Dr. Barry Sears Dr. Sears Comments:

It’s not simply simple carbs that make you tired, but high-glycemic carbs (like grains and starches) because they enter the blood stream as glucose even faster than table sugar to increase insulin that drives down blood-sugar levels.  It is the hypoglycemia that makes you tired.  If you add extra omega-6 fats to those high-glycemic carbohydrates to increase inflammation, then you also get sick.