Health drink for kids. Or continue!

My daughter is 2.6 yrs old. Active and smart. She's been a slow weight gainer always on the average side. Her father is very tall 6.2 so she's tall for her age. After 1.5 yrs she started increasing weight and nw she's 16kgs. Which is on the higher side fr her age. I'm a little worried about it. Though she's super active still some friends are warning me about overweight issues in children. I recently introduced pediatrician suggested enfagrow to her diet and by 1 month she's gained 1.5kgs before that she was 15kilos ! I asked the pediatrician should I stop giving her this as she's gaining weight for which he said it's completely fine and continue giving. Now do I need to worry about her weight and stop enfagrow or continue