FDA Dumps Weird Lignin Feed for Dogs, Cows, and Salmon?
Published Date: 9/10/2026
Proposed Rule
Summary
The Food and Drug Administration (FDA or we) is announcing the withdrawal, without prejudice to a future filing, of a food additive petition (FAP 2323) proposing that the food additive regulations be amended to provide for the safe use of hydrolyzed lignin as a source of neutral detergent soluble fiber in food for broiler chickens, laying hens, turkeys, growing swine, sows, lactating dairy cows, beef cattle, sheep, goats, salmonids, and adult dogs at no more than 1% of the food on a weight basis or 10 kilograms per metric ton of food.
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