RDA & DRI

I would really appreciate your advice on the use of coumadin and vitamin K supplements. I have a genetic condition called Protein C Deficiency. I am 44 years old and have been on coumadin for 11 years. There are 2 supplement products on the market that I would really like to take, but they...

I would like to know what foods are lower in vitamin K that are pure vegetarian (no meat, dairy, eggs). I have a friend who's taking anti-coagulants and needs to reduce vitamin K in her diet. She is a pure vegetarian for ethical reasons but must stay away from soy products, dark leafy green...

I hope you might be able to answer my dietary query. I have recently lost a lot of weight- over 100 pounds. In order to do this, I have been eating loads of carrots, as I need to eat something when I am stressed, which is quite often. When I recently went to the doctor,...

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...

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...

I am becoming concerned about the yellowish - orangish tint that my skin has developed. It is most noticeable on my palms and the pads of my feet, however, my entire body has it to some degree. I made drastic changes to my diet about two years ago. I have since lost 65 pounds and...

If you have time, I have pernicious anemia and wondered if you had any information on that? Pernicious anemia is caused by a deficiency of vitamin B 12. It would show up on a blood test because of the large immature red blood cells that are present. These large red blood cells are very inefficient...

I recently had a medical examination. The only problem that turned up was low iron. I forget the units, but my hemoglobin was 12.1. The doctor told me I should be 14 or more (for men). I hadn't thought I had a problem since I regularly donate blood. I have since found out that...

Where can I find a dietitian who works with people who have osteoporosis or don't get enough calcium? The Medical Nutrition and Nutrition Entrepreneurs dietetic practice groups of the Academy of Nutrition and Dietetics provide medical nutrition therapy based on your diagnosis. Dietitians often have their own private practice nutrition counseling services in addition to...

I couldn't find this issue addressed on your webpage. I hope this isn't a duplicate question. Is there any nutritional significance to the habit of chewing ice? I have heard that dentists advise against it because it could damage your teeth. Is this true? However, what I am really wondering is if it signifies any deficiency...