Final answer:
Scientists have found a positive association between high-fructose corn syrup (HFCS) consumption and obesity. HFCS may alter metabolisms and has coincided with an increase in obesity and related health issues. Consuming 'non-fat' foods high in sugar can still lead to weight gain as excess sugars are converted to fat.
Step-by-step explanation:
In evaluating the potential link between high-fructose corn syrup (HCFS) and obesity, scientists have found that there is a positive association between HCFS consumption and obesity. Studies suggest that even though HCFS and traditional sugars are similar in taste, HCFS could potentially affect human metabolisms in ways that contribute to obesity. The consumption of HFCS, often found in sugary processed foods and beverages, has risen dramatically since it replaced cane sugar as a common sweetener. This dietary shift corresponds with an increase in obesity-related health issues in the United States and elsewhere. Despite the controversy and the corn industry's objections, it is generally accepted that diets high in both sugars and fats, and low in vegetables, lead to various chronic health conditions.
In addition, foods labeled as low-fat or non-fat may contain significant amounts of sugar, which can contribute to weight gain. This is because excess sugars are converted to fat by the body, thus even when consuming 'non-fat' products, one can still gain fat if those products are high in sugar.