Body temperature is determined by the body's thermoregulatory set-point. The body increases this set-point in response to threats such as bacterial or viral infections. When this set-point rises, a fever occurs and the body perceives itself as suffering from hypothermia (colder than it should be).
What You Can Eat. That depends on your blood type. Type O blood: A high-protein diet heavy on lean meat, poultry, fish, and vegetables, and light on grains, beans, and dairy. D'Adamo also recommends various supplements to help with tummy troubles and other issues he says people with type O tend to have.
Foods for Red Blood Cell Production. Several foods contain one or more nutrients important to red blood cell production. Incorporate kale into your diet. The leafy greens contain vitamins A, B6 and B9, as well as copper and iron.