Nutritional supplements
Learning Center
Child growth: Can you predict adult height?
Concerned about your child's growth? Find out how you can estimate your child's adult height.
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.
Concussion in children: What are the symptoms?
Whether your child's concussion is mild or severe, allow time to recover.
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 braces: When to start
Dental braces are recommended for many children — When is the best time to start?
Dental floss vs. water flosser: Which is better?
Cleaning between your teeth every day is an important part of good oral health.
Do the benefits of vitamin C include improved mood?
You know vitamin C helps fight the common cold. But did you know that vitamin C might also help improve your mood?
Does honey offer sweet relief for allergies?
You've probably heard the buzz about honey for allergies — but does this sweet remedy deliver?
Does sunscreen expire?
Wondering whether sunscreen expires? Get the facts about how long sunscreen lasts.
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