Fluoride
FToday
30-day average. Months to years of reserve, so only a sustained trend is meaningful.
None of today's foods carried a value for Fluoride. That is a gap in the data, not a reading of zero.
What it is
Hardens tooth enamel against decay. Beneficial rather than strictly essential.
Reference intake
Your daily target, personalised to your age and sex.
- AI
- 4 mgmale_19_plus
- Upper limit
- 10 mgapplies to total
Excess during tooth development causes dental fluorosis — mottling of the enamel. The limit is much lower for young children for that reason.
Full write-up not finished
The reference intake above is real and cited — Fluoride is assessed against it exactly like any other nutrient. What is missing is the written panel: what it does in detail, what deficiency and excess look like, absorption, interactions, and food sources ranked against what you eat.
Entries live in data/nutrients.json. Filling this one in changes no code.
Sources
Last reviewed 2026-08-11