IL feed mlo milk....

My IL feed mlo food that she not suppose to eat. They even wants to give mlo durian (thank God I was there). They feed her milo when I am not around. When I'm back I saw my baby mouth have chocolate stain. I ask did you all give her chocolate? But they say then only give Milo. Feed her with the spoon that my fil used and the same cup he use. He even put the biscuits in his Milo. My spouse and I had already say multiple time not to give her any food that we are eating. We even explain to they why. Milo too sweet for baby to drink. Yet it will cause heart disease and diabetes. I feel very unsafe when I'm not around when they look after my lo.