If you combine an intense workout with little to no protein or other nutrients you will likely get dizzy and possibly pass out. If you keep at it long enough you could make yourself very sick. The only tried and true way to loose weight is to work hard. Get up early for a jog or walk. When you get home go to the gym. Be sure to eat nutrient rich food so your body has the energy for a workout the next day.

I’m not a doctor or nutritionist and don’t know what is appropriate for a 13 year old to eat, or how much you should work out. I’d recommend that you call your doctor’s office and let them know you’d like to lose weight and would like your doctors approval before you begin. If you work with the people who know your body best you can identify your goals and plan a diet to suit your needs.

Good luck, and please let us know how you make out.

I haven’t any problem really other than feeling floaty from time to time. I think it’s because daily routines as a student. But after one and a half month, i’ve actually lost about more than ten pounds.

Watermelons HELPED me in my diet. But it was NOT the very reason why i’ve lost weight.

I’m still keeping up with my diet, though its hard not to slack,hehe.

Its all about calculations, you have to think and balance the diet out (its like building a house).THINK

but it is a good fruit to have. the only one i have really.

I’d just like to add that as a person who is most commonly known as a raw foodist, or a frugivore, I’ve tried a lot of fruit mono diets. I haven’t done watermelon myself but I think the main problem here is not eating enough of it. I’ve done banana’s only for 10 days and oranges only for 5 days. This is incredibly healthy as a cleanse, I would hesitate to say one should go on it for weight loss. You will lose weight even if you eat enough fruit to make up 3000 calories a day as your body has much more ease in digestion and thus time to repair and renew. However, people should be cautioned as it is easy to put the weight back on when you go back to eating so-called ‘normal’ foods like grains and dairy. If you are going to try this you should do your research. Look into various websites on the raw food movement eg 30 bananasaday and you will find plenty of information. A pure fruit diet is really good for you, but you will experience detox symptoms because your body is cleansing. So don’t expect to feel good right away. Also you should take care when breaking this diet and not binge on healthy foods because you’re calorie deprived. So make sure you eat enough! I weighed about 54 and lost about 5kgs eating around 20 bananas a day or more (with exercise) and have maintained that weight loss. However, my purpose in doing this was as a cleanse and frankly I’m keen to do it again as I’ve never felt better. I am a vegan though and already by most people’s standards incredibly healthy so not everyone will have the same experience. The most important thing is that you research it properly as you could actually experience weight gain!

Depending on how your body handles the change you may end up gaining less weight back than you lost, for a net loss in weight. It is also possible that after three days your body will have entered starvation mode and will be reserving as much food as possible. This could result in a weight gain after you get off the diet.

If I wanted to lose weight in 3 days I’d excercise more. I’d probably use every hour of daylight to be outside doing something active. If you really push yourself, and maybe even get a personal trainer for a few hours to point you in the right direction it is amazing what you can do with excercise. As always it all depends on your specific body, so I’d suggest speaking with your doctor before doing anything.