When my chicks hatched I gave them AVC water with garlic in it to boost their immunity. I also gave them a clump of violets to nibble and peck thru the dirt. Dirt provides a natural grit for them. I give my birds strawberries, brocolli, melon rinds (which are probably everyone's favorite), violets and any weeds out of the garden. BUTTERCUPS, TOMATOES, POTATOES, AVACADO, & NIGHTSHADE ARE POISONOUS TO CHICKENS. @mymilliefleur has an article about weeds and herbs to give chicks and chickens. You should read it, very helpful.