What to know about blood-type research
Keep in mind that the research linking blood type and health conditions looks at population studies, so it can only find an association between these two things, not definitively prove that your blood type is the cause of a specific condition. “The risk for any one person is multifactorial,” notes Dr Gernsheimer. That means your daily habits – what you eat, your activity level, how you handle stress, and your family history – make a huge difference in your individual risk.
You don’t have to overhaul your life because of your blood type
Your blood type certainly doesn’t seal your fate when it comes to your health. “It’s important to understand that blood groups also vary in different ethnicities and within ethnic groups depending on where they settled during migrations,” says Dr Gernsheimer. “These differences in cultures may lead to differences in diet and lifestyle that further affect risk.” Plus, even though there are many ways your blood type may influence your health, Dr Gernsheimer says that “there isn’t good evidence that one’s lifestyle should be altered because of it.”
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