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Find out what vitamin E is and what it does in your body, what foods provide it, and about vitamin E supplements.

Find out what black cohosh is,what it does in your body, and about black cohosh supplements.

Find out what vitamin K is and what it does in your body, what foods provide it, and about vitamin K supplements.

Find out what vitamin D is and what it does in your body, what foods provide it, and about vitamin D supplements.

Find out what vitamin C is and what it does in your body, what foods provide it, and about vitamin C supplements.

Find out what thiamin is and what it does in your body, what foods provide it, and about thiamin supplements.

Find out what choline is and what it does in your body, what foods provide it, and about choline supplements.

Recommended intakes and sources of magnesium, effects of deficiency and excess, groups at risk of inadequacy, and interactions with medications.