The Perfect Diet for Blood Type B

By: Michael Lam, MD, MPH



Diet considerations for blood type BThe sturdy and alert Blood Type B individualss are usually able to resist many of the most severe diseases common to modern life, such as heart disease and cancer. In fact, a Type B who carefully follows the recommended diet and prevents undue stress in the body can often bypass severe disease and live a long and healthy life. Type Bs are more prone to immune-system disorders such as multiple sclerosis, lupus, and chronic fatigue syndrome.

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The Type B Diet is balance and wholesome, including a wide variety of foods.

For Type Bs, the biggest factors in weight gain are corn, buckwheat, lentils, peanuts and sesame seeds. These foods have different lectin that affect the efficiency of the metabolic process. The interference of these lectins causes stress to the metabolism, and creates imbalances in the body’s NeuroEndoMetabolic (NEM) stress response, resulting in fatigue, fluid retention, and hypoglycemia. The gluten lectin in wheat germ and whole wheat products can often trigger sensitivity or reactions and create inflammation and stress in the body, and so also adds to the problems cause by other metabolism-slowing foods in further dysregulating the body’s NEM stress response functions.

Learn to eat right for your blood type BIt is important to leave off chicken for Type Bs. Chicken contains a Blood Type B agglutinating lectin in its muscle tissue, which attack the bloodstream and potentially lead to strokes and immune disorders. Type Bs thrive on deep-ocean fish, but should avoid all shellfish. The shellfish contain lectins that are disruptive to and causes stress in the Type B system.

Type B is the only blood type that can fully enjoy a variety of dairy foods as their physiology allows them to digest and metabolize the sugars in dairy products without slowdown or stress.

Most nuts and seeds (especially peanuts, sesame seeds and sunflower seeds) are not advised for Type Bs, they contain lectins that interfere with Type B insulin production. Interfering with the metabolic process in this way can have severe consequences not only by disrupting and imbalancing the NEM stress response system, but also in creating long term disruptions to energy metabolism that can manifest later in life as diabetes.

Similarly, wheat is not tolerated well by most Type Bs. They contain a lectin that reuce insulin efficiency and failure to stimulate fat “burning”. Corn and buckwheat are major factors in Type B weight gain, they contribute to a sluggish metabolism, insulin irregularity, fluid retention, and fatigue,span>all effects that create stress for the body and generate further load on the NEM stress response system. Also, Rye contains a lectin that settles in the vascular system, causing blood disorders and potentially strokes.

Blood type B diet rules Fruits and vegetables are generally well tolerated and should be taken generously. However, tomatoes should be completely eliminated from Type B diet.It has lectins that irritate the stomach lining.

The benefits of this kind of diet for those with Blood Type B suggests this blood type may be associated with certain characteristics of the stress response. In general, the body handles and counteracts stress through the neuroendometabolic (NEM) response circuits, functional groups of organs and systems in the body that work in concert to prevent stress from destabilizing the body’s homeostasis and negatively affecting its functions.

There are limits to the human body’s ability to tolerate stress, however, and if the level of stress remains high and overtops the capacity of the NEM circuits, the constituent organs and systems will begin to wear down and malfunction, bringing up unpleasant symptoms of excessive stress.

The Blood Type B diet calls for many foods that help the metabolism to function smoothly, which is very helpful for the metabolic response circuit of the NEM. Ensuring the continued function of metabolic processes in the body is important to avoid the metabolic symptoms of stress including irritable bowel syndrome (IBS), weight gain and excessive inflammation. However, it is just as important to ensure the rest of the NEM circuits remain functional and operating smoothly. This entails making sure that excessive levels of stress do not encroach on your daily life. A combination of a proper low stress lifestyle and a diet matching your blood type – in this article specifically referencing Type B – will help to ensure optimal function in the body.

More Information for Blood Type B

See Detailed Type B Food Chart
A comprehesive list of what foods to eat on a Blood Type Diet

blood type b




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35 Comments

  • Jorge says:

    Why tomato? Why?? 🙁 </3

    • Dorine Lam RDN says:

      You have some very good valid questions. Blood Type Diet is based on how the protein in the food called lectin affects blood agglutination. The diet is founded by Dr. Peter D’adamo. There are some principles in the blood type diet that are not accepted in conventional medicine and their recommendations. I.e. coconut and soy are some of these discrepancies.

      Dorine Lam, RDN, MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • Kerona says:

    It is very weird to be reading all this because it points out all the things I hate to eat before even reading about my bpositive diet. I always pick the tomatoes from my meal, coconut gives me indigestion, I’m a lover of oatmeal porridge but not cornmeal, whenever I eat melon, my taste buds normally wouldn’t acquire the taste.I realised from a teenager that whenever I have conch soup, my forehead breaks out with small pimples, so I avoid all those. This article is very helpful, I have downloaded it and paste in my kitchen as a guide to always remember.

  • Dawn V. says:

    What type of bread with my B Neg Blood type can I eat? Is there an oatmeal or other grain bread I can eat? I have tried gluten free bread and don’t like it.

    • Dorine Lam RDN says:

      You can try the ezekiel bread.

      Dorine Lam, RDN, MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • Misgana shimelis says:

    I want to know everything about my blood type

  • T Arledge says:

    I am assuming that eggs are out of the question since I can’t have chicken with this be correct thank you so much

    • Dorine Lam RDN says:

      Egg is neutral for blood type B.

      Dorine Lam, RDN, MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • Nora says:

    I heart tomatoes and chicken and know I can’t eat them why the tomato

    • Dorine Lam RDN says:

      This diet is based on a certain protein found in all foods call lectin, and how this lectin reacts to the blood that are specific for each blood type.

      Dorine Lam, RDN, MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • Frederick Dalimpuo says:

    Seriously how can I afford tomatoes in my diet because it’s almost used in all my diets.But Sir I always feel fatigue,is it as a result of the tomatoes I take?
    Thank you

    • Dorine Lam RDN says:

      There are so many reasons for your fatigue, diet can play a major part. You can avoid it for a month and see if there is any improvements. Also read my articles on adrenal fatigue syndrome to shed some lights for you.

      Dorine Lam, RDN, MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • Geraldine says:

    Sir,
    Im so happy to know about your website about blood type diet food.Thank you so much for sharing to us your knowlege about this.I hope and pray that God bless you more knowlege and wisdom to do what He want you to do.

    Sir I would like to know if monggo bean is allow for blood type B .Thanks

    Thank you

    • Dorine Lam RDN says:

      Thank you for your kind comments. I do not know whether monggo bean is allowed for blood type B.

      Dorine Lam, RDN, MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • Melissa says:

    B+ can’t eat chicken because of the agglutinating lectin in the muscle tissue. What about chicken broth? I wouldn’t be eating the meat. Also, what is it in seltzer water that is bad?…it’s just water

    • Dorine Lam RDN says:

      I don’t know about chicken broth, I am assuming that it would have the same lectin effect as eating chicken.

      You ask a good question about Seltzer water, and I don’t know. The blood type diet is fitting for most of the people. Due to tremendous variation in individual constitution, there is no guaranteed success with it. If you would like to follow the blood type diet, I would recommend that you follow it vigorously for 3 months, even though you don’t see much harm or benefit in certain food. After 3 months, if you see no improvements in your health, then you can deviate and use the blood type diet as a general guideline and not overeat the foods that should be avoided for your Blood Type, but take them with care and in small amounts.

      Dorine Lam, RDN, MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • Reginald L Williams Sr says:

    This is great to know,in order to heal urself thank u Sovcpr

  • Lil says:

    So basically, as a B+, I should be giving up all my favourite foods, according to this. 🙁

    • Dorine Lam RDN says:

      I am sorry to hear that all your favorite foods are in the avoid column. If you have lots of issues with health or weight control. I would try this diet for a couple months and see if your symptoms improved. If you do improve, then it is a good diet for you to follow long term.

      Dorine Lam, RDN, MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • Keneuoe says:

    I am blood group B+. Which food should i use for breakfast?

  • Tara says:

    I’m a B+ bloodtype and have a very difficult time gaining and maintaining a healthy weight. I have a history of gastroparesis and cannot tolerate raw vegetables. Most of these websites are geared towards weightloss, but as a 36 year old underweight woman with problems digesting food what foods woyld be most beneficial for healthy weight gain?

    • Dorine Lam RDN says:

      Soup and stew would be easier on the digestive system. You should also take some digestive enzymes to help with digestions. You can find some good ones from http://www.supplementclinic.com.
      Whether it is for weight gain or weight loss, same principle. Eating the right kind of food for your body reduce the energy expanded to digest the food, so you may gain weight if your body needs the increase weight.

      The blood type diet is fitting for most of the people. Due to tremendous variation in individual constitution, there is no guaranteed success with it. If you would like to follow the blood type diet, I would recommend that you follow it vigorously for 3 months, even though you don’t see much harm or benefit in certain food. After 3 months, if you see no improvements in your health, then you can deviate and use the blood type diet as a general guideline and not overeat the foods that should be avoided for your Blood Type, but take them with care and in small amounts.

      Dorine Lam, RDN , MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

  • rowena says:

    is potatoes ans sweet potatoes good for blood type B

    • Dorine Lam RDN says:

      Sweet potatoes are beneficial for blood type B.

      Dorine Lam, RDN , MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

      • Getenesh Alayou says:

        What about white potatoes? sweet potatoes are not available in all seasons and are not used as main dishes in my culture. So, i almost always use white potatoes. Is that bad for blood type B?

        • Dorine Lam RDN says:

          All kinds of potatoes are allowed for Blood Type B.

          Dorine Lam, RDN, MS, MPH
          Registered Dietitian and Senior Holistic Nutritionist

  • CARLY says:

    I’m an Africa American woman with B- blood type. I’ve given up meat because of weight gain and inability to lose weight. I’m getting my protein from quinoa and Bulgar, faro, and beans. I’m not sure if these are buckwheat. So a little help on my diet would be nice.

    • Dorine Lam RDN says:

      No, they are not buckwheat.

      Dorine Lam, RDN , MS, MPH
      Registered Dietitian and Senior Holistic Nutritionist

    • Sidney says:

      Carly, I too am AA, a B, and started the diet 2-3 years ago. Before it I was not eating meat, but because of it I started to eat meat and have lost as well as maintained my weight (for the most part). Consider being specific with the meats you eat just as the diet says.

  • Shelia Whorton says:

    Dr. Lam: I am B positive. I eat a lot of quoina. Is that okay?

    Thank you.

  • Jeannie says:

    I don’t like lamb , rabbit , venison also it’s not in the grocery store .

  • Cheta Balizer says:

    Do you have any recipes for B + bloodtype? My staples in life have been pinto beans, avocados, corn tortillas, tomatoes and coconut oil, peanut butter, sesame seeds, & sunflower seeds. So could really use some ideas about meals on this new diet. Thank you so much.