Weight loss supplements have always been very popular among people who wonder how to lose weight quickly. Considering its demand, several types of weight loss pills and supplements have been introduced in the market. The list includes metabolism boosters, fat burners, appetite suppressants and fat blockers. Irrespective of how tempting the probable results of these pills may appear to be, the fact is that there is very little evidence to support their miraculous claims. People who wish to choose these kinds of supplements instead of following a healthy diet for weigh loss need to be aware that it can lead to granting oneself a psychological/moral license for self-indulgence. This is best explained by the psychological theory of moral licensing. According to this theory, a perceived positive health behaviour can cause the concerned person to grant himself the freedom to follow a less healthy diet. An example of this could be the case of a gym-goer who allows himself to indulge in unheal...