That mother wants to ruin the child's life. Parents are supposed to be guardians of their kids. She thinks she is showing him love by letting him eat as he wants. The boy is already getting addicted to food, and with time, he won't be able to stop the cravings... Obesity isn't healthy; it comes with a lot of ailments.
It's not healthy ooo... people just have to learn. The woman never takes any advice calmly, she'll take it as an insult to her person. It's just crazy!