I think it's OK to spend more on health related items. If it doesn't fit into your budget, I would consider tweaking other parts of your budget before tweaking the food part. Eating right is GREAT investment, even if it is more expensive than eating processed junk.
Last weekend I made a list of the good foods I eat that aren't produce (like whole grain bread, organic milk, etc.) and tried to find coupons online. I saved about $5 on my last trip to the grocer.
