All nutrients
Iodine
Imineraltrace-mineralmeasured in mcg
Today
30-day average. Months to years of reserve, so only a sustained trend is meaningful.
117 mcg / 150 mcg78%
What it is
The thyroid cannot make its hormones without it, and there is no substitute.
Reference intake
Your daily target, personalised to your age and sex.
- RDA
- 150 mcgmale_19_plus
- Upper limit
- 1100 mcgapplies to total
Both too little and too much cause thyroid dysfunction, which is unusual — for most nutrients only one end of the range is a problem.
Full write-up not finished
The reference intake above is real and cited — Iodine 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