Wow, I was just about to post this same thread except asking about my 4 month old. :wink:
I have started my little girl on baby food and rice cereal. I noticed that she was able to stop spitting things out of her mouth with her tongue and her appetite was larger. When those things happen maybe you should trya little rice cereal or a TINY amount of really strained baby food and see if the child is able to swallow. That is what I did. I kept trying every few days , at first I started with baby food on the tip of my finger to introduce her to the new texture and flavor, then a little more to see if she could handle it in her mouth. Finally I moved to the baby spoons.
When it comes to allergies though, in all honesty , you never know what your child is allergic to until they eat it. What I would recommend is trying only ONE food first. that way when you introduce another, you can tell if it gives your child a reaction or not. One food a week or two weeks and keep going form there. If there is no reaction on the first food, introduce another, and another.. just keep a reasonable amount of time between so you can see signs of a reaction if there is one.
Starting a baby too soon on foods I think is a bad thing to do. You can tell if a baby isnt ready for solids because babies have a natural reflex to stick thier tongue out to remove foreign objects from thier mouth to keep them from choking. The same will happen with food. When the reaction subsides ( usually between 3-6 months ) then you can start trying solids.
BUT noone knows your baby like you do so always use your best judgement. there is no black and white schedule for feeding your baby.
good luck.

:wink: