Here is a high calorie nutritional supplement that helps cats recover from illnesses. The Under the Weather Ready Cal for cats has 10 vitamins, 7 minerals and Omega fatty acids. It is designed to boost your cat’s energy, promote weight gain, and stimulate her appetite. It comes in a measured tube, so your pet gets the right dose each time.
You can get this for dogs and small kittens too. Simply give your cat 1 teaspoon per 10lbs of bodyweight daily to get results.