RDA & DRI

I am taking a supplement of 1 gram of vitamin C as an antioxidant. What are the collateral effects related to the excess of Vitamin C? First of all, it turns your urine yellow. It makes your urine more acid, which decreases urinary pH and the possibility of urinary tract infections. Beyond that 1 gram (1000...

What does Ginseng do to one's metabolism? Are there long-term risks associated with taking Ginseng tea daily? Ginseng does not change your metabolism. The only long-term risk I've seen associated with taking ginseng in any form is that excessive use can increase blood pressure. I would suggest you check out The Herbalist or Chinese Medicine and...

I have a general question for you. There is a dispute right now in my house about carrots having vitamin D. We all agree that they contain a large amount of vitamin A, but are they also a good source of vitamin D? Thank you. Carrots are not a good source of vitamin D which...

How effective and safe are Chromium Picolinate and Fenfluramine as appetite suppressants? Chromium Picolinate is sold over the counter as a nutritional supplement. Chromium works with insulin in assisting cells to take in glucose and release energy. Chromium Picolinate has not been shown to cause weight loss and its ability to improve insulin effectiveness has...

I am taking a vitamin supplement called carotene with 15 milligrams. The label says it can be converted to vitamin A, maximum 25,000 IU. Also, I take Stresstabs. Is that too much? Carotene is a precursor form of retinol vitamin A that your body uses. It is not as toxic as retinol, but at 25,000...

My husband recently had a valve replacement. He will be taking Coumadin for the rest of his life. I read your helpful info on vitamin K, but have one more question - are all lettuces equally high in vitamin K? He has been told he can eat some foods as long as it is...

I was pregnant when the issue first came up---about a year ago and believe me, I was not about to take any chances. The high vitamin C dependency makes sense. I know my dad. Any opinion that is not his will be questioned immediately! Thanks again. During pregnancy, the risk of birth defects rises steadily...

Does niacin give a clean urine test? If so what kind of dose should be taken? Don't know what kind of clean urine test to which you are referring? If you mean a clean drug test, no vitamin or mineral supplement or food can create a clean urine test. Only going drug-free after a period...

What is your opinion of colloidal minerals? Thanks for your help! Colloidal minerals are molecules of minerals suspended in a liquid. The particles are not dissolved and may carry an electrical charge which enables them to combine with another particle to make a compound and precipitate out as a solid. These electrically charged particles are...

Don't be dissing Adelle Davis she had an MS in Biochemistry. What's yours in? Adelle Davis was a pioneer, way ahead of her time. Sounds like you've not even read her books. They're full of references to studies, etc. Don't you see how everything she said decades ago is all being corroborated now with...