Blood Type: What Does It Really Affect?

28 ottobre 2025

2 min di lettura

Some people use blood type to choose their diet, others try to determine character traits, and others look for a predisposition to the disease. The question is: does blood type affect human health and behavior?

Punti chiave

Some people use blood type to choose their diet, others try to determine character traits, and others look for a predisposition to the disease.
What are blood types?
Truths and myths

Per chi è

Chi esplora Blood attraverso blood, tests.

Perché è importante

Questo articolo ti aiuta a orientarti rapidamente, per poi passare a una raccolta o serie se vuoi continuare.

Autore dell'articolo

Dr. Ely

General practitioner

What are blood types?

In 1901, while studying the process of blood coagulation of different people when mixed, the Austrian-American physician and scientist Karl Landsteiner concluded that there are different blood types.

Later he created a system with four blood groups: 0, A, B, and AB. The letters are the types of antigens on the surface of red blood cells (erythrocytes). Antigens are special substances that the body's immune system reacts to. Different people have different antigen sets, so only a compatible blood type can be used for transfusion.

44 percent of people are blood O, 42 percent are blood type A, 10 percent blood type B, and 4 percent are blood type AB.

Truths and myths

Many theories attribute certain characteristics to people with different blood types. But none of them have a sufficient scientific basis.

For example, in the middle of the 20th century, British and Swedish scientists conducted large-scale studies and determined that a set of red blood cells can provide information about a person's predisposition to certain diseases:

O blood type people are more prone to gastritis, peptic ulcers, kidney stones, and lung problems (chronic bronchitis, tuberculosis, bronchial asthma).
A blood type people are more susceptible to stomach cancer, leukemia, chronic cholecystitis, cholelithiasis, thrombosis, and miscarriages.
B and AB blood types are more likely than others to face pancreas cancer, ovarian cancer and infections of the genitourinary system, cardiovascular diseases, neuroses, and Alzheimer's disease.

According to Japanese scientists, many people with B type blood group live longer than others. And O blood type people are bitten by mosquitoes twice as much as people in any other group.

American scientists have found that O blood type people are least at risk of contracting the SARS-COV-2 virus. And A blood type people suffer a lot from the disease since they have an increased concentration of von Willebrand factor in the blood, which triggers the process of thrombus formation.

Diet by blood type

One notable story related to blood groups is the diet of the American naturopath Peter D'Adamo. He stated that blood type affects the body's ability to digest different types of food and recommended eliminating foods from the diet that are "unsuitable to blood."

The only trick was that, among other things, all patients were forbidden to eat processed food, all kinds of fast food, and simple carbohydrates — no wonder they started to lose weight. Some studies carried out by scientists around the world have proven that the blood type diet works solely by limiting harmful foods in the diet. No miracles involved!

Continua a leggere

Blood#blood

Blood Type Diet: How Does It Work?

And who said it works?

Dr. Ely28 ott 2025

Blood#vessels

D-Dimer — Why Take It?

Almost everybody learned the name of this test when the Covid-19 pandemic started. Why is it necessary for all patients who had coronavirus to take this test? What other health conditions might require it?

Dr. Ely28 ott 2025

Women's health#contraception

What Is the Pearl Index and How Does It Help Avoid Unwanted Pregnancy?

What kind of protection during sex is the most effective? No need to argue, everything has been decided for a long time.

Dr. Ely28 ott 2025

Ornament blog#blood

The Laboratory Inside You: Ornament Invested In The High-tech Startup Spiden

The ambitious project started with an idea that soon the human body and modern medical technology will become one. It will be possible to continuously monitor the body's condition in real-time thanks to the introduction of a next-generation microchip in the blood. Once the realm of science fiction, this is now a near reality.

Alina28 ott 2025

Installa Ornament non solo per leggere questi articoli, ma anche per monitorare la tua salute, archiviare i risultati degli esami e accedere ad altre funzioni utili

Installa Ornament