH)D concentration < 25 nmol/L (10 ng/ml) compared to > 50 nmol/L (20 ng/ml)

Vitamin D and the risk of dementia and Alzheimer disease [Littlejohns, 2014]

In this second paper on dementia and Alzheimer disease, a study in the United States involving 1,658 participants followed for 5.6 years found a 125% increased risk of Alzheimer’s disease for those with severely deficient 25(OH)D levels (< 25 nmol/L (10 ng/mL)), and a 53% increased risk for those with deficient levels ( ≥ 25 to < 50 nmol/L) compared to participants with sufficient concentrations ( ≥ 50 nmol/L (20 ng/mL)).


Post-hoc comparison of vitamin D status at three time points during pregnancy demonstrates lower risk of preterm birth with higher vitamin D closer to delivery [Wagner, 2014]

There is considerable interest in the role of vitamin D during pregnancy. In a reanalysis of results from two maternal vitamin D supplementation trials conducted in South Carolina, it was found that: “(1) maternal vitamin D status closest to delivery date was more significantly associated with preterm birth, suggesting that later intervention as a rescue treatment may positively impact the risk of preterm delivery, and (2) a serum concentration of 100 nmol/L (40ng/mL) in the 3rd trimester was associated with a 47% reduction in preterm births.”

Vitamin D in fetal development: Findings from a birth cohort study [Hart, 2014]

A study in Australia compared maternal 25(OH)D concentration at 18 weeks’ pregnancy with outcomes of the children years later. The authors found that “maternal vitamin D deficiency during pregnancy was associated with impaired lung development in 6-year-old offspring, neurocognitive difficulties at age 10, increased risk of eating disorders in adolescence, and lower peak bone mass at 20 years.”

Vitamin D and pre-eclampsia: original data, systematic review and meta-analysis [Hypponen, 2014]

A review of vitamin D supplementation and 25(OH)D concentrations during pregnancy found vitamin D reduces the risk of pre-eclampsia. For 25(OH)D concentration, the combined risk reduction was 48% with higher level circulating vitamin D. For vitamin D RCTs, the combined risk reduction was 34% for vitamin D supplementation vs. a placebo. This review provides further support for the importance of vitamin D supplementation and raising 25(OH)D concentrations during pregnancy.


An approach recently being applied to evaluating whether vitamin D can be considered causally linked to health outcomes is Mendelian randomization analysis. In this approach, genetic variants known to be affected by vitamin D are compared to health outcomes. The advantage of this approach is that the results should be independent of baseline 25(OH)D concentrations, which vary over time. The disadvantage is that only a few factors are considered and the most important ones affecting 25(OH)D concentrations may not be included.

Genetically low vitamin D concentrations and increased mortality: mendelian randomization analysis in three large cohorts [Azfal, 2014]

In a study involving 95,766 white participants of Danish descent, genetic variations of DHCR7 (related to vitamin D synthesis) and CYP2R1 (hepatic 25-hydroxylation), which slightly lower plasma 25(OH)D concentrations over the lifetime of the subjects, were examined. As 25(OH)D increased, significant reductions were found for all-cause, cancer and other mortality rates, but not for cardiovascular mortality. These results are interesting, but the method is not strong enough to rule out a protective role of vitamin D in reducing risk of cardiovascular disease. Some regard this approach as particularly weak, since the serum 25(OH)D concentration depends much more in the general population upon solar exposure than upon genes.

Guidelines for optimizing design and analysis of clinical studies of nutrient effects [Heaney, 2014]

Most vitamin D RCTs were based on guidelines designed for pharmaceutical drugs where the only source of the agent is the medication in the trial, and there is a linear dose-response relation between the agent and the outcome. Dr. Heaney asserts that neither assumption is valid for vitamin D trials.

Instead, vitamin D trials should:

  1. Start with an understanding of the 25(OH)D concentration-health outcome relationship. What are we expecting to find?
  2. Measure 25(OH)D concentrations of prospective trial participants and only enroll those with values near the low end of the relation.
  3. Supplement with enough vitamin D to raise 25(OH)D concentrations to near the upper end of the relation.
  4. Measure 25(OH)D concentrations throughout the trial.
  5. Optimize the status of other nutrients related to vitamin D so that vitamin D is the only limiting factor in the response.

Unfortunately, many of the ongoing vitamin D trials have not been designed with these or similar guidelines in mind. As a result, it may be some time before vitamin D RCTs will be able to provide adequate evidence to confirm or refute the findings of observational studies for non-skeletal diseases.


Research on the health benefits of solar UVB exposure and vitamin D continues at a rapid pace. We appear to be in the middle of the golden age of vitamin D research, a period with much progress in understanding the effects of UVB exposure and vitamin D for a large range of health outcomes. We are shifting from discovery to evaluation of previous findings and testing the role of vitamin D in prevention and treatment of various diseases.

While many of the findings from ecological and observational studies are strong, it appears that health systems and policy makers are awaiting results from large on-going RCTs before they accept UVB exposure and vitamin D as valid factors for health. Unfortunately, most of the RCTs currently underway and due to be completed before the end of the decade, including large-scale RCTs in several countries, have not been properly designed, so they may not shed light on vitamin D’s preventive powers. Thus, it may be another decade before the true health benefits of vitamin D and sunlight are accepted. Meanwhile, various types of research will continue and it will be up to individuals and their health care providers to evaluate the available evidence and act accordingly.

For additional information on solar UVB and vitamin D:



Other OMNS Press Releases on Vitamin D

This press release is the fifth in the series on vitamin D by the Orthomolecular Medicine News Service. Previous articles:

  1. Vitamin D Stops Cancer; Cuts Risk In Half. American Cancer Society Drags its Feet. Oct. 2, 2008. http://orthomolecular.org/resources/omns/v04n11.shtml
  2. Why You Need More Vitamin D. A Lot More. Sept. 16, 2011. http://orthomolecular.org/resources/omns/v07n07.shtml
  3. Top Vitamin D Papers of 2011, Dosage Recommendations and Clinical Applications. April 10, 2012; http://orthomolecular.org/resources/omns/v08n12.shtml
  4. Vitamin D is Now the Most Popular Vitamin. Jan. 17, 2013. http://orthomolecular.org/resources/omns/v09n01.shtml

Peer review by:

Barbara J Boucher, MD, FRCP, Centre for Diabetes, Blizard Institute, Bart’s & The London School of Medicine & Dentistry, Queen Mary University of London, London, UK.

John J. Cannell, MD, Director, Vitamin D Council, San Luis Obispo, CA, http://www.vitamindcouncil.org/

Cedric F. Garland, DrPH, Professor, Department of Family and Preventive Medicine, Division of Epidemiology, University of California San Diego, La Jolla, CA

William B. Grant, Ph.D., Director, Sunlight, Nutrition and Health Research Center, San Francisco, CA,  http://www.sunarc.org/

Michael F. Holick, M.D., Ph.D., Department of Medicine, Section of Endocrinology, Nutrition, and Diabetes, and the Vitamin D, Skin, and Bone Research Laboratory, Boston University Medical Center, Boston, MA,  http://drholick.com/, Interview at http://www.doctoryourself.com/holick.html

Henry Lahore, Director, http://www.vitaminDwiki.com, Port Townsend, WA

Pawel Pludowski, M.D., Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children’s Memorial Health Institute, Warsaw, Poland



Afzal S, Bojesen SE, Nordestgaard BG. Reduced 25-hydroxyvitamin D and risk of Alzheimer’s disease and vascular dementia. Alzheimers Dement. 2014 May;10(3):296-302.

Afzal S, Brondum-Jacobsen P, Bojesen SE, Nordestgaard BG. Genetically low vitamin D concentrations and increased mortality: mendelian randomisation analysis in three large cohorts. BMJ. 2014 Nov 18;349:g6330. http://www.ncbi.nlm.nih.gov/pubmed/25406188

Chowdhury R, Kunutsor S, Vitezova A, Oliver-Williams C, Chowdhury S, Kiefte-de-Jong JC, Khan H, Baena CP, Prabhakaran D, Hoshen MB, Feldman BS, Pan A, Johnson L, Crowe F, Hu FB, Franco OH. Vitamin D and risk of cause specific death: systematic review and meta-analysis of observational cohort and randomised intervention studies. BMJ. 2014 Apr 1;348:g1903. http://www.bmj.com/content/348/bmj.g1903?view=long&pmid=24690623

Fedirko V, Duarte-Salles T, Bamia C, Trichopoulou A, Aleksandrova K, Trichopoulos D, Trepo E, Tjonneland A, Olsen A, Overvad K, Boutron-Ruault MC, Clavel-Chapelon F, Kvaskoff M, Kühn T, Lukanova A, Boeing H, Buijsse B, Klinaki E, Tsimakidi C, Naccarati A, Tagliabue G, Panico S, Tumino R, Palli D, Bueno-de-Mesquita HB, Siersema PD, Peters PH, Lund E, Brustad M, Olsen KS, Weiderpass E, Zamora-Ros R, S nchez MJ, Ardanaz E, Amiano P, Navarro C, Quir¢s JR, Werner M, Sund M, Lindkvist B, Malm J, Travis RC, Khaw KT, Stepien M, Scalbert A, Romieu I, Lagiou P, Riboli E, Jenab M. Prediagnostic circulating vitamin D levels and risk of hepatocellular carcinoma in European populations: a nested case-control study. Hepatology. 2014 Oct;60(4):1222-30.  http://www.ncbi.nlm.nih.gov/pubmed/24644045

Garland CF, Kim JJ, Mohr SB, Gorham ED, Grant WB, Giovannucci EL, Baggerly L, Hofflich H, Ramsdell J, Zeng K, Heaney RP.Meta-analysis of all-cause mortality according to serum 25-hydroxyvitamin D. Am J Pub Health. 2014 Aug;104(8):e43-50. http://www.ncbi.nlm.nih.gov/pubmed/24922127

Hart PH, Lucas RM, Walsh JP, Zosky GR, Whitehouse AJ, Zhu K, Allen KL, Kusel MM, Anderson D, Mountain JA. Vitamin D in fetal development: Findings from a birth cohort study. Pediatrics. 2015 Jan;135(1):e167-73. http://www.ncbi.nlm.nih.gov/pubmed/25511121

Heaney RP. Guidelines for optimizing design and analysis of clinical studies of nutrient effects. Nutr Rev. 2014 Jan;72(1):48-54. http://www.ncbi.nlm.nih.gov/pubmed/24330136

Hyppönen E, Cavadino A, Williams D, Fraser A, Vereczkey A, Fraser WD, B nhidy F, Lawlor D, Czeizel AE. Vitamin D and pre-eclampsia: original data, systematic review and meta-analysis. Ann NutrMetab. 2013;63(4):331-40. (published in 2014) http://www.ncbi.nlm.nih.gov/pubmed/24603503

Lindqvist PG, Epstein E, Landin-Olsson M, Ingvar C, Nielsen K, Stenbeck M, Olsson H. Avoidance of sun exposure is a risk factor for all-cause mortality: results from the MISS cohort. J Intern Med. 2014 Jul;276(1):77-86. http://www.ncbi.nlm.nih.gov/pubmed/24697969

Littlejohns TJ, Henley WE, Lang IA, Annweiler C, Beauchet O, Chaves PH, Fried L, Kestenbaum BR, Kuller LH, Lang KM, Lopez OL, Kos K, Soni M, Llewellyn DJ. Vitamin D and the risk of dementia and Alzheimer disease.Neurology. 2014 Sep 2;83(10):920-8.

Martineau AR, James WY, Hooper RL, Barnes NC, Jolliffe DA, Greiller CL, Islam K, McLaughlin D, Bhowmik A, Timms PM, Rajakulasingam RK, Rowe M, Venton TR, Choudhury AB, Simcock DE, Wilks M, Degun A, Sadique Z, Monteiro WR, Corrigan CJ, Hawrylowicz CM, Griffiths CJ. Vitamin D3 supplementation in patients with chronic obstructive pulmonary disease (ViDiCO): a multicentre, double-blind, randomised controlled trial. Lancet Respir Med. 2014 Dec 1. pii: S2213-2600(14)70255-3. doi: 10.1016/S2213-2600(14)70255-3. [Epub ahead of print] http://www.ncbi.nlm.nih.gov/pubmed/25476069

Mohr SB, Gorham ED, Kim J, Hofflich H, Cuomo RE, Garland CF. Could vitamin D sufficiency improve the survival of colorectal cancer patients? J Steroid Biochem Mol Biol. 2014 Dec 19. pii: S0960-0760(14)00316-1. doi: 10.1016/j.jsbmb.2014.12.010. [Epub ahead of print] http://www.ncbi.nlm.nih.gov/pubmed/25533386

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Wagner CL, Baggerly C, McDonnell SL, Baggerly L, Hamilton SA, Winkler J, Warner G, Rodriguez C, Shary JR, Smith PG, Hollis BW. Post-hoc comparison of vitamin D status at three time points during pregnancy demonstrates lower risk of preterm birth with higher vitamin D closer to delivery. J Steroid Biochem Mol Biol. 2014 Nov 13. pii: S0960-0760(14)00268-4. doi: 10.1016/j.jsbmb.2014.11.013. [Epub ahead of print] http://www.ncbi.nlm.nih.gov/pubmed/25448734

Wang WJ, Gray S, Sison C, Arramraju S, John BK, Hussain SA, Kim SH, Mehta P, Rubin M. Low vitamin D level is an independent predictor of poor outcomes in Clostridium difficile-associated diarrhea. Therap Adv Gastroenterol. 2014 Jan;7(1):14-9. http://www.ncbi.nlm.nih.gov/pubmed/24381644

Wong MS, Leisegang MS, Kruse C, Vogel J, Schürmann C, Dehne N, Weigert A, Herrmann E, Brüne B, Shah AM, Steinhilber D, Offermanns S, Carmeliet G, Badenhoop K, Schröder K, Brandes RP. Vitamin D promotes vascular regeneration. Circulation. 2014 Sep 16;130(12):976-86. http://www.ncbi.nlm.nih.gov/pubmed/25015343

Zgaga L, Theodoratou E, Farrington SM, Din FV, Ooi LY, Glodzik D, Johnston S, Tenesa A, Campbell H, Dunlop MG. Plasma vitamin D concentration influences survival outcome after a diagnosis of colorectal cancer. J Clin Oncol. 2014 Aug 10;32(23):2430-9. http://www.ncbi.nlm.nih.gov/pubmed/25002714

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