Is drinking coffee associated with prostate cancer risk? Find out what a recent study suggests in our updated answer to the question: Does drinking coffee increase or decrease the risk of cancer? Can it slow cancer progression?
A marker of low vitamin K levels has been linked to a higher risk of death in people with COVID-19, according to a new study. Get the details in the COVID-19 section of our Vitamin K Supplements Review.
Does high-dose vitamin C help in people with severe COVID-19? See what a new study showed in the COVID-19 section of our Vitamin C Supplements Review.
Nicotinamide riboside, a form of niacin, has been promoted to slow aging, partially based on the belief that it raises NAD+ levels that fall with age. A new study raises doubts about this. Get the details in the Niacin section of our B Vitamin Supplement Review. Also, learn about a concern with taking too much nicotinamide riboside.
Many preliminary studies have linked adequate vitamin D levels with reduced risk of COVID-19 or less severe disease. However, a recent study did not find a benefit among people who had been supplementing with amounts generally above the recommended daily intake requirement for vitamin D. See the details in the COVID-19 section of our Vitamin D Supplements Review. Also, see our Top Picks for vitamin D.
Research published this week suggests a link between a moderate coffee consumption and reduced risk of cardiovascular disease and death. Get the details in our article about Coffee and Heart Health.
Ashwagandha may decrease the effectiveness of immunosuppressant drugs and, according to a recent case report, may trigger transplant rejection. Get the details in the Concerns and Cautions section of the Ashwagandha Supplements Review. The section includes information about other potential side effects of ashwagandha.