What supplement or multivitamin should i give to my son 1yo? sometimes he refuse to eat

No such product: I do not know of any product that would stimulate your son to eat. Many mothers and even fathers can really get frustrated in these months of child development. Your pediatrician may have some good ideas, and your girlfriends and other family members may have lots of tricks they learned to maintain nutrition in a picky toddler's diet.

? protein powder: Hopefully your son is growing properly- is he is the normal height and weight range? It is not unusual for children to occ. Not eat. Supplements aren't as good as a healthy diet but consider something like k-pax protein powder from orthomolecular products, an organic rice protein powder that has vitamins ; minerals mixed in. A half scoop in milk, rice milk, hemp milk, water or juice could help.