Processed foods (foods no longer in their natural form – pretty much the only way you can eat grains) – have very little fiber and therefore a huge glycemic load. This means your stomach digests that food down to sugars that enter your blood stream very quickly. Not good. Not good at all – leads to insulin resistance which destroys your health.
Your body has innate nutritional needs that it requires for health and function. These are called essential nutrients. You cannot live on wood like termites. You cannot use sunlight for energy like plants. So, the basic physiology of your body determines what you need to consume for fuel and also for nutrition.
The typical modern diet and activity level creates regular occurrences of unhealthy blood sugar levels in your body. Blood sugar is a term used to describe the amount of the sugar glucose that is in currently in your blood. Glucose is the primary sugar, or carbohydrate, in your body.