Before deciding whether you want to vomit to look better on the outside, by fucking up what's on the inside, read this:

Repeated vomiting will slow down your metabolism, making it harder to lose weight. Eventually, anorexia and bulimia will demineralize teeth. Your teeth may become sensitive to heat, cold, and acids. Eventually, your teeth may severely decay, erode away from fillings, and finally fall out. Sexy, huh?

Your blood potassium levels can drop significantly with regular vomiting or use of certain diuretics. This can disturb your heart's rhythm and even produce sudden death.

Salivary glands may swell because of infection and irritation from the vomit. You may at some point suffer from stomach ulcers and bleeding and tears in your esophagus. Constipation may result from frequent laxative use.

When bulimic episodes occur over time, a sequence of chronic illnesses can occur affecting your heart, liver, gastrointestinal tract, and/or neurologic complications.

The way to lose weight is through healthy diet and exercise. Eat 4-6 SMALL meals a day, consisting of lean meats, whole-grain starches, fruits and vegetables. Set up your plate so 1/4 is meat, 1/4 is starch, 1/2 is fruit and veggies, and there is minimal fat.

If you do this as well as drink 8 glasses of water a day and exercise for 30 min a day a few times a week, you will see healthy results.

Good luck.