According to the United States Federal Register,2025May519, the United States Food and Drug Administration (FDA) issuedDocument No. 2025-08864, revising the regulations on food additives allowed in animal feed and drinking water, and approving the use of zinc-L-.selenium methionine (zinc L-selenomethionine) as a nutritional source of selenium in broiler chicken feed.

It is understood that this application is submitted byZinpro Corpand the regulation came into effect onMay192025, and the opposition needs to be submitted beforeJune182025.