baby is eating properly playing a lot is an super active baby but weight is not been gaining? could be any issues?

A. Hai good morning !! Toddlers gain less weight,sometimes even weight remains for 2-3 months due to achieving physical milestones,engaging activities,playing active ,insufficient diet too. They require more protein,calcium rich foods . Milk,diary products,dals,,cerelac,egg,fruits,vegetables to meet the balanced nutrition. Include all seasonal fruits,vegetables,nut powder,dals,ghee,cheese,butter,curd,egg,meat helps in weight gain,muscle strength.