Can Blood Type Diet Reduce Allergy?

Why the Blood Type Diet helps treat Allergies

The blood type diet helps to prevent or treat allergies because it recommends foods that are best suited to different blood types. It encourages people to eat foods that build up immunity, restore immune system function, and stop inflammation. It also limits or restricts foods that contain lectins that trigger an unnecessary immune response.

This is because some toxic lectins act as allergens and trigger an immune response. Therefore, staying away from lectins helps prevent an overblown immune response and decreases the risk of developing allergies.

The diet also advises certain blood types with a leaky gut to avoid foods that contain harmful lectins because both lectins and allergens can flow out of the digestive system and get into the bloodstream.

When in the blood, the body then perceives these lectins and allergens as foreign substances and initiates an immune response to destroy them. Thus, if people who have intestinal damage stay away from harmful lectins and allergens, they will avoid developing allergies.

Alternatively, the blood type diet recommends that each blood type eat foods that contain “medicinal lectins” that improve the body’s utilization of different foods. Some foods, such as pineapples, also contain lectins with anti-inflammatory properties, reducing a person’s risk for allergies.

The diet also encourages all blood types to stay away from neutral foods. Neutral foods tend to have less nutritional value than the beneficial foods, and consuming them does not build up a person’s immunity.

How the Blood Type Diet works for Allergies

The blood type diet works for allergies by reducing the amount of stress on the body. That way, the body can respond to the allergens appropriately without an overblown immune response.

The blood type diet advises specific blood types to avoid consuming toxic lectins that may activate an immune response. Instead, it prescribes foods that contain “medicinal lectins” that boost immunity and reduce inflammation caused by an overactive immune response.

For instance, blood type A and AB individuals need to stay away from the lectins in red meats because the lectins found in red meat cause agglutination and activate the immune system. Meanwhile, blood type O and B individuals need to avoid wheat and wheat-based products because wheat lectins bind to receptors on white blood cells and trigger an immune response.

The blood type diet also recommends people who have leaky gut to avoid foods containing lectins that are incompatible with their blood type antigens. That way, lectins and allergens that enter the bloodstream through the damaged GI tract will not initiate an immune response, which may lead to allergies because lectins can bind to IgE molecules to release histamine.

Blood Type Diet foods for Allergy

The blood type is not based on the amounts of macronutrients or calories your body consumes. Instead, it focuses on restricting food groups for each blood type to help maintain proper body functions and prevent and treat medical conditions. 

The food types for each blood type are listed below:

- Blood Type O: can eat lean meat, poultry, fish, and vegetables, and fewer grains, beans, and dairy. 

- Blood Type A: can eat more fruits and vegetables, beans and legumes, and whole grains with little to no meat (vegetarian diet). 

- Blood Type B: can eat green leafy vegetables, eggs, most meats (except chicken and pork), and low-fat dairy. They should avoid wheat, corn, lentils, tomatoes, peanuts, and sesame seeds.

- Blood Type AB: can eat seafood, tofu, dairy, beans, and grains. They should avoid kidney beans, corn, beef, and chicken.

Blood Type Diet foods for Allergy: by blood type

Foods for Blood Type O

People who are blood type O can eat these specific foods because they do not contain harmful lectins, boost immunity, and improve digestive system function.

- Lean organic grass-fed beef

- Richly oiled cold-water fish like halibut, cod

- Flax (linseed) oil

- Olive oil

- Seaweed

- Onions

- Garlic

- Pineapple 

- Turmeric 

- Green tea

Foods for Blood Type A

People who are blood type A can eat these specific foods because they do not contain harmful lectins, boost immunity, and improve digestive system function:

- Soy products 

- Flax (linseed) oil

- Olive oil

- Broccoli 

- Onions

- Garlic

- Lemons 

- Berries like blueberries, cranberries, elderberries, and cherries 

- Green tea

Foods for Blood Type B

People who are blood type B can eat these specific foods because they do not contain harmful lectins, boost immunity, and improve digestive system function:

- Lean organic grass-fed meat like lamb or mutton

- Richly oiled cold-water fish like halibut, sardines

- Flax (linseed) oil

- Olive oil

- Cultured dairy products like yogurt, kefir

- Onions

- Broccoli

- Pineapple 

- Turmeric 

- Berries like cranberries, elderberries 

- Green tea

Foods for Blood Type AB

People who are blood type AB can eat these specific foods because they do not contain harmful lectins, boost immunity, and improve digestive system function.

- Soybeans and soy-based products

- Richly oiled cold-water fish (salmon, sardines)

- Cultured dairy (yogurt, kefir)

- Flax (linseed) oil

- Olive oil

- Broccoli 

- Onions

- Lemons 

- Turmeric 

- Green tea

Blood Type Diet for Allergy: recommendations:

- Eat fresh and organic fruits and vegetables: fresh or organic fruits and vegetables have more nutrients. If people eat fruits and vegetables that have been sprayed with pesticides, the chemicals in the pesticides could cause the body to believe it is under attack and overwork the body’s immune system, eventually weakening it.

- Exercise regularly: Peter D’Adamo recommends different kinds of exercise based on your blood type.

The different types of exercise for each blood type is listed below:

o Blood type O: People who are type O should engage in intense exercising activities like jogging or biking.

o Blood type A: People who are type A should focus on low-level activity and stress-relieving exercises like yoga or tai chi.

o Blood type B: People who are type B should focus on moderate-level exercise and can include yoga or other mindfulness practices.

o Blood type AB: People with type AB blood can combine exercises from blood types A and B.

- Take certain supplements depending on your blood type: the diet restricts the consumption of meat and dairy for specific blood types. This may result in malnutrition, so some blood types must take nutritional supplements to ensure that they get the vitamins and minerals their body needs.

o Blood type O individuals need to take Vitamin C, B12, iron, and folic acid supplements.

o Blood type A individuals need to take Vitamin B, K, calcium, and licorice supplements.

o Blood type B individuals need to take magnesium, ginkgo, licorice, and lecithin supplements. 

o Blood type AB individuals need to take Vitamin C, B12, and iron supplements.

Additional supplements suitable for all Blood Types

 o Cumin

o Larch arabinogalactan

o Dandelion root

o Ginger

o Stinging nettles (Urtica dioica) leaf

o Rosehip extract or tea

Blood Type Diet for Allergy: what you should avoid in general

All of the blood types should avoid:

- Processed meats: these meats contain high amounts of salt and preservatives that are not good for your body.

- Foods that are high in sugar: high sugar foods can increase blood sugar levels and cause weight gain.

- Simple carbohydrates: simple carbohydrates can cause weight gain because they are broken down and converted into fat.

- Drinking water with meals: do not drink water when you are eating because this can slow down digestion.

Specific foods to avoid by Blood Type

Foods to avoid for Blood type O

These foods contain lectins that are harmful to type O individuals:

o Wheat

o Corn

o Legumes

o Kidney beans

o Dairy

Foods to avoid for Blood type A

These foods contain lectins that are harmful to type A individuals:

o Beef

o Pork

o Lamb

o Cow’s milk

o Potatoes, yams, and sweet potatoes

o Certain vegetables, such as cabbage, eggplant, tomatoes, peppers, and mushrooms

o Lima beans

o Certain fruits, such as melons, oranges, strawberries, and mangos

o Poultry other than chicken and turkey, such as duck

o Venison

o Fish, such as bluefish, barracuda, haddock, herring, and catfish

o Some grains and grain products, such as wheat bran, multigrain bread, and durum wheat

o Refined sugar

o Refined carbohydrates, such as white flour and white bread

o Oils other than olive oil

o Artificial ingredients

o Most condiments

Foods to avoid for Blood type B

These foods contain lectins that are harmful to type B individuals:

o Corn 

o Wheat, 

o Chicken 

o Buckwheat  

o Lentils 

o Tomatoes 

o Some nuts like peanuts 

o Some seeds like sesame seeds 

Foods to avoid for Blood type AB

These foods contain lectins that are harmful to type AB individuals:

o Some beans like red beans, kidney beans, and chickpeas

o Smoked and cured meats

o Chicken, duck, and goose

o Condiments like mustard and vinegar

o Duck eggs

o Some cheeses like American cheese, blue cheese, brie cheese, Camembert, Parmesan, provolone

o Certain fruits like avocado, bananas, bitter melon, coconut/coconut milk, dewberries, guava, mango, oranges, persimmons, and pomegranates

Blood Type Diet for Allergy: precautions

If people know that they are allergic to a specific type of food, they should avoid it, regardless of their blood type.

The diet can be restrictive for some blood types, like type A and type O, so they have to be careful to receive the vitamins and minerals their body needs.

People with chronic health conditions should consult a medical professional or a dietician before starting a diet based on their blood type because the dietary recommendations for their blood type might not necessarily be good for them.

Always consult with a healthcare professional before starting any new diet or treatment.