What is it about certain foods that make you overeat?
Generally, hunger is brought about by a hormone called ghrelin. When you eat a sugary food, insulin levels rise which reduces ghrelin levels and increases leptin levels which equates with a reduction in hunger. However, not all sugary foods have the same effect on hunger. HFCS(high fructose corn syrup) which is added to many sweets, breads and to soft drinks can negatively impact your appetite. When you eat foods high in fructose corn syrup, ghrelin levels are not as suppressed, and fructose interferes with the way leptin tells your brain that your full. Thus, your brain does not get the satiety signal (the full signal) and you tend to overeat.