I think it is a phase and he will eat when he is hungry. I know it is worrying but there is not a lot you can do other than provide him with tasty, easy to eat finger food and not to react when he feeds the dog (it is funny, but you are probably not laughing!). Keep doggy outside and even if he throws it on the ground any reaction from you (anger, laughter etc) will make it a game for him. what are you giving him to eat? Try toast fingers (spread with peanut paste or mashed banana or avocado etc), cheese cubes, pieces of fruit and slighly cooked vegies, hard boiled egg cut in quarters, crackers with topping that sticks (like with the toast), pikelets (add grated vegies to them), zuchini slice, fritatta, baked potato wedges, rissoles, healthy savoury muffins, weetbix spread with butter and topping etc There are other great recipes/food ideas in the breastfeeding, bottlefeeding and solids forum.