Calories and energy sources (carbs, proteins, fats) are a small part of the riddle. Besides calories our bodies need lots of micronutrients, amino-acids, enzyme

Calories and energy sources (carbs, proteins, fats) are a small part of the riddle. Besides calories our bodies need lots of micronutrients, amino-acids, enzymes,... - the quality of the food is paramount. Our modern food is high in calories and low in nutrients, that's mostly due to the 'advances' in modern agriculture and the whole chain of food production and distribution. Then there is the aspect of the mind. Look into the mind of any overweight or obese person and you'll find a bucket of psychological disorders, most of them caused by poor nutrition and most of them being the reason for the person 'fixing' them with more food or alcohol or drugs. Few people ever learn to listen to their bodies and when their bodies scream 'I need nutrients', the mind hears 'I am hungry' and goes and procures more empty calories. That's the cycle which leads to weight gain and obesity and all the related health problems.