9 Aug 2026
g6hG1
hi vicky it's summer holidays and usually when i'm at school we do quite a lot of sport n stuff which keeps me in shape, but recently i've been feeling nkt very happy with my body like all my life ive been quite small and skinny but now it looks like i have a double chin and a big belly and i don't know how to lose weight. and i did a bmi calculator for my age (13) and it said that i was healthy weight but i was leaning to overweight a bit. but i am a bit confused about that because when i went on the scale it also says which part is fat and which is muscle and i had low fat high muscle so how am i gonna lose weight?? and also i think its because i have to say i dont eat very healthy but when i was younger and i ate unhealthy nothing would happen and i was still skinny. also can you give ideas on how to talk to my mum about it xx
Show answer
Hi there ❤️
First of all, please be kind to yourself. What you're describing sounds a lot like what many girls experience during puberty.
During your teens, your body naturally changes shape. Your face can become a little fuller, your hips may widen, and your tummy may look rounder than it did when you were younger. These changes can feel strange because they often happen quite quickly, and sometimes your mind takes longer to adjust to your new body.
You mentioned that a BMI calculator said you were in the healthy weight range, and your scales showed low body fat and high muscle. That's actually really reassuring. Muscle weighs more than fat, so the number on the scales doesn't always tell the whole story. It sounds as though your body is growing and developing rather than there being a problem with your weight.
It's also very common to notice that your body responds differently to food as you get older. When you're younger, you grow at different rates, and as puberty starts, your body begins storing energy and developing into its adult shape.
Rather than focusing on losing weight, try focusing on healthy habits. Aim for three balanced meals a day, drink plenty of water, and find ways to stay active during the summer holidays, even just two 20 minute activities can make a huge difference. This doesn't have to mean exercising for hours. Walking, dancing in your bedroom, swimming, cycling, or meeting friends at the park all count!
If you'd like to talk to your mum, you could simply say:
"Mum, I've been feeling a bit worried about my body lately and I was wondering if we could talk about it. I'm finding it hard to know what's normal during puberty."
Most mums would much rather you shared your worries than kept them to yourself.
Remember, from everything you've said, it doesn't sound like you're "unhealthy" or that you need to go on a diet. It sounds like you're a 13-year-old whose body is growing exactly as it should. Why not check out the two blogs below for more advice on weight and a growing body.
Vicki ❤️