If I feed my whole family aha type meals, will it stunt the growth of the kids?

No. If by aha, you mean american heart association the answer is no. The issue is the amount of calories a child needs to sustain normal growth given by the rule: 1, 000 + agex 100 ex: a child age 5 needs 1, 500 cal daily. Articles have been published describing growth retardation in families were parents became obcessed with fat content of meals, but calorically depriving their children.