The combination of fat and refined carbohydrates has an extremely powerful effect on driving the signals that promote fat accumulation on the body. Refined foods cause a swift and excessive rise in blood sugar, which in turn triggers insulin surges to drive the sugar out of the blood and into our cells. Unfortunately, insulin also promotes the storage of fat on the body and encourages your fat cells to swell.
As more fat is packed away on the body, it interferes with insulin uptake into our muscle tissues. Our pancreas then senses that the glucose level in the bloodstream is still too high and pumps out even more insulin. A little extra fat around our midsection results in so much interference with insulin’s effectiveness that two to five times as much insulin may be secreted in an overweight person than in a thin person.
The higher level of insulin in turn promotes more efficient conversion of our caloric intake into body fat, and this vicious cycle continues. People get heavier and heavier as time goes on.
Eating refined carbohydrates—as opposed to complex carbohydrates in their natural state—causes the body’s “set point” for body weight to increase. Your “set point” is the weight the body tries to maintain through the brain’s control of hormonal messengers. When you eat refined fats (oils) or refined carbohydrates such as white flour and sugar, the fat-storing hormones are produced in excess, raising the set point. To further compound the problem, because so much of the vitamin and mineral content of these foods has been lost during processing, you naturally crave more food to make up for the missing nutrients.