Vitamin D is appearing in the news a lot recently, mostly due to deficiency of it. There have been several opinions abounding on what is the correct recommended daily amount of Vitamin D and also what is the best source of vitamin D.
Professor emeritus of biochemistry and biomedical sciences, Anthony Norman is an internationally recognised expert on vitamin D. He says that there is insufficient Vitamin D intake for over half the people of Western Europe and North America.
Professor Norman described his fears about vitamin D lack, saying, “Elsewhere, it is worse. Given that two-thirds of the people are vitamin D-insufficient or deficient. It is clear that merely eating vitamin D-rich foods is not adequate to solve the problem for most adults.”
Vitamin intake is measured in ‘IUs’ (international units) and the daily recommendation fro vitamin D is 200 for people up to 50 years old, 400 for those between 51 and 70, and 600 for those over 70.
Norman wants to up those recommendations considerably. He said: “There is a wide consensus among scientists that the relative daily intake of vitamin D should be increased to 2,000 to 4,000 IU for most adults.”
Norman described how it could be done, saying “A 2000 IU daily intake can be achieved by a combination of sunshine, food, supplements, and possibly even limited tanning exposure.”
There are some very pressing reasons why an increase in the dosage of vitamin D would be beneficial to health, or at least getting the majority of people up to the current RDA. Norman revealed that “Several studies have reported substantial reductions in incidence of breast cancer, colon cancer and type 1 diabetes in association with adequate intake of vitamin D, the positive effect generally occurring within five years of initiation of adequate vitamin D intake.