A sulfur-containing amino acid concentrated in heart, eye, and muscle tissue.
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General reference, not veterinary advice. Dose, breed, and existing conditions change the answer, so talk to your vet before changing what your pet eats. Think we got this wrong? Tell us and we log it publicly.
Lowest scores first. Its presence here is not what drove those scores.
68 more scored products list this ingredient. Showing the 24 lowest-scoring.