Ask the Experts

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.

Q: I know it can be harmful to eat charred, blackened meat. Is the...

Answer : A We posed this question to Rashmi Sinha, PhD, senior investigator at the National Cancer Institute...

Q: I know that 100% whole-wheat bread is better for you than white bread....

Answer : Both rye bread and pumpernickel bread are typically made with a mix of rye flour and wheat flour.

Q: I enjoy eating buffalo meat when I am able to buy it from...

Answer : Buffalo (bison) meat is indeed much naturally lower in fat than beef from cattle. Its proportion of saturated, polyunsaturated and monounsaturated fat...

Q: I am confused by whether shrimp and other shellfish are good in the...

Answer : The good news for shrimp and other shellfish is that the major dietary factor that raises LDL (bad) cholesterol is saturated fat, not dietary cholesterol...