What it does
The NIH consumer sheet says the body needs biotin to turn fats, carbohydrates, and proteins into energy.
What research can and cannot say
The sheet is the source for what is known about biotin supplements. This page does not add a use the sheet does not state.
Biotin on a label is not a personal result. This page stays with what the cited sheet says biotin is used for.
Forms and label reading
Labels usually say biotin. Read the mcg per serving. A high labeled amount is still a label fact, not a personal dose.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Amount and upper limit
Adequate intake. The NIH sheet lists an adequate intake of 30 mcg a day for adults. It does not list a recommended dietary allowance. Cited sheet
Upper limit. The sheet does not set an upper limit for biotin. Cited sheet
Safety
The sheet warns that high biotin intakes can interfere with some lab tests, including thyroid and troponin tests. That warning is on this page.
Food sources
The sheet names meat, eggs, fish, seeds, nuts, and some vegetables.
