I'm a 13 year old female, and I have always been really skinny because of a high metablaism, my mum and brother are the same. But I eat like a pig,cause I snack all the time, and eat fizzy drinks and stuff, and not much fruit, but hardly ever put on weight! I am currently 7 stone, and am 5ft 2 (about). Am I going to be fat when I'm older if I carry on?
Of course not. If your metabolism does slow then you would just need to change your diet slightly but being skinny now means that you will probably be skinny through out your life. I am 13 and i weigh 7:12.5 and i have always been slightly under weight and i eat so much junk food that it's unbelievable. Don't worry - you wont lose your shape.
xx