Basic Instincts Cat Salmon formula is a big hit in the feline community! Cats love the taste. For centuries, coastal cats have been eating fish as a staple part of their diet. Salmon is a great source for Omega 3 & 6 essential fatty acids which can help keep your cats fur healthy and shiny. The whole coho salmon is used in this formula, along with lamb organ meats. This is not a complete diet formula and therefore should not be fed more than a couple of times a week.