When we eat foods with refined carbohydrates, which has no fiber, it becomes easily accessible to the body’s digestive system. They are quickly broken down and lead to rapid spike in the blood sugar levels. Also, the sugar levels that had risen sharply, drop again soon after. When that happens, we feel hungry and get cravings.
Thus, eating these types of foods leads to overeating and may therefore cause weight gain and obesity.
Refined grains have also been linked to numerous metabolic diseases. They can drive insulin resistance and are linked to type 2 diabetes and heart disease.
From a nutrition standpoint, there is nothing positive about refined grains. They are low in nutrients, fattening, and harmful, and most people are eating way too much of them.