The ABO blood group system is the most critical of all blood group systems. Blood types must also be compatible for organ transplants to occur. Understanding blood types enables healthcare expert to safely transfuse donated blood from one person to another during a blood transfusion. If you have this protein, your blood type is positive (+). They are also looking for a protein known as the Rh factor. Blood bank professionals assess your blood type based on whether your red blood cells contain antigen A or B. The four major blood types are A, B, AB, and O. A, B, AB, and O are blood types.Ī blood type is a classification system that allows healthcare providers to determine whether your blood is compatible or incompatible with someone else’s blood. Donors and recipients with compatible blood types are required for blood transfusions and organ transplants. Blood types categorise blood so that healthcare providers can assess whether one person’s blood is compatible with the blood of another. Table Of ContentsĪlthough all blood performs the same function, not all blood is the same. Researchers have found over 300 minor blood groups, with new antigens being discovered continuously. They make up the eight major blood groupings. The ABO system and the Rh system are the two basic methods for classifying blood groups. The plasma contains red blood cells, which carry oxygen, white cells, which are part of the immune system, and platelets, which are clotting cells. Plasma constitutes the majority of your blood. The blood transports oxygen and nutrients to all cells in the body, as well as waste products (such as carbon dioxide) for elimination. Mean total cholesterol decreased 17.2 mg/dl in the type A group and 18.3 mg/dl for non-A participants, and decreased 17.4 mg/dl among type O participants and 18.4 mg/dl for non-O participants.The circulatory system comprises the heart, blood arteries, and blood itself. 5.7 kg for blood type A participants and -7.0 kg for non-A participants, and was -7.1 kg for type O participants and -6.2 kg for non-O participants. There were no significant differences in any outcome between individuals of blood type A and non-A, or between individuals of blood type O and non-O. T-tests compared participants with blood type A to all other participants (non-A), and individuals with blood type O to all other participants (non-O). Main outcomes that were measured were body weight, fat mass, visceral fat volume, blood lipids, fasting plasma glucose, and HbA1c. “Our research shows that all blood types benefit equally from a vegan diet based on the consumption of fruits and vegetables, legumes and whole grains, looking specifically at weight loss and cardiometabolic health in overweight adults,” he says. “While the blood type diet says that a plant-based diet should be better for blood type A and less so for blood type O, it turned out to be beneficial for people of all blood types, and there was no evidence that meaty diets are good for anyone. “We found that blood type made no difference,” says study author Neal Barnard, MD, president of the Physicians Committee. They considered whether the effects of a plant-based dietary intervention on body weight, blood lipids, and glycemic control are associated with ABO blood type. The “blood type diet” recommends a mainly plant-based diet for those with blood type A, while it recommends a diet heavy in meat for people with blood type O. To consider a potential connection between blood type and diet, researchers took the additional step of conducting a secondary analysis among intervention-group participants of the 16-week randomized clinical trial. The key finding is that a plant-based diet ramps up metabolism as measured by an increase in after-meal calorie burn of 18.7%, on average, for the intervention group over the control. Participants in the intervention group followed a low-fat, plant-based diet. 30. That trial randomly assigned overweight participants with no history of diabetes to an intervention or control group on a 1:1 ratio for 16 weeks. This new study is based on a randomized control trial whose main findings were published in JAMA Network Open on Nov. WASHINGTON-A study published in the Journal of the Academy of Nutrition and Dietetics by researchers with the Physicians Committee for Responsible Medicine-a nonprofit of 12,000 doctors-debunks the “blood type diet” by finding that blood type was not associated with the effects of a plant-based diet on body weight, body fat, plasma lipid concentrations, or glycemic control.
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