I think that the increase in fast food outlets in the world pose a serious problem to the world population. As fast food are not a healthy source of food and it often lead to many illness such as heart problem and obesity. If the fast food outlets still continue to increase, it will certainly affect the health of the rest of the world population.
Recently i also realised there is an increase in the number of fast food chains around. It is very bad for the health especially kids that are still growing up, they need the right amount of vitamins and nutrients for their age. I believe that if it still continue, more than half of the world population will be obese and have serious health problems.
yah i agree with nick and annabel saying, proliferation of fast food chain definitely will cause serious health problems to those who consume it most of the time. It needs to bring some changes to it before it is too late.