Home Ask the Experts

Ask the Experts

macronutrients

Q. Is it true that percentage intake of macronutrients (protein, CHO, fat) should be...

A. Lauren McAvoy, a dietetic intern at Tufts Medical Center, answers: “While there are claims that individuals with different body types metabolize nutrients differently, there is currently no scientific evidence to support this concept. An individual’s fat distribution, specifically around the midsection, is associate with certain health outcomes. For example, individuals with an ‘apple’ shaped […]
Food Expiration

Q. Do I need to throw out food as soon as the printed expiration...

A. Judith C. Thalheimer, RDN, LDN, managing editor of Tufts Health & Nutrition Letter, answers: “Those ‘sell by’ and ‘best by’ dates on packages are not actually expiration dates. Food product dating is voluntary and represents the manufacturer’s best guess as to when the product may no longer be at peak quality. Not being at […]

Q. I have decided to follow a vegan diet. Do I need to take...

A. Claire Cheng, a dietetic intern at the Tufts University Frances Stern Nutrition Center answers: “A vegan diet can be nutritious, environmentally friendly, and consistent with overall good health. Vegans do not consume any animal products, including eggs or dairy (and even honey). There are some key nutrients of concern for under-consumption for those following […]

Q. When buying a salad dressing, pasta sauce, or any other product, is it...

A. Hannah Cai, a dietetic intern at the Frances Stern Nutrition Center, answers. “It is important to limit sodium and added sugar intake for health. The Dietary Guidelines for Americans recommends limiting daily sodium intake to 2,300 milligrams (mg) and added sugar intake to less than 10 percent of total calories (approximately 50 grams of […]

Q. Can you tell me what biotin is and how much people need?

Q. Can you tell me what biotin is and how much people need?

Q. What is chlorella, and can it really do any of the things its...

Q. What is chlorella, and can it really do any of the things its advertised to do?

Q. I have high cholesterol and my doctor told me to eat more beans....

Q. I have high cholesterol and my doctor told me to eat more beans. Why?

Q. Which is safer, saccharin or stevia?

Q. Which is safer, saccharin or stevia?

Q. Are prunes high in vitamin K? I am on blood thinners and was...

Q. Are prunes high in vitamin K? I am on blood thinners and was told I need to limit vitamin K intake.

Q. Does the Tufts Health & Nutrition Letter accept any type of monetary or...

Q. Does the Tufts Health & Nutrition Letter accept any type of monetary or in-kind consideration from food or agricultural companies?