Healthy diets
Learning Center
Calcium supplements: When should they be taken?
Timing matters when taking these supplements. Learn how to take them.
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about links between this key vitamin and the widespread viral infection.
Can vitamins help prevent a heart attack?
Study results are mixed on whether vitamins can prevent heart disease. Find out more.
Cold and flu viruses: How long can they live outside the body?
Some viruses are more resilient than you may think. Learn more about how they spread and how to protect yourself.
Colon cancer screening: At what age can you stop?
Some groups recommend people over 75 may consider stopping colon cancer screening. Not everyone agrees. Learn about your colon cancer screening options.
Coronavirus: What is it and how can I protect myself?
Coronavirus disease 2019 (COVID-19) is caused by a virus that spreads between people. Find out how to protect yourself and those close to you.
Dental floss vs. water flosser: Which is better?
Cleaning between your teeth every day is an important part of good oral health.
Denture care: How do I clean dentures?
Follow these best practices to keep your removable partial or full dentures clean, free from stains and comfortable.
Did the definition of Alzheimer's disease change?
What the change in the research definition of Alzheimer's disease means for you.
Diuretics and gout: What's the connection?
This treatment for high blood pressure can raise the risk of arthritis. Find out why and what you can do about it.
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