Re: won't eat at 14 months!
Just keep offering a variety of healthy solids and model good eating habits (like sit-down family meals). That's all you can do. You can't force a kid to eat- nor should you. It's very normal for a baby to still get most of his nutrition from breastmilk until he's well over a year old. If your LO is intensifying his demand after being a good eater when it comes to solids, my guess is that he's either teething or going through a new developmental stage. Good news is that those things will pass.
Hang in there, mama!