Nutritional supplements
Learning Center
Craving and chewing ice: A sign of anemia?
Craving and chewing ice (pagophagia) is often associated with iron deficiency with or without anemia.
Flu symptoms: Should I see my doctor?
See a healthcare professional if you are at high risk for complications from flu.
White patch on skin: A cause for concern?
A small white patch on skin may have several causes, including eczema, psoriasis and vitiligo.
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?
Air travel during pregnancy: Is it safe?
Consider these guidelines if you need to fly while you're pregnant.
Vitamin D toxicity: What if you get too much?
Understand the risks of too much vitamin D, including a toxic reaction.
Multiple sclerosis: Can it cause seizures?
Seizures occur more often in people with multiple sclerosis than in the general population.
Pulse pressure: An indicator of heart health?
Pulse pressure may be a strong predictor of heart problems, especially for older adults.
Tailbone pain: How can I relieve it?
Tailbone pain can have many causes and treatments.
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