Q: Is frozen yogurt as nutritious as regular yogurt? What happens to live cultures...
Answer : Simin Nikbin Meydani, DVM, PhD, professor of nutrition at the Friedman School and associate director of Tufts Jean Mayer USDA Human Nutrition Research Center on Aging, responds:
Q: What can you tell me about the possible toxic effect of peanut oil...
Answer : We tracked down one of the original researchers in those 1998 studies, David Klurfeld, PhD, who is now a national program leader in human nutrition with the USDAs Agricultural Research Service. He replies:
Q: Your newsletter often states the advantages of omega-3 fatty acids. But how much...
Answer : Both the American Heart Association and the 2005 federal Dietary Guidelines for Americans recommend consuming at least two servings of fish per week for heart health.
Q: With the increasing evidence for the benefits of vitamin D, is there any...
Answer : While not even the most avid vitamin D advocate suggests broiling yourself in a tanning booth, it is true that people in northern climes cant get enough sunshine during winter to trigger the bodys natural ability to make vitamin D.
Q: My doctor has prescribed me Coumadin (warfarin) to fight blood clots. I see...
Answer : We checked with Sarah L. Booth, PhD, director of the Vitamin K Laboratory at Tufts Jean Mayer USDA Human Nutrition Research Center on Aging, who shared the advice on warfarin and vitamin K shed recently reviewed for the Tufts-New England Medical Center:
Q: How does microwaving affect the nutritional value of food?
Answer : We posed this question to Helen Rasmussen, PhD, RD, senior research dietitian at Tufts Jean Mayer USDA Human Nutrition Research Center on Aging.
Q: I take flax-oil supplements every day and I was alarmed to read in...
Answer : We checked with the lead researcher on that study, Elaine W. T. Chong, MBBS...
Q: Is buckwheat a grain or is it actually a seed? I have it...
Answer : According to the Whole Grains Council www.wholegrainscouncil.org, buckwheat is neither a grain nor, despite its name, a relative of wheat...
Q: How can I keep from overeating during the holidays?
Answer : Helen Rasmussen, PhD, RD, an instructor at Tufts Friedman School, enlisted Laura Ficker, a masters candidate at the school, to offer these holiday tips:
Q: Do egg yolks really differ from egg whites in terms of raising bad...
Answer : A Yolks contain the fat and cholesterol in an egg, in addition to protein, vitamins and minerals.