Although growth hormones may be given to other farm animals such as cattle and sheep, their use in food fish is prohibited by the U.S. Food and Drug Administration (FDA).

Are fish injected with hormones?

Hormones are used in fish farming to increase fish production when one sex of a species has the capacity to grow bigger and faster than the other sex. The technique to increase fish production based on sexual dimorphism mostly uses estrogens and androgens.

Are there hormones in seafood?

Animals produce similar hormones to humans and thus animal-sourced foods common in the US diet, for example, dairy, meat, fish, and eggs, can contain hormones similar to those produced by humans.