Eating Traditional Foods and the Blood Type Diet

Eating Traditional Foods and the Blood Type Diet:

As many of you are aware, I embarked upon a journey in eating Real/Traditional Foods a little over a year ago. (For anyone new to my blog, you can read more on this in Part One, Two, and Three of a series I posted about my journey). I have been full steam ahead on traditional eating (sans most gluten since Tiny is gluten intolerant). Here is something important to share…I was a non-red meat eating person for 15 years. When I started following a Traditional Diet, I slowly incorporated red meat into my repertoire of food. At first I felt guilty since I choose not to eat red meat for reasons related to animal welfare.

However, as my health improved, my guilt lifted. (There will be a forthcoming post about Traditional Diets and Vegetarians in which I discuss how I was able to feel good about eating meat again as I was both a vegetarian and a non-red meat eater at different points in my life).

Fast forward to March of 2011. I will spare you ALL of the gory details but I think that what I am about to share is VERY important for anyone currently following a Traditional Diet or thinking about incorporating all or some elements into your current nutritional lifestyle.

I started to experience some major issues in the elimination department, i.e. intestinal issues! I am well versed in the gut, digestive process, bowels, etc… as Tiny had her fair share of elimination issues as well. (Again, I am sparing you details but let’s just say that I actually thought that I may have colon cancer.) Things were getting pretty scary.

Tiny sees an anthroposophic pediatrician. (Click here to read a short post I wrote about anthroposophic medicine). This wonderful man will actually spend time treating the whole family so I mentioned my little issue. He immediately began asking me about my food intake and after a lengthy discussion of my historical eating patterns and current eating trends, he raised an eyebrow and asked me my blood type. I am AB+. He nodded his head and informed me that not only do I have the second rarest blood type (and should be donating and privately storing my own blood in the event of a shortage) but that my blood type did not allow for me to properly process the proteins found in red meat. Protein digestion is difficult for A and AB blood types in general but red meat is a killer. He surmised that my entire intestinal track was severely compromised as it tried to break down proteins that it truly could not handle. Plus, after 15 years of not eating red meat, my entire system was trying to adjust. Add to this the mass amounts of antibiotics I was on after having surgery in April and my gut was just damaged period. Eating what my body physically is best able to handle is a pretty big deal. So I explored this further.

Some of you have probably heard of the Eat Right for Your Type diet plan. I certainly had and had previously read a lot about it. There are many arguments in favor of it but just as many against it. Quite frankly, I understood the science behind it but at the same time sort of saw it as the next fad diet. So I never really paid much attention to the whole idea. Until now. The idea that my blood type was responsible for some of my gut issues is actually fascinating to me.

I have dug into researching the links between your blood type and your food intake. There is a lot to this, more than just your blood type. Gender, ethnicity, age, and genetic abnormalities can all affect the “eat right for your type” concept. Your overall gut health also will greatly contribute. So I would advise anyone undertaking a blood type diet to really, really do your research. However, there is a lot of evidence that points to specific foods being better and easier for your body to handle if your blood type is taken into consideration when making food choices.

Traditional Diets and Blood Type Diets are VERY compatible. You can still follow each and every tenant of a Traditional Diet. Since traditional foods are so varied, there will be lots for any blood type to choose from. And with the blood type diet there is no hard and firm recommendation as to how to prepare your foods. So you can still cook with coconut oil and butter, soak your grains, ferment compatible foods, and take fermented cod liver oil!

I wrote the above post about six weeks ago and as usual, got sidetracked and have not yet published it. After further research and experimentation, I still believe that there is definitely something to blood types and food compatibility. However, after reading Gut and Psychology Syndrome by Natasha Campbell McBride, I have become much more aware of how much your gut health plays a role in your ability to process the foods you eat as well as absorb much needed nutrients, vitamins, and minerals. Your gut health is also responsible for staving off basically every disease under the sun. A healthy gut means a healthy mind, body, and soul. And unhealthy gut leads to doom and gloom.

Since writing the above post, I have also undergone some additional medical tests and big surprise, found out that I have celiac sprue (gluten intolerance) and possible ulcerative colitis. I have to have a colonoscopy in August (try not to be jealous) and this will give me a definitive answer on the colitis as well as anything else lurking.

Why share this with you? And why get sidetracked from what was supposed to be a post about blood types and nutrition? Simple. First, in an effort to restore my gut to its best possible health, I am undertaking a huge dietary change known as the GAPS diet. The diet is based on research done by Natasha Campbell McBride and has been met with huge success. (Stay tuned for next week’s post discussing the GAPS diet in more detail.) Second, the GAPS diet includes eating lots of animal protein and fats and apparently my AB blood type is going to prove problematic with this type of eating. Or is it? Well, that is what I am going to find out. This will be the true test. If and when I get my gut clean and pure, will I be able to digest and absorb fats and proteins better than I am now OR will my AB blood type continue to limit my ability to enjoy these foods? I can’t wait to find out!

Back to my original post…

Yes, this post is looooooong. But I wanted anyone interested in a blood type diet to have all of the information they need in one place. So continue reading for some additional information on blood types as well as 4 charts outlining what foods are good, bad, and neutral for your blood type.

But first, a little behind the science look at blood types and food compatibility.

In 1996, Dr. Peter D’Adamo published a book in which he outlined a diet based on different blood types. Although the “Eat Right for Your Type” diet gained popularity because of Dr. D’Adamo, he was not the first or the last doctor or nutritionist to discuss the idea of blood type and food intake. Therefore, I am not going to credit him with the discovery of the blood type diet. In addition, I am not looking at the blood type diet as a weight loss diet plan. I am looking at it as part of an overall health picture for the human body.

Ok, enough of that. The theory with this nutritional approach is that each blood type has specific antigens that control bodily function, such as the immune and digestive systems. When foreign particles enter the body, the antigens either let them through or recognize them as threats and attack. The theory is that the blood’s antigens react in a similar manner to foods, designating them as acceptable or threats. Therefore, knowing your blood type – either A, B, AB, or O – will help you distinguish which foods are best for your body.

And if you want to get a little more scientific….

Lectins, tiny molecules found throughout the nature, predispose the interaction between foods and each blood group. Lectins are known for their ability to cause agglutination (binding) of some molecules, such as carbohydrates, for example. However, the nature of lectins, as well as their actual role, still remains undiscovered.

In the theory of the blood type diet eating wrong foods leads to a situation, when lectins cause red blood cells to stick together. Of course, such bound cells are bigger in size than individual cells, and it gets more and more challenging for them to travel through the tiny capillaries in many organs of the human body. As the result, the blood capillaries begin to narrow and finally clog up, causing kind of micro infarctions in many vitally important tissues of the human body.
That is why the blood type diet works to show people what types of food are allowed for specific blood type and what products should be avoided in order to prevent the process of red cells agglutination by lectins.

Besides, the blood type diet says that there is also a connection between one’s blood group and the level of stomach juices. For example, people with blood type 0 have the increased level of stomach acid, which may lead to ulcer development. In this situation eating meat may really help, because transforming the roasted beefsteak into fuel for human body requires much more stomach acid than it is needed to digest veggie salad, for example.

Here is a look at each blood type in more detail.

Type A

People with type A blood have a hard time digesting animal protein, and benefit more from a diet rich in fruits, vegetables and grains. The production of hydrochloric acid in the stomach is low for people with type A, and therefore animal protein is not easily digested. Type A blood people are usually lactose intolerant, too. By eliminating meat and dairy from your diet, you will begin to lose weight and your body will respond positively.

Type B

Although blood type B people can handle almost all foods, some foods will cause weight gain. Foods to avoid include corn, buckwheat, sesame seeds, peanuts and lentils. Type Bs can’t handle gluten in wheat products, so switching to a gluten-free diet is beneficial. Unlike the other blood types, type Bs can handle dairy products. Types Bs will also benefit from green vegetables, lamb, mutton, rabbit, liver, turkey, eggs, fish, licorice tea, soy, olive and flaxseed oil, oatmeal, millet, rice bran, spelt and puffed rice.

Type O

Type O is the oldest blood type in human history. Those with type O digest meat better than any other blood type. Unlike type A, type O people produce a lot of hydrochloric acid in the stomach. However, Type Os have a hard time digesting dairy products and food containing gluten. The best diet for a type O is a greater ratio of proteins and less dairy and gluten. It would be best to exclude all dairy and include gluten-free foods in your diet.

Type AB

Blood type AB is the most “recent” type in terms of human evolution, and is the rarest of all blood types as well. Like type As, people with type AB don’t produce a lot of hydrochloric acid in the stomach and therefore have a sensitive digestive system. However, animal protein is still important for type ABs. 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. Since I am a Type AB, 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.

And now, the moment you have all been waiting for…the four charts which break down everything you ever wondered about which foods are which for which blood type!









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  1. says

    I haven’t had a chance to read this whole post, because, as you know, I have two pairs of tiny hands grabbing at me. But, I just wanted to say I’m excited to finish reading this and comment in more depth. I’ve mentioned I think my hubby and eldest daughter are allergic to gluten. Well, he had to have a colonoscopy earlier this year because of elimination issues. The tests came back negative, everything looks fine, yet he is still suffering.
    I think I need to have him tested for Celiac disease and we absolutely MUST change our diet. It’s becoming crucial.
    I probably won’t be able to finish this until tonight, but thank you for sharing.

  2. says

    Two years of eating for Type A – ZERO zero SINUS infections! I had them twice a year, religiously – sometimes requiring two antibiotics to get off them. Victory! I live to eat now & my Blood type plays a huge role in my health. I practice but don’t preach – I’m single and it’s easier to eat like I do – can’t complain at ALL! Good luck!

  3. Brin says

    Just found your blog and am loving it!!! Keep up the good work. Will add the type A food list to my kinesiology tested list and anti-cancer list. Will keep you posted on any major developments. If you fancy a read on my own blog about my self-healing and other stuff (its by dar not as ‘professional’ as yours but am about to create a website as we speak) have a look at – have recently advocated the “Amazing Liver and Gallbladder Flush” by Andreas Moritz. Am doing my 2nd one tomorrow and can only HIGHLY recommend it!!!!!

    Lots of LOVE, Brin

  4. says

    @Brin Thanks for your flattering comments! :) I appreciate you stopping by and introducing yourself. Your blog is now in my reader! Beware! :) I am very interested in hearing more about your experience with the flush. I have actually heard some pretty good things about it!

  5. Felicite says

    Firstly I want to congratulate you on a fabulous blog, I always get a warm and fuzzy feeling when I read your posts and have recommended your site to a lot of wonderful women who I think will enjoy your research and honest approach to good health and living.

    I have done a lot of research on eating for your blood type, but I always hit a brick wall when I ask the question about Negative blood types. I am O type negative, and when I read about the food I should eat as an O type, it just doesn’t fit! [for me personally] I am always interested in what anyone has to say on this subject. having O type negative blood in my research seems to be very very different to that of O positive.

    In saying that Virgin Coconut Oil has worked wonders for my family and puppy, I have seen fantastic results and send people to your site often when I don’t shut up about it lol

  6. says

    I just found this blog on your page. I’ve been very interested in all of the recipes and uses for coconut oil, as I’m trying to incorporate it into my daily routine.

    I have been knowledgeable about the Blood Type Diet for many years now, and really do believe in it. For example, I’m an A-. I’m allergic to shrimp, and it should be eliminated from my diet. I, too, was a vegetarian for many years, until I met my meat and potatoes hubby. LOL. My hubby is an O+. Our daughter is A+, and she doesn’t like to eat much meat, including poultry, so I have to watch that she is getting enough protein.

    I love how you have broken it down a little more in your blog, as it shows it where it is a little easier to read than all the books that go along with it. I, for some reason, had missed the part of dairy and the A type. I’ve never been big on drinking milk. I had to force myself to drink it when I was pregnant with my daughter, and then it had to be chocolate, so I could choke it down.

    I’m working on changing my habits, but it’s hard for me to make vegetarian for me and my daughter, with a meat eating hubby. I can’t make 2 meals, just for the 3 of us, so it is a little difficult, but that’s my goal going through the next year, to get us all on track of getting healthier.

    Thanks so much for all of your helpful information. I truly appreciate it, and enjoy the way you write, as it’s easy to understand (versus reading the medical sites and so on). Thanks again!

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