When can I feed them a worm or some veggies?

[beach babies]

I've got three week old chicks and I'm wonderng when it would be okay to feed them a worm or two, or try them out with some veggie scraps. Are they too young for that still? (I found some awesome wroms in my compost today, but I'm a little afraid the chicks could choke).

 

[classicsredone]

If they can swallow it easily and have grit available, they're old enough.