RDA & DRI

I have been discussing with doctors this issue of the vitamins, but none could give me that convincing explanation and advice as you did. What you say make a lot of sense i.e. making expensive urine. Thanks a lot. The reason I said you would make expensive urine is your body absorbs about 15% from...

Thank you for your common sense approach to calcium supplements. We have been trying to force these lead-containing products off of the shelves or at least to force the manufacturers to disclose the contents to unsuspecting consumers of these products. I am interested in any information that you may have on this topic. Bone meal...

First, what is the difference between chelated zinc and Zinc Picolinate? Are these different manufacturing processes for the tablets? Is one better than the other? Am I in for trouble taking that much zinc? Finally, what could cause a zinc deficiency and possible effects of a zinc deficiency? Thanks much. Chelated minerals are bound to a compound and...

I'm concerned about getting enough calcium and am only 34 years old. The other day, I was watching a popular television program and they were discussing osteoporosis in women after menopause. Osteoporosis is characterized by a loss of calcium from bone, especially the spine and deterioration of bone tissue to the point it looks like...

I am doing a practical period in a zoo in Europe. There is a problem with some of their birds because they die of too much iron in their liver. We want to feed the birds a diet that is low in iron. Their diet consists of many different kinds of fruit, perhaps you...

I've just been put on 400 mg of B2, daily, for headaches and was trying to get more information. New treatment for migraines includes 400 milligrams of riboflavin per day. Ask your doctor before beginning as this is a very large dose of riboflavin. You also want to make sure your doctor eliminates other possible...

I've seen Chromium Picolinate advertised recently as a "metabolism boosting" diet supplement. Is there any merit to this claim? No. Initially there was some speculation that since chromium is a component of the hormone insulin that additional chromium would enhance insulin's ability to break down glucose. Research has not supported this theory.

While looking at my weight, age and the certainty of increasing medical problems, I've been working on a database that I can use for myself that will allow me to track things like track high blood pressure, blood sugars, medications, exercise, meals and the specific foods. While looking at the food section of the database,...

There have never been documented cases of nerve damage caused by vitamin B6 at doses of less than 500 milligrams a day. Please provide me with the documentation that says otherwise. Three hundred milligrams a day of vitamin B6 is safe and has been documented over and over to cure carpal tunnel. Please do...

I read in a parent's magazine that cooking spaghetti sauce in a cast iron pot adds a lot of iron. Is that iron the kind that is absorbed? It is true that foods cooked in cast iron skillets are higher in iron. However, the form of iron is not absorbed as well. Laboratory nutrient analysis...