My cat is a big, white tom-cat who is big-boned, and seriously huge. He can stretch to 1 metre when he wants to - I'm not kidding! He isn't neutered and used to fight a lot in his heyday, but now spends most of his day sleeping. He is nearly 6 years old, and pretty inactive. We've been feeding him about 5 whiskas sachets (100 grams each) every day, because he won't leave us alone until he's full. He's been pretty happy with that amount, but I don't think he's obese as he is so big-boned. It may be that he has worms. Anyway, recently I read that seniors (He is counted as a senior as non-neutered, outdoor-going tomcats' life expectancy is about 5 years) should only get about 2 and a half sachets a day. So how much should I feed my massive puss? We've tried giving him less but he gets really unhappy and starts pining away in the kitchen. And then he goes out and hunts, bringing back dead pigeons and rats until we give him more cat food. So...what should I do? How much should I give him, and if less than 4-5 a day, how do I train him to not ask for more? We're worried that if he has worms, less food would leave him under-weight.