This food (made in the USA also known as K/D) was prescribed for my 16 years old female cat Cucumella when she was diagnosed with a renal problem. After consulting a second veterinarian it resultded that what she had was cancer in one of her lungs. I have 6 tins of this food good until january 2019 and wonder if I can offer it to my 4 years old female cat or whether it is meant only for cats with renal problems.