Does fast food cause obesity? In short… yes.
While it is certainly not the only cause, fast food restaurants are a big part of the obesity problem.
In fact, how frequently individuals visit fast food restaurants is directly correlated with their weight. According to a 15-year study of 3,000 adults, people who visited fast food restaurants more than twice per week gained roughly 9 to 11 pounds (4 to 5 kg) more than people who visited them less than once per week (1).
The “common sense” reasoning behind the weight gain is that fast food is less healthy than other food, but this assumption is only partially correct.
Read the sections below for everything you need to know about how fast food contributes to the obesity epidemic.
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