Question About Couponing

Hey there, I am trying to get into couponing because I am a single dad of two kids and in this economy, I am noticing that it is getting quite heavy on my wallet. So I started looking in to couponing, but it seems like the only coupons that you get are usually for cleaning supplies, snack foods and things like that.

My question is, is there a way for "extreme" couponing for healthier food items?