How we choose sources
We prioritise national blood services, government health information, professional medical organisations and peer-reviewed journals. Individual articles cite the subset of these sources relevant to their topic.
Sources
Information on this page is paraphrased from the following authoritative sources.
- The ABO blood group(opens in a new tab)NCBI Bookshelf, National Library of Medicine (Blood Groups and Red Cell Antigens, 2005)
- Facts About Blood and Blood Types(opens in a new tab)American Red Cross
- Blood typing(opens in a new tab)MedlinePlus, U.S. National Library of Medicine
- The Rh Factor: How It Can Affect Your Pregnancy(opens in a new tab)American College of Obstetricians and Gynecologists (ACOG)
- Rh Incompatibility(opens in a new tab)MedlinePlus, U.S. National Library of Medicine
- The Rh blood group(opens in a new tab)NCBI Bookshelf, National Library of Medicine
- Blood Types (general U.S. frequency estimates, crediting the AABB Technical Manual, 18th Edition)(opens in a new tab)Stanford Blood Center
- Blood Component ABO Compatibility Chart(opens in a new tab)UTMB Transfusion Medicine
- Component compatibility (updated April 2026)(opens in a new tab)Australian Red Cross Lifeblood
- Blood Safety and Matching(opens in a new tab)American Society of Hematology
- No relationship between blood type and personality: evidence from large-scale surveys in Japan and the US(opens in a new tab)PubMed (Shinri kenkyu / Japanese Journal of Psychology, 2014)
- Blood type diets lack supporting evidence: a systematic review(opens in a new tab)PubMed (American Journal of Clinical Nutrition, 2013)
- ABO genotype, 'blood-type' diet and cardiometabolic risk factors (cross-sectional analysis of 1,455 young adults)(opens in a new tab)PLOS ONE (2014)