None of these conditions exists in primitive cultures who do not have access to refined sugar until 20 years after their introduction. Sugar is an immunosuppressant. It reduces the production of antibodies, proteins that combine with and inactivate foreign invaders in the body. It interferes with the transport of vitamin C, one of the most important nutrients for all facets of immune function. It neutralizes the action of essential fatty acids, thus making cells more permeable to invasion by allergens and microorganisms.
Carbohydrates are very important in our diet.
They provide the glucose that we need to run our brains, and work our muscles for instance. Carbohydrates are either simple or complex. Complex sources are potatoes, vegetables, legumes and grains. Nowadays half of all the carbs we consume are in the form of simple sugars. We are becoming sugaraholics.