Hello First of all let me know why you wanna have supplemnts? Do u have any deficiencies or feel like anything such ??

At this age and untill you're having any deficiencies there is no need to have multivitamins or omega 3 as a supplements. Eat healthy balanced diet with variable food items of all the groups to avail all the nutritional value required by our body. We can get all the vitamins, minerals and fatty acids from different foods those can not be produced in our body.