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Vitamins & Supplements

Vitamin D Supplementation Does Not Help Depressed Older Adults

A randomized controlled intervention trial published recently in the American Journal of Clinical Nutrition found that supplementation with vitamin D had no significant effect on depressive symptoms or physical functioning in older persons with low vitamin D status.

Folic Acid Overload?

The B vitamin folate (B9) is found naturally in a variety of foods including vegetables (especially dark leafy greens), fruits and fruit juices, nuts, beans, peas, seafood, eggs, dairy products, meat, poultry, and whole grains.

Q. You seem to write a lot about supplements not being necessary. Aren’t multivitamins...

Q. You seem to write a lot about supplements not being necessary. Arent multivitamins a good thing?

Some Supplement Ingredients Not Lawful

Image © Waldemarus | Getty Images The FDA recently unveiled the Dietary Supplement Ingredient Advisory List, designed to alert consumers to unlawful ingredients identified in products marketed as dietary supplements. Unlike drug companies, supplement manufacturers do not need to prove that a product is safe or effective before marketing it. Under current law, dietary supplements […]

Q. What is the most recent thinking on biotin?

Q. What is the most recent thinking on biotin?

Vitamin K: Beyond Blood Clotting

Vitamin K was named for its role in coagulation (koagulation in German), but it turns out this important vitamin has significant roles beyond blood clotting. Work by Tufts researchers and others shows that vitamin K may be an important factor in bone health, cardiovascular health, and type 2 diabetes.

Q. Why dont I see vitamin A on my package of ready-to-steam frozen sweet...

Q. Why dont I see vitamin A on my package of ready-to-steam frozen sweet potatoes?

Q. I see the term B vitamins a lot. Why is this plural, when...

I see the term B vitamins a lot. Why is this plural, when other vitamins, like vitamin C, are not?

DRI Update for Sodium and Potassium

An expert committee of the National Academies of Sciences, Engineering, and Medicine, which included Alice H. Lichtenstein, DSc, Gershoff Professor at the Friedman School of Nutrition Science and Policy and Executive Editor of Tufts Health & Nutrition Letter, recently reviewed the scientific evidence in order to update the official U.S. and Canadian Dietary Reference Intakes (DRIs) for sodium and potassium.

Magnesium and Migraine

The International Headache Society (IHS) defines migraine as a headache disorder with recurrent attacks (at least five) that last from 4 to 72 hours, are associated with nausea and/or sensitivity to light and sound, and also have at least two of four other characteristics including: pain that is of moderate or severe intensity; throbbing or pulsing; affects only one side of the head; or is worsened by routine activity such as walking. According to the 2017 Global Burden of Disease Study, migraine is a major cause of disability worldwide.