Blood group o people, most of them have low stomach acids causes a good sub system. The immune system is not very likely the risk of heart disease and cancer group-it was a vegetarian.
Blood type O most have low stomach acid. Make good digestion The immune system is not good There is a risk factor for heart disease and cancer are classified as Group A vegetarian.
Type O blood mostly in stomach acid is low. The digestive system is not good, the immune system is not good, risk of heart disease and cancer, type is a vegetarian .