DS is 6 weeks old and has been on aptimial, he never seems satisfied with a feed, (or at anytime that is, never contented )we changed to the Hungry version as he was always looking for more, but he still only goes 2- 3 hours before he wants more, im thinking of changing him to the sma one to see if that makes any difference , any advice is welcomed as i really dont know what to do with him any more