Fluoride
A mineral best known for dental health and bone strength.
Also known as: F • Sodium Fluoride • Stannous Fluoride
Overview
Fluoride is a mineral that strengthens tooth enamel and helps prevent dental cavities. It is added to most municipal water supplies and toothpastes. While beneficial for dental health, fluoride supplementation beyond dental products and fluoridated water is generally not recommended.
Key Benefits
Cavity Prevention
Fluoride strengthens tooth enamel and inhibits bacterial acid production in the mouth.
Bone Density
Fluoride is incorporated into bone mineral, potentially increasing bone density.
Dosage & How to Take
Adequate intake is 3 mg/day for women and 4 mg/day for men from all sources.
| Purpose | Dose | Notes |
|---|---|---|
| Dental health | Fluoridated water + toothpaste | Sufficient for most people |
| Supplementation | Generally not needed | Only if water is not fluoridated, under dental guidance |
Best Time to Take
Topical (toothpaste) twice daily.
With or Without Food
Not applicable for topical use.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Sodium Fluoride | High | Water fluoridation, supplements | Most common form. |
| Stannous Fluoride | High | Toothpaste | Also has antibacterial properties. |
Side Effects & Safety
Common
- Dental fluorosis (cosmetic, from excess in childhood)
Rare
- Skeletal fluorosis from chronic high intake
- GI upset from supplements
Contraindications
- Areas with naturally high fluoride in water
Interactions
Calcium can reduce fluoride absorption.
Scientific Research
Fluoride and dental caries prevention
Community water fluoridation reduces dental caries by approximately 25% across all age groups.
Food Sources
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.