E.F.
Both my babies thinned out when they began weening too. It's totally normal so don't worry. Never force, cajol or argue about food with a kid at any age. You decide when and what but the kid always decides how much, if any. If he doesn't want to eat and he seems otherwise fine then please don't waste your energy worrying about it. A child who is offered food will never starve. If he's fussy like he's hungry but still won't eat consider things like a teething, sore throat, ear infection, or being overly tired. There have been times when my child would only eat after a dose of tylenol kicked in. Best of luck and I recommend the Super Baby Food diet which outlines which foods to introduce when and what constitutes a heathy diet. Also, recipes and how to make your own baby and toddler food.