I know how you feel. Several years ago I was grocery shopping with my youngest son who was super skinny and a teenager at the time. I had a cart stacked high to overflowing with groceries and a woman came up to me and said, "You should be ashamed of yourself." I asked why? "Look at him you don't feed him enough."
I told her that the groceries in the cart was only enough for 1 week. There was only my husband, son and I. Most of those groceries would be eaten by our son. If she thought she could do better she could have him for a month it would save me about $500 a month.
She didn't take me up on it.