My 1 year old is TERRIBLE with food - it literally takes over an hour until he has a reasonable amount. I don't force or anything; it's just that he keeps the food in his mouth and doesn't swallow for ages! Eventually he either swallows it, or spits it right back out I know it's not the taste or texture because he does this with all foods, and all types of textures. He rarely fights away the food - if he does, I don't force him. He's just so slow. He chews, but very slowly. How can I speed him up?