If he will drink juice you could try a smoothie with supplements in it, that's what my kids get every morning and when they get home from school, no questions asked. No other snacks until they finish their smoothie, with Udo's DHA Oil,Vit E oil, Vit B6, probiotic powder, and a little bit of protein powder, mixed with a few frozen strawberries, a few slices of banana and a 2 oz orange juice.