"Set a realistic RDI and focus on NUTRITION instead of "dieting". Get educated about what your body needs or you will end up with a weight problem all of your adult life."

Man that is SPOT ON advice. Weight loss and being healthy are about learning what your body needs, and giving it that, both in portion and in substance. Drops, pills, fad diets, will all just lead to fad weight loss.

Real sustainable weight loss is about making it a healthy lifestyle. That starts with whole foods, lean meat, fresh vegetables, leafy greens, and proper exercise at least 5 days per week (Yes 5 days per week). Healthy weight loss is created with a 500 calorie per day deficit over what you need. This site can give you a rough estimate of the calories your body needs to be at your target weight..that's a good place to start.

Oh the great low carb versus low cal debate again.

rapid initial weight loss with low carbs diets is not exceptional and is due mainly to water loss not fat loss, since you are depleting the glycogen reserves in your muscles and loosing all the water associated with it, of course as soon as you resume a normal diet that water will come back.
Fat loss will happen if you keep a consistent deficit no matter whether you eat low carbs or low proteins. Personally I tend to think a balanced diet is healthier but to each his own , if the low carbs works better for you long term than that is definetly a better option than staying overweight, good luck.