IAMS Senior lists nutrients and targeted benefits for older cats, including support for heart, digestion, joints and bones, immune health, skin and coat, and oral care. It highlights calcium and phosphorus for bone and joint support, vitamin E and extra antioxidants to support immunity, and L‑carnitine to help maintain a healthy weight.

Chicken is identified as the primary protein — it appears as the first ingredient and the product is marketed as a chicken-based dry food.

The food is formulated for senior cats: it’s labeled for the senior life stage and specifically noted for indoor and outdoor cats 11 years and older.

IAMS Senior is a dry kibble — a crunchy texture described as crunchy kibble, which the product notes can help reduce plaque buildup.

The product listing shows two bag sizes: a 7 lb. bag and a 16 lb. bag.

The formula cites essential nutrients — specifically calcium and phosphorus — to help nourish strong bones and healthy joints.

The formula includes L‑carnitine, which is highlighted as helping senior cats maintain a healthy weight.

The product details state it is made in the United States (Made in the USA).

Reviewers report strong palatability and age-appropriate nutritional benefits that support weight and coat condition; at least one reviewer also cited favorable pricing and value for keeping aging cats healthy.