My daughters are 5 yrs old but wait is only 14 kg ..! please suggest what can i do.

A. dear parent, for healthy weight gain of your 5 years old daughters, give homemade balanced diet having variety of food groups. grains and millets 4 servings pulses legumes/egg non veg: 1-2 servings seasonal vegetables including green leafy vegetables: 1.5 serving fruits - 1 serving milk and milk products 500ml sugar 4 tsp oil 5 tsp control intake of processed and packaged foods.