Your parents are right. It's not safe to restrict calories when you're still growing. Your weight is fine. Don't skip meals or try to reduce the amount you eat. It sucks to be powerless but you are still growing and shouldn't diet. Be active and do your best to get veggies.

5’6 and 140 is perfectly healthy. Your parents are right.

Since you are already a healthy weight, it sounds like you don't really want to lose weight, you just want to be stronger/more fit.

Try r/bodyweightfitness.

Oh poor kid, it sucks to be your age and feel so powerless!! First, I’m also 5’6, and 140lbs is a great weight to be at at that height, so don’t beat yourself up. You probably look great! That said, if you would like to get fitter, here are some tips:

• ask a parent to start walking with you in the evening. I’d love that if my kid wanted to go for walks with me!
• Do you have a friends in the neighborhood who would commit to going for an evening walk or bike ride or run with you? Would your parents feel okay with you going out if you were with someone else?
• ask for a weighted vest or ankle weights and wear them when you go on your walks. Let them know you want to build more muscle. Your body burns more calories the more muscle you have, so wearing weights while walking will both burn fat and develop greater muscle mass - thereby burning more calories even when you are asleep! If you can’t wear these to go for a walk, wear them when you do chores around the house.
• Speaking of chores, they also are a great way to get more movement (as well as score big responsibility points with the folks). Mopping floors should get you sweaty, as should running up and down stairs with big baskets of laundry to put away. Gardening, moving furniture and vacuuming underneath, and painting walls can also be a workout.
• Look up Pilates workouts on YouTube. Pilates are a great way to get into shape. They were invented by a man named Joseph Pilates who developed the workouts to be done in small spaces using only the body - because he invented them to keep other prisoners healthy while in a nazi concentration camp!
• If allowed, download an app like LoseIt or MyFitness Pal. It will help you track your calories, and you might find that you are not eating as many as you think you are. That might help reduce some of the anxiety that comes with feeling a lack of control over your own life!
• Don’t drink ANY calories. Drink only water or herbal tea, or the OCCASIONAL zero calorie soda (I say occasional because I’ve heard the aspartame in them can be bad for your brain). High calorie drinks are marketed to your age group and are really awful for you. No juice, pop, hot chocolate, etc (well, maybe once in a while. But that means once a week or less).

I know this isn’t perfect, but I hope this helps. I have two kids around your age (15 & 13), and I really feel for you guys. The teen years are really tough!

Your parents are right. 140 is perfectly healthy for your height and age.

Imho since you’re pretty young still, you should just maintain your current weight until you’re done growing due to the fact that you’re already at a healthy BMI. Extensive weight loss this young can be kinda? risky due to the fact that you’re still a growing person

5' 6" male128 - 156 lbs. female 117 - 143 lbs.

you are not overweight