I wouldnt worry too much about him not eating .... he will when he is really hungry.
You still feeding them or bottle feeding as i just offer milk .... i have a 16mth old and he did the same thing .... and then one morning he gobbled down weetbix and yoghurt and back to normal... and just recently he had a thing for saladas and wouldnt eat anything else. Seriously dont worry .... he will be fine it is a phase there lots of phases with kids lol