Nutritional supplements
Learning Center
Want a strong brain? Exercise!
Regular exercise strengthens and tones your brain just as it does your body.
What is wheatgrass? Why is it in my drink?
Wheatgrass is a popular addition to smoothies and other drinks. While it's a rich source of nutrients, it's not a disease cure-all.
Calcium supplements: Do men need them?
Do guys need calcium supplements for bone health?
Improve brain health with the MIND diet
The MIND diet is a smart way of eating for both your brain and your overall health. Here's how to do it.
How to focus on the present for long-term progress
Sometimes, the big picture can make your head spin. Here's how to let go of worries about the future for a minute and set yourself up for real progress.
Pros and cons of taking a magnesium supplement
Magnesium supplements are popular but not risk-free. Fortunately food sources are easy to add to your diet.
Henoch-Schonlein purpura
Learn about the symptoms, causes and treatment of this blood vessel disease, also called IgA vasculitis, that causes a purplish rash on the lower legs.
Keloid scar
Learn about how to prevent, remove or flatten these problematic raised scars that form over scars from acne, tattoos, piercing and other injuries.
Too much vitamin C: Is it harmful?
Vitamin C is an essential nutrient, but too much carries its own risks.
Probiotics and prebiotics: What you should know
Probiotics are foods or supplements that contain 'good' bacteria that might help treat or prevent illness. Should they be part of your diet?
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