Nutritional supplements
Learning Center
Wisdom tooth removal
If you don't have enough room in your mouth for wisdom teeth, or they're painful, infected or cause other dental problems, they may need to be removed.
Vitamin D toxicity: What if you get too much?
Understand the risks of too much vitamin D, including a toxic reaction.
Vitamin D deficiency
What are the risks of too little vitamin D?
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?
Prenatal vitamins: OK for women who aren't pregnant?
Prenatal vitamins: Why they might not be suitable if you're not pregnant.
Pituitary tumors
Learn more about the symptoms, causes and treatment of growths that develop in the pituitary gland.
Pap smear
A Pap smear, also called a Pap test, is used for cervical cancer screening. Learn how it's done and what the results might mean.
Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD)
Learn about the symptoms, diagnosis and treatments for this autoimmune disease that attacks nerve fibers in the body.
Multivitamins: Do young children need them?
Multivitamins: Are they good insurance for young children?
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