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Diet and exercise are both good ways to lose weight, but something like crunches probably aren't the best idea to lose weight without some type of cardio. If you just want to lose weight, I would suggest at least 10 or 15 minutes of cardio exercise a day, whether it be running, doing jumping jacks, whatever.. As long as it gets your heart pumping. In the lines of crunches, if you are specifically trying to target your stomach and midsection, do as many crunches as you can until it starts to burn, and then do about half as many more. If you don't feel the burn, you're not helping yourself any (no pain, no gain - right?). Don't just do straight crunches, either, try situps, and even pushups if possible to work more of your torso. Every person is different, so I can't say whether or not crunches will even help, at 12, your body may not be ready for muscle development, so you won't have a 6 pack, but anything that burns calories will help you lose weight. Just eat healthy, and do a good amount of cardio. Try doing some crunches before AND after as a warm up and a cool down. Oh and don't forget to stretch! It sounds silly, but you will be happy in the morning when you aren't half as sore as you could have been!

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14y ago
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12y ago

first, write down everything you eat and their calories,and add it up at the end of the day. you can reduce it by a few hundred to reduce weight gain but if you want to lose 1 lb a week, 1,630 calories a day would do it.

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13y ago

It all depends on how many calories you take in a day. A normal 12 year old girl should have to take in about 1200 calories a day. Balance that with just the right amount of exercise and you should be fine. 12 year old girls and boys regularly shouldn't have to lose any weight at this age.

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8y ago


It depends on your height and other factors such as, do you intend to include exercise and what type of dietary changes do you intend to make and commitment.

It works best if a 12-year-old loses weight with parental or medical supervision.

This is the age where bone density and other physical developments are taking place, and a poor diet or minimal intake of nutrients could cause long lasting effects that will carry through to adulthood.

In addition, counting carbohydrates, rather than severely restricting calories, will avoid slowing down your metabolism and, by that, achieve healthy lasting weight loss.

For in-depth information about the best diet and lifestyleto reduce or prevent obesity in children or teenagers, use the page link given below.

Best ways for a 12-years-old to lose weight

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10y ago

i am 14 years boy . please give steps to doing crunches . how many crunches i could do in a day and how many after my ap comes out ?

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Q: How long does it take a 12-year-old to lose weight?
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