my son is 9years old .but his weight is over nearly 45Kg .Please suggest a helpful weighless diet plan

A. yes he is overweight for his age but check with his height too.... Also being over weight and obeses are different... if he easily get tired and lathergatic and have a tummy tire then he is obessed... If you want to reduce the obesity then reduce the fatty things in his food avoid junk food and juices Give him food to increase his stamina... give him fibre and protein rich food.. engage him in physical activity.,.. kids of this age needs atleast upto 3 hours of physical activity a day... give him toned milk instead of full cream milk... limit the dairy products upto 500 ml per day.... Give him small but frequent meal... Also check with your pediatrician regarding the same as he can better guide you through the same after proper examination and analysis as many a times baby gain weight due to the harmonal imbalance... So check with your pediatrician...