Then there are the pills which are natural. They can be the best oils for weight loss since they are made from natural ingredients. Since no chemical is used in these pills, they don't have any potential side effects as in case of the other category of weight loss pills. No matter which course you wish to take, remember to always consult your doctor. The pills you take should be from a reliable brand and must be taken in consultation with your doctor so that you get the best results.