The concept of a blood group diet chart suggests that the foods we eat should be tailored to our blood type to optimize health, energy, and well-being.
According to this theory, each blood type has unique dietary requirements, and certain foods may cause adverse reactions or hinder health when consumed in excess.
In this article, I’ll explain the foods to avoid for each of the eight common blood groups: A+, B+, AB+, O+, A-, B-, AB-, and O-.
By understanding which foods can be problematic for each blood type, you can make more informed choices about what to eat.
1. Blood Group A (A+ and A-)
According to Medical Science and Clinical Research by Bhalla, people with blood type A tend to have a more sensitive digestive system, and it is recommended they follow a mostly plant-based diet with a lower intake of animal products.
Here are 9 foods that should be avoided for this blood type:
- Red Meat – Beef, lamb, and pork are not well tolerated and can lead to digestive issues.
- Dairy Products – Milk, cheese, and butter may cause bloating and discomfort.
- Kidney Beans contain lectins that can interfere with digestion for blood type A people.
- Tomatoes – While rich in nutrients, they can trigger inflammation in those with blood type A.
- Potatoes are high in starch and can lead to weight gain and blood sugar fluctuations.
- Citrus Fruits – Oranges, lemons, and grapefruits may cause acidity for some with blood type A.
- Wheat – Blood type A may struggle with wheat gluten and processed wheat products.
- Mushrooms – These can be hard to digest and may cause discomfort.
- Vinegar – The acidity may be harsh on the digestive system.
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2. Blood Group B (B+ and B-)
According to clinical microbiology reviews, blood type B people tend to have more robust immune systems but should still avoid certain foods to maintain optimal health.
Here’s a list of foods to steer clear of:
- Chicken – Unlike other meats, chicken can disrupt the balance of blood type B.
- Corn – This can interfere with digestion and cause sensitivity issues.
- Tomatoes – Like for blood type A, tomatoes can provoke inflammation in type B.
- Peanuts – They contain lectins that may cause immune system reactions.
- Lentils – These can be difficult to digest and may cause bloating or discomfort.
- Sesame Seeds – While they provide healthy fats, they may cause digestive disturbances.
- Shellfish – Blood type B people should avoid shellfish to prevent allergies and sensitivities.
- Mustard – This spice can irritate the stomach lining in some people with blood type B.
- Wheat – Like type A, blood type B people may struggle with wheat-based foods.
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3. Blood Group AB (AB+ and AB-)
AB blood types are a mix of A and B characteristics, so they need to be cautious about both animal products and certain vegetables.
Here are 9 foods to avoid:
- Corn – Like other blood types, corn can cause digestive issues.
- Buckwheat – This pseudo-grain can cause inflammation in some AB types.
- Tomatoes – Known to cause issues with the stomach, especially for blood type AB.
- Kidney Beans – These legumes contain lectins that can upset the digestive tract.
- Chicken – As with type B, chicken is not recommended for AB blood types.
- Red Meat – Beef and pork can be difficult to digest and may lead to inflammation.
- Shellfish – AB types should avoid shellfish due to potential allergic reactions.
- Bananas – While nutritious, bananas can cause bloating and discomfort for some AB people.
- Citrus Fruits – These fruits can increase acidity in the stomach, causing discomfort.
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4. Blood Group O (O+ and O-)
Blood type O is considered the “hunter” blood type, and people with this blood group thrive on a high-protein, low-carbohydrate diet. However, there are still certain foods to avoid:
- Dairy Products – Milk, cheese, and other dairy products can cause bloating and digestive distress.
- Wheat – Blood type O should avoid wheat as it may lead to digestive issues and weight gain.
- Legumes – Beans and lentils contain lectins that can interfere with digestion for blood type O.
- Cabbage – This vegetable can be difficult for O types to digest.
- Brussels Sprouts – Like cabbage, Brussels sprouts may cause bloating and discomfort.
- Cauliflower – A cruciferous vegetable that may cause digestive disturbances for type O.
- Potatoes – While starchy, potatoes can be problematic for blood type O and lead to weight gain.
- Processed Foods – Pre-packaged or processed foods can lead to inflammation and digestive issues.
- Corn – Blood type O people should avoid corn to prevent digestion problems.
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5. Blood Group A-
People with blood type A- share many similarities with A+ people but may have even more sensitive immune systems.
Here are 9 foods to avoid:
- Red Meat – Beef, lamb, and pork are hard to digest for A- types.
- Dairy Products – Avoid milk, cheese, and other dairy products to prevent bloating and gas.
- Citrus Fruits – Oranges and lemons can cause acidity problems for blood type A-.
- Tomatoes – These can cause inflammatory reactions and digestive discomfort.
- Wheat – Highly processed wheat products should be limited.
- Peanuts – May cause allergic reactions or digestive issues.
- Potatoes – Can increase weight and lead to blood sugar fluctuations.
- Cabbage – This vegetable is not easily digested by type A- people.
- Vinegar – Its acidity can irritate the digestive system.
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6. Blood Group B-
Like other B blood types, people with B- blood should focus on a balanced diet that avoids certain foods to optimize their health.
Here are 9 foods to avoid:
- Chicken – Avoid chicken as it can disrupt digestion for B- blood types.
- Corn – Known to irritate the digestive system and cause discomfort.
- Peanuts – Peanuts contain lectins that may hinder digestion and immune function.
- Tomatoes – Tomatoes can cause inflammation in some people with blood type B-.
- Sesame Seeds – These may cause digestive discomfort for B- types.
- Wheat – Avoid wheat to prevent bloating and digestive disturbances.
- Shellfish – Allergic reactions and sensitivities can occur with shellfish.
- Mustard – Can irritate the stomach lining in blood type B-.
- Lentils – They are difficult to digest and may cause bloating or discomfort.
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7. Blood Group AB-
AB- blood types should be particularly cautious about food choices, as their mixed genetics may make them sensitive to a variety of foods.
Here are 9 foods to avoid:
- Corn – Known to cause digestive issues for AB- types.
- Buckwheat – This should be avoided due to its potential to cause inflammation.
- Tomatoes – Can trigger inflammatory responses and digestive discomfort.
- Chicken – Like other blood types, chicken is not ideal for AB- types.
- Red Meat – Beef and pork are hard to digest and may lead to bloating.
- Shellfish – AB- people should avoid shellfish to reduce the risk of allergic reactions.
- Citrus Fruits – These can cause digestive discomfort and acidity.
- Bananas – While healthy, bananas can cause bloating and stomach issues.
- Lentils – Can be difficult to digest for AB- blood types.
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8. Blood Group O-
For people with blood type O-, the dietary needs are quite similar to those of O+ blood types but with a greater sensitivity to certain foods.
Here are 9 foods to avoid:
- Dairy Products – Avoid milk and cheese to prevent bloating and digestive distress.
- Wheat – Processed wheat can cause digestive issues for O- blood types.
- Legumes – Beans and lentils should be limited due to their difficulty in digestion.
- Cabbage – This vegetable may cause bloating and discomfort for O- people.
- Brussels Sprouts – Like cabbage, Brussels sprouts may not sit well with O- types.
- Cauliflower – Another cruciferous vegetable that can disrupt digestion.
- Processed Foods – These may lead to inflammation and other digestive issues.
- Corn – Blood type O- should avoid corn to reduce digestive problems.
- Potatoes – Excessive potato consumption can lead to weight gain and digestive issues.
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A Word From GetMe Treated
The blood group diet chart provides a helpful framework for understanding how your blood type may influence your nutritional needs.
By avoiding certain foods that are not compatible with your blood type, you can optimize your health and improve your digestive function.
While the scientific evidence supporting the blood group diet is still debated, many people report feeling better when they tailor their diets based on their blood type.
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So, consider eliminating or reducing the foods listed above to see how your body responds, and always consult with a healthcare provider before making important dietary changes.
Blood Group Diet Chart FAQs
What foods should people with blood type A+ avoid?
People with blood type A+ should avoid red meat, dairy products, and processed foods. They may also find it difficult to digest foods like tomatoes, potatoes, and wheat.
Are there any foods to avoid for people with blood type B+?
Individuals with blood type B+ should avoid chicken, corn, wheat, and tomatoes, as these can negatively impact digestion and overall health for this blood type.
What foods are best avoided for people with blood type AB+?
People with blood type AB+ should steer clear of smoked or cured meats, corn, and kidney beans, as they may cause digestive issues and inflammation.
Which foods should those with blood type O+ avoid?
For blood type O+, it’s best to avoid dairy, grains (especially wheat), and beans, as they may interfere with the body’s digestive efficiency and metabolism.
What foods should individuals with blood type B- avoid?
Those with blood type B- should avoid chicken, shellfish, and corn. These foods can disrupt their immune system and metabolism according to the blood type diet theory.