manage a cat's overactive thyroid and the only clinically proven nutrition to decrease thyroid hormone production in 3 weeks when fed as the sole source of nutrition. For best results, consistent and exclusive long-term feeding of this product is critical for efficacy of the product's benefits. This canned food is made with chicken and has a ground texture in a light gravy with a great taste your cat will love. Dry and canned formulas can be mixed or fed concurrently. How it helps: Nutrition shown to decrease thyroid hormone (T4) production in 3 weeks Supports kidney, heart & urinary health Helps maintain lean muscle mass Visible improvement in skin & coat S+OXSHIELD: Formulated to promote a urinary environment that reduces the risk of developing struvite & calcium oxalate crystals How it works: Limited iodine Controlled phosphorus and reduced sodium with omega-3 fatty acids from fish oil High levels of L-carnitine to support a healthy body condition Omega-6 fatty acids to promote a healthy skin & coat