Nutrition and hunger go hand in hand. When you give your body all the vitamins in fresh food, then your hunger will decrease. Those who only eat dead food, as in highly processed foods, packaged, junk, will get the calories but no nutrition will be "hungry" filled with calories but no nutrition.
The bushman of the Kalahari, they eat only when they have a kill (hunt). The human brain will switch on alertness when the body needs all its facalties to find a bush dear. We become more alert when in hungry state.
Intermittent fasting can be used to control our blood sugar levels. Those who are constantly putting food in their system will benefit to eat every 16 to 24 hours to level their blood sugar.
Yes. Corn syrup is sure cause of obesity, added with continuing sitting down. People drive hours to work and back, most sit at a desk job, then at night sit and view games or TV.
We can learn from the Bushman to eat only when we are truly hungry.