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| Form | Bioavailability | Best For |
|---|---|---|
| Selenomethionine | High (90%+) | General supplementation — best absorbed and retained in body tissues |
| Selenium Yeast | High | Food-form selenium — contains multiple selenocompounds similar to dietary selenium |
| Sodium Selenite | Moderate | Inorganic form — used in many multivitamins but lower retention than organic forms |
Bioavailability: High (90%+). Best for: General supplementation — best absorbed and retained in body tissues.
Bioavailability: High. Best for: Food-form selenium — contains multiple selenocompounds similar to dietary selenium.
Bioavailability: Moderate. Best for: Inorganic form — used in many multivitamins but lower retention than organic forms.