All of the above depends on what they mean by "getting enough"? Is that the pathetically low RDA, or some other yardstick "they" are using?
I just wonder how an Orthomolecular Physician would consider adequate dosage of supplements?
I personally take 10,000 iu 's of Retinol per day with 2000 iu's of Vitamin D3 along with a product called "Neurozan"...a Multi aimed at nerve and brain health; plus a liquid anti-aging supplement. The health benefits are just amazing.
The only concern I have is: does Vitamin A compete with D3 for absorption by using the same receptors? Thought I read that somewhere once and I'm damned if I can find the answer to it.
Be grateful if anyone knows the answer to that one.