From what I remember, you BD is a baby right? Some wont even look at greens until they're around 6-8 months old. As long as you suppliment the crix with calcium (and a ton of it. You can never seem to give them enough) and multi vitamins, he should be fine. my BD didn't even look at his veggies until he was about 8 months old. I'd wait a month, then offer him a small amount of veggies once a week until he eats them.