Vitamin & Mineral Guide: Fluoride

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.