- A calorie dense nutritional supplement such as nutrical:http://www.1800petmeds.com/Nutri+Cal-prod1340.html- Another option would be baby food. If you are going to try this, please purchase baby food that does not have any ingredients such as garlic or onion.Many baby foods now will only have the ingredients of the item and water...for example chicken and water. But they will not have any other salts or seasonings. This is what you need. Just chicken and water or beef and water for example.
Regarding other therapy to speak to your veterinarian about, I would recommend an appetite stimlant called cyproheptadine.