Blood Type Diet: 6 Foods to Avoid for Blood Type AB

The Blood Type Diet was created by Dr. Peter D’Adamo to help individuals to become healthier, age gracefully and reach their ideal weight. The basic premise behind the diet is that your blood type determines how food is metabolized by your body. D’Adamo outlines specific foods to avoid based on your blood type. These are the foods that interact with your blood in such a way that leads to an acidic condition. When the body becomes too acidic, it can lead to a range of health problems.

The AB blood type is thought to be more complicated than the other blood types. It combines some of the vulnerabilities of both the Type A and Type B blood types. Here are the specific foods that an individual with Type AB blood should avoid.

1. Meats to Avoid

This blood type does not have sufficient stomach acid for digesting and metabolizing animal protein. Meats to be avoided by this blood type include chicken, beef, ham, pork, veal and bacon. Recommended protein sources are lamb, rabbit, mutton, turkey, tofu and a wide range of seafood.

Chicken is especially problematic for this blood type because it contains lectin in its muscle tissue that can potentially lead to autoimmune disorders. Turkey can be used to replace chicken as it does not have the same effect.

2. Dairy Products and Health Issues

Individuals with Type AB blood are prone to mucus excess. If this is your blood type, watch for sinus attacks, respiratory issues or ear infections. In that case, you may want to cut out specific diary foods such as butter, American cheese, whole milk, provolone cheese and Parmesan cheese.

3. Type AB Blood and Wheat Products

Type AB individuals should limit their consumption of wheat products. This is especially the case if weight loss is an issue or if you are prone to mucus production. Occasional consumption of wheat products is okay. Better replacements include rye, rice and oats.

4. Fruits to Avoid

Although most fruits are healthy for this blood type, a few should be avoided. Mangoes, bananas and guava, for example, are on the avoid list. Oranges are especially forbidden for this blood type because they irritate the stomach. Grapefruits may be eaten in place of oranges; they have an alkalizing effect in the body after they have been digested.

5. Vegetables to Avoid

Type AB individuals may eat a wide range of vegetables. The ones on the list of foods to be avoided create an acidic condition in the body. The specific vegetables to avoid include avocados, lima beans, radishes, artichokes, green peppers, red peppers and yellow corn.

6. Oils to Eliminate

The highly beneficial oil for this blood type is olive oil. The oils to avoid include corn oil, cottonseed oil, sunflower oil, sesame oil and safflower oil. The oils that have a neutral effect on the body for this blood type are canola oil, peanut oil and linseed oil.


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Posts By Sequoia
  • Jenny

    What the *&#@ are you supposed to eat????????????????

  • Kamila

    I don’t think I would be able to do it! I love meat and cheese!! I rather go for Duncan diet!

  • Chris

    I’m going to miss Avocados and butter!!! πŸ™

  • niki

    I’m blood type ab negative and this diet okay except avocado’s chicken and my favourite food bananna’s have never seemed to affect me in anyway.I’m a health nut and think just eat healthily. some foods our blood type is ment to avoid to me are very benificial containing many benefits. chicken is a lean poultry meat commonly eaten and affordable. Why avoid it if it doesn’t affect your body or metabolism. for our blood type rice is very beneficial pasta not so.
    Also i eat some of the various vegetables that are said to be avoided yet they don’t affect me in a negative way

  • miyu

    The only thing what bothers me is not to eat chicken, because at the most restaurants only serve chicken but no turkey πŸ™
    And I like bananas if I can not eat chocolate >.< and I like avocados too πŸ™

    But I like that I can eat rice πŸ˜€ I love rice and could eat it everyday. Or Asian rice noodles! :3

  • mahreen

    i agree with niki. im also a health freak and i eat bananas, chicken, avocado and especially my favourite fruit: MANGOES!!

    although i consume these foods occasionally and not excessively, they have had no negative impact on me πŸ™‚ Thanks to God!

    I think eating healthy and fresh food and exercising regularly is the best way to live a happy and full life!

  • Daphne

    This is interesting… I am AB+ and a celiac, so wheat is obviously out… but I also gave up all dairy and meat products last year by choice and have never felt better!

  • Chris Wood

    I recently looked up the AB+ blood type diet. It’s really close to Ayurveda (Pitta) type diet. I’ve been trying the blood type diet and having great results from it. It’s so awesome to not think about food and to have energy to get through the day without having to take stimulants

  • abebe

    I have ab positive blood group

  • brandon

    I have ab and the problem im having is acne none of my brothers had bad acne im the only one and i do have different problems then they do like i wake up with head aches if i try and sleep in idk if its because of my blood typr or not i know i dont need to diet im 19 years old and i weigh 120 please help me with answers

  • wolf5659

    So basically, Don’t eat anything and just die?…

  • MovingToNevada

    This is total bunk.

  • Samantha Thomas

    This is total Crap, I eat all the stuff it says an AB person shouldn’t eat and I’m perfectly fine.

  • Paul H & Anthy

    Eating right requires discipline, knowledge and trial and error. It is worth the adjustment period

  • Michelle

    I have been battling those same effects too. I found that eating gluten gave me migraines , not tummy issues. I would have severe headaches for three days and not even narcotics could knock it out. Only after my body got rid of the gluten did I feel better. I’m not saying it’s easy, but it’s so worth not having that pain. When I slip up and eat bread, cake or pasta, it immediately hits me now. For your own health, try it. As for the acne, I believe it ties into my hormones. When I more stressed, I break out. I’m a woman so I also deal with breakouts each month before my cycle. Try to reduce your stress, get exercise and the to have some fun. Hope this helps.

  • Waseem Mehar

    I think this may help the AB’s including myself understand why our stomach’s are fine 99% of the time despite eating meat consistently. Copy and pasted from some website below:

    “Multiple antigens make Type ABs sometimes A-like with weak stomach acid, and sometimes B-like with genetically programmed for the consumption of meats. Type AB do best when their muscle tissues are slightly alkaline.Type ABs can’t metabolize meat efficiently because of low stomach acid, so it is important to watch the portion size and frequency. Chicken has lectin that irritates the blood and digestive tracts of Type ABs also.”

    I’m guessing we’re all B-Like

  • Erica AndJojo Watson

    Don’t know why ppl have a hard time understanding this or calling it ‘bunk’. It’s like not believing blue eyes are more sensitive than brown. If you can’t understand the science behind it, do yourself a favor and don’t comment!! I guess some folks not being able to accept all blood types is ‘bunk’ too. Lol

  • Siphiwe

    Me too

  • Kaneye

    Wow, Now that is radical. As if that was the only food choice in life.. Perhaps a little healing on the spiritual side might help…

  • Kaneye

    To each his own…

  • Ivan not the terrible

    and I just started eating my favourite avocado because of the benefits ….and now I must Stop πŸ™ ….

  • Brad Heiner

    Im with you!! Im AB pos Been eating most of whats on the list all my life…WTF

  • Roobah

    I find it interesting, being AB type, how many of the do not eat foods are on my “do not like” list, or “cannot eat” list (most of the suggested – and I’m not a picky eater) – except in the dairy product list, since I’ve got Scandinavian heritage, I can easily tolerate dairy products, and often use them as protein substitutes for the meat I don’t eat. They got it backward with chicken and turkey — OH BOY, I cannot EVER eat turkey, we do NOT get along. For meat? I recommend lamb/mutton for anyone who can’t tolerate a high fat meat diet. Fruits: 100% hit it, I don’t really like or enjoy any of those fruits. I much prefer berries. Yummy! Maybe lack of acid in the stomach explains why although I love almonds, they give me a HUGE belly ache if i eat more than a couple at a time.

  • Don

    I did not develop psoriasis until I was 40. It was all because of chicken. So, just because you’re fine now, it doesn’t mean you won’t run into problems later.

  • healthy 2015

    omg that was so funny I can imagine your face when you reading this article. This article doesnt give you any amount of joy. You might as well just eat grass and drink water and keep it moving. Thanks for the laugh it was right on time.

  • Nicole

    But I love avocados and chicken πŸ™

  • Zaks

    ha ha ha hahaha ha Wolf54659 you just killed me. I’m stitches LOL

  • Quinton Bell

    This is hopefully helpful. I do have to mention that I’m having problems with sinus and that I have stomach acid eating my teeth away. This will be hard to apply but I will give it a try

  • Brenda Horner

    What science? There is no scientific basis for these recommendations

  • Brenda Horner

    This is total crap! First thing would be actually recommending that someone eat tofu??? That’s where he lost me, that stuff is so dangerous to anyone’s health! It destroys the thyroid gland and disrupts hormone function. If the person who wrote this book doesn’t even know that kind of basic information how can I believe the rest of what he is saying?

  • Stephanie Baker

    Some here say there isn’t enough “science” to back this up, but I don’t need any science to tell me that this is right on point with my food allergies because it 100% is! Before I learned about this AB Blood type diet, I was already sensitive to most of the foods on the avoid list, or I didn’t like that food. I am allergic to bananas, mango, corn, wheat, peppers, black beans and I have sinus problems with dairy and if I eat chicken I get a food poisoning like response, even with organic chicken and I made sure it is cooked well done. Anyways, I’m happy to know this now as it all makes sense. Makes me feel a little better πŸ™‚

  • Nichole

    I’m AB+ and most of the foods I enjoy the most are on this list. I also developed an auto immune disease. I’ve had psoriasis/psoriatic arthritis since puberty. I’m actually extremely distraught about the avoid list. I don’t eat much red meat but I love my venison, chicken, seafood, beans, of course I love mangos and bananas and oranges. How is it even possible for me to not eat food that I love? Isn’t there just a way to increase stomach acid production when we chose to eat certain foods. I love vinegar, balsamic especially and anything pickled.
    Problem-I don’t feel good 80% of the time. Always fatigued, nausea, hormonal, immune suppressed bc of auto immune disease.
    Looking for new ways to feel better but seems like everything I enjoy or is supposed to be good for you AB+ people should avoid. They should just give a list of things we can eat instead of what we can’t. Probably much shorter. Everyone is different, I guess trial and error are my best bet. Start eliminating one thin at a time and see what happens. Only about 5% of the population have this blood type (so I’ve read). I guess it’s time to dig deeper into peer reviewed journals and case studies.

  • Houri Clb

    Im allergy to chicken & eggs any poultry actually and some seafoods too. Hahaha. I f i follow this diet the only thing i can eat is rice. Dang what a hard life to live.

  • Suzanne Rice

    I am AB and my stomach would disagree with you.