Q. I have heard that a person who is allergic to wool should take vitamin D2 instead of D3. Is this true?
Q. Nutritional websites and Nutrition Facts labels all seem to list different amounts of potassium in one cup of frozen spinach. How can this be?
Q. Does taking omega-3 fish oil help reduce the risk of developing prostate cancer?
A recent study published in the Journal of Nutrition found that consuming protein supplements did not help active older men build more muscle or gain more strength than resistance exercise training alone. Forty-one men with an average age of 70 completed whole-body resistance training three times a week for 12 weeks. Half the group drank a supplement containing 21 grams of protein after exercise and every night before bed. The other half drank a beverage with the same number of calories but no protein. At the end of the study period, while both groups were able to lift more weight and tests showed increased muscle mass, the protein group did not improve any more than the placebo group.
A study led by a Tufts researcher has found an association between levels of omega-3 polyunsaturated fatty acids in the blood over time and healthy aging.
Ive been hearing a lot about the health benefits of turmeric, but also about potential side effects. What does the science say?
It has been suggested that taking vitamin D supplements could help preserve muscle strength and functionality in older adults, but a new study concluded that supplementation alone had no impact on either muscle strength or physical performance.
A recent study, published in The Journal of Nutrition, looked at nutrient and herbal supplement use in U.S. adults. The study surveyed over 3,400 people ages 60 and older between 2011 and 2014. About 70 percent of respondents reported using at least one dietary supplement over the previous 30 days, says study co-author Johanna Dwyer, DSc, RD, senior nutrition scientist with the Office of Dietary Supplements at the National Institutes of Health and director of the Frances Stern Nutrition Center at Tufts University. Older Americans may want to rethink this practice, however, since a growing number of studies have found that supplements may not have the intended health benefits. Additionally, more information is needed on potential interactions between supplements and prescription drugs.
A growing number of Americans are turning to fish oil supplements to improve or prolong their health, but recent studies indicate these golden capsules may not be all that beneficial.
A federal advisory panel, the US Preventive Services Task Force (USPSTF), has released updated recommendations on calcium and vitamin D supplementation for bone health.