Optima 365 for CATS 16 oz OPTIMA 365 for Cats contains an essential 10:1 ratio of Omega 6 and Omega 3 fatty acids in a veterinary-exclusive formula that includes serine, proline, taurine, antioxidants, vitamins and minerals Most anti-shedding products are high in fat, but OPTIMA 365 contains 33 percent fewer calories than competitive brands, which is significant considering the significant numbers of obese dogs and cats It has been determined that omega fatty acids need to be consumed in an optimum ratio for ideal health benefits.