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).
Meat, Poultry and Seafood. D'Adamo recommends that people with type A blood eat plenty of fish, including salmon, sea or rainbow trout, red snapper, cod and mackerel. Chicken and poultry can be eaten up to two times a week, but D'Adamo says to avoid all beef, pork, game meats and shellfish.
Foods rich in salicylates include ginger, turmeric, garlic and onion. Foods rich in Omega-3 Fatty Acid inhibit clotting and decrease the production of the pro-inflammatory compound leukotrienes. Some Omega-3 rich foods include mackerel, salmon, walnuts, flaxseed, beans and olive oil. Pumpkin seeds, soya based foods, sunflower seeds and sesame seeds contain phytoestrogens that improve blood circulation by increasing dilation and thereby expanding small arteries.