I've been trying to get weight back on my Jester for a couple of months now. His weight at his last appointment in early December was 9 pounds - pre-diagnosis weight in summer of 2016 was about 12.5. Mostly I've been pushing Jester to eat at least 2 cans of 5.5 ounce cat food a day - preferably more. But I'd like to explore some kind of supplement that would add calories without so much emphasis on volume. Sometimes I feel like Jester is almost weary of me pushing so much food at him.... I've tried "flavor enhancers" but they don't seem to appeal to Jester. In fact, when I used fortiflora, he turned his nose up at the food. (Bastian, my other health-issue kitty seems to love it though.) I'd almost rather some kind of additive to his current foods that doesn't change the flavor. Since he's generally happy eating his regular foods and I can't get him to eat a lot of low carb stuff, it seems logical to do something with that does work. Has anyone ever tried any supplements such as I'm describing? I found one on Amazon - is anyone familiar with this product? https://www.amazon.com/Tomlyn-Calorie-Nutritional-Kittens-Nutri-Cal/dp/B00WKO46JA/ The kitten version is fish flavored, adult is malt flavored. Is there a way to find or figure out if it's safe for diabetic cats? Is there an alternative anyone knows about? Thoughts and other suggestions?