Fast food problem to health and obesity

Fast food problem to health and obesity

write a paper on the problems and the diseases that fast food cause to people. the types of food , meat that can harm people.how is fast food effecting obesity?. is the fast food companies to blame? is it safe for people to eat to fast food?write about disadvantages about fast food.
The sources must be only from a database, no website sources.
i need the copy of sources that the writer uses.