Necessary for strong bones and teeth (especially tooth enamel).
How Much: 4 mg for men; 3 mg for women.
Too Much: UL = 10 mg daily: mottled and brown teeth.
Too Little: Tooth decay.
Foods: Fluoridated water, tea, and canned salmon and sardines (with bones.)
Interactions: Calcium supplements and calcium- and aluminum-containing antacids.
Research Note: Doesn’t prevent osteoporosis. Safety concerns related to joint pain and stress fractures from taking extremely high doses.
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