Supplement · Mineral
Ferrous bisglycinate
A mineral needed to make blood and carry oxygen. Reviews, side effects and research on iron from parents of autistic and ADHD kids.
3 reviews · 1 languages · collected October 2026
The reviews so far were written by parents in Japan (3).
Of 3 reviews, 0 said things got better and 0 said they got worse.
No one reported things getting worse
Only 3 reviews so far, so treat the percentages as a rough guide.
Not enough reviews yet
3
Boy · ADHD & autism
🇯🇵 Japan · Japanese · Jun 12, 2021
A parent gave their son, who has ADHD and autism, iron as part of a nutrient supplement regimen for about a year. They saw no clear change in his distractibility or slow pace.
Child
🇯🇵 Japan · Japanese · Mar 7, 2019
A child with developmental concerns started taking an iron supplement together with the mother. The child said they felt smarter, but the parent thinks it is mostly psychological and is continuing anyway.
Boy · ADHD & autism
🇯🇵 Japan · Japanese · Dec 4, 2021
A parent of a young elementary-school boy with ADHD and autism has been giving heme iron steadily. His iron-storage marker actually dipped and behavior showed no major improvement.
Helps only when low
36 PubMed papers · 124 participants
Evidence that iron eases ADHD symptoms is still weak. It may help only children who are low in iron, and an overdose can be dangerous.
Key studiesPMID 38343311PMID 40945632PMID 29335588
Read this apart from parent experience. Studies average many children, so they may not match your child.
Too much iron can be dangerous. Keep it out of children's reach.
None of the 3 reviews we collected mention side effects. That doesn't mean there are none.
Call emergency services or go to the ER right away if your child
If an unusual change lasts more than a few days, tell your child's doctor.
We only pick posts in which parents describe trying something with their own child, from public parent forums and personal blogs. We don't copy the posts: we pull out the result, duration and side effects, write a short summary, and link every review to its original. These are parents who chose to write, so the numbers may differ from the real picture.
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