Organic pet food can now include synthetic taurine, organic mushrooms get clearer rules

The US Department of Agriculture has updated its organic rules for mushrooms and pet food. This means organic pet food manufacturers can now use synthetic taurine, and organic mushroom growers have clearer guidelines for their compost and spawn.

For years, organic pet food manufacturers faced a dilemma: taurine is essential for cat health, but the organic standard made it difficult to source naturally. This rule change removes that barrier, allowing them to meet nutritional needs while maintaining organic certification. It also clarifies long-standing ambiguities for organic mushroom producers, which could streamline their operations and expand the market for organic fungi.