Hi there, I'm new to the forum and can see there's a lot of valuable information and knowledgeable people here so I'm asking my question. For several months we have been trying to put weight on our two cats. I feel that as both our cats are "underweight" it is a food thing rather than a health thing... they are 14 years and so senior cats. We've changed from a mix of whiskas and go-cat which they had for years to Royal Canin Stage 2 High Cal but they don't like it and won't eat it. They don't eat human food as it always makes one of them sick (I think it's too rich). So my question is does anyone have any tried and tested suggestions as i'm a bit of loss when I look at all the different options on the shelves. Any help would be very much appreciated.