A varied diet can supply small contributions
NIH ODS lists about 10 micrograms of biotin in a cooked whole egg, 5 micrograms in three ounces of canned pink salmon and 2.6 micrograms in a quarter cup of roasted sunflower seeds. These are representative food values with specific portions. [1]
Biotin content can vary with food variety, season and processing. The table is useful for describing a diet, not guaranteeing the exact amount in every serving or selecting a beauty supplement. [1]
Raw egg whites introduce a different issue
Avidin in raw egg whites binds biotin and can interfere with absorption. Cooking denatures avidin, so the same binding concern should not be applied indiscriminately to cooked eggs. The form of the food matters. [1]
Food intake also differs from large supplemental exposure. ODS warns that supplemental biotin can distort certain laboratory results, even though a conventional toxicity upper limit has not been established. A high-dose pill should not be treated as simply a larger food serving. [1]
Keep missing data distinct from no nutrient
Imagine a food label does not list biotin. Since the nutrient is not routinely required on labels unless added, that absence cannot establish a zero contribution. Use a suitable food entry and mark the estimate rather than inventing precision.
| Finding | Interpretation |
|---|---|
| Specific cooked food | Use matching preparation |
| Listed portion | Keep the denominator |
| No biotin label entry | Content may still be present |
Sources for this article
- NIH ODS: Biotin
Source consulted: 2026-09-17. This is a reference resource, not a claim that we conducted the studies or tested a product.