good nutrition because they are growing and developing but they don't need supplements actually ok delfina boosters reverse writes that her daughter is a vegan and need any food supplement there are some nutrients that are critical for vagrancy so you really need to select nutrients and plan your own nutrition or your diet very carefully there's one nutrients and as vitamin b 12 which you need to supplement because the amounts in the bioavailability invading food such as i'll give is just not high enough to meet your requirements so that is something you need to supplement. does a lot of spots he says and he wants to build up his muscles and wants to know if he needs some vitamin requirements if you want to build up muscle then he needs more protein you can meet those needs within all the nutrition you don't have to supplement protein whether there were quiet ones for vitamin c. it's actually higher it's not. really know it probably depends on the type of sports in the training face and it shouldn't be supplemented without consulting so it's something you have to look at individually and y