The Institute of Medicine's Food and Nutrition Board, after 13 years of deliberation, finally came out with a recommendation that people require more vitamin D (IOM FNB 11/30/10).

The new recommendation raises the needed daily vitamin D from 200 IUs to 600 IUs. Based on clinical tests however, most people need more vitamin D to reach the healthier range (50-80 ng/ml). Researchers like Dr. Michael Holick find that  40,000,000+ Americans have an uptake block in their intestines. For them, and for anyone wanting  predictable vitamin D uptake, a liquid vitamin D3  formulated with MCTs is recommended for easy up-take through under the tongue mucosa. The importance of predictable vitamin D uptake continues to grow as more and more peer-reviewed literature confirms vitamin D deficiency is linked to cancer, osteoporosis, depression, diabetes, autism, heart disease, kidney disorders and depression.  

Support for Higher Daily Intake 

While 400 IU/day may be adequate for infants, 600 IU/day in pregnant women does not protect from childhood vitamin D deficiency-linked asthma and other autoimmune disorders. Numerous studies indicate that higher vitamin D intake per day is needed. One such study, conducted by professor Urashima and colleagues in Japan, found 1,200 IU/day of vitamin D3 for six months in 10-year-olds dramatically reduced the incidence of influenza A and asthma.  

To maintain healthy vitamin D levels, intake close to 5000 IU/day has been advocated, especially in obese, aged and/or dark-skinned patients.  This is in direct contrast to IOM's warning of vitamin D safe upper limits at >4000IU/day and 'possible toxicity' at 10,000 IU/day. The IOM recommendations build in an extra measure of caution by dividing by 10 the highest levels found safe.

 
PERQUE Integrative Health recommendation to practitioners

PERQUE believes that the individual's biochemical picture, rather than a generalized approach, should govern an individual's vitamin D intake.  Based on clinical studies by Dr Michael Holick and others, PERQUE recommends an adult daily intake of vitamin D sufficient to maintain a healthy target vitamin D (25-OH-cholecalciferol) level of 50-80 ng/ml.

Each drop of PERQUE D3 Cell Guard provides 500 IU of D3 (cholecalciferol) formulated with MCTs and rosemary oil to facilitate uptake, for predictable uptake and convenient and personalized dosing.