What Is the Blood Type Diet?

The Blood Type Diet plan recommends that you eat according to your blood type. This means that you would eat different foods based on what blood type you have.

The blood type diet, which was popularized in the mid-1990s by naturopathic doctor Peter D’Adamo, is based on the idea that people with different blood types should eat different types of food. D’Adamo published a book detailing the diet’s theoretical basis and how to follow it successfully.

D’Adamo’s book suggests that we can improve our health by eating foods that are similar to what our ancestors ate, based on our blood type.

You should know your blood type. The question of whether you have a history of mental illness is one that doctors may ask you in the emergency room. The determination of whether someone has rhesus, commonly referred to as RH, is separate from the determination of blood type and can be positive or negative.

There are actually dozens of blood classification systems. Casting doubt on the idea that ABO blood type can dictate what someone should eat, this one fact stands out. The blood type diet is based on the hypothesis that genetics determine blood type and that this, in turn, can determine your nutritional needs.

hair color is determined by genetics, but there is no definitive link between diet and hair color. This blood group information is valuable, especially if you need a blood transfusion or organ transplant. However, you should not let it influence your dietary decisions any more than you would let the Kardashians influence your decisions.

Dietary restrictions of the blood type diet

The premise of this diet is that you should eat according to your blood type because it is an evolutionary advantage that our ancestors developed at a certain point in history. The study found that certain types of diets are better for different blood groups. The diets recommended in the study exclude and include certain food groups.

Lectins in beans and legumes

According to this diet, your blood type determines how well you can digest certain types of lectins, and makes some lectins more difficult to digest than others.

Lectins are a type of protein that is found in grains and legumes. It is believed that they help to keep pests from eating plants and their seeds. Some plant lectins are toxic, but they can be rendered harmless by cooking. Lectins are indigestible if they are consumed raw, but cooking breaks them down and makes them safe to eat.

Raw beans have an unpleasant taste and texture. If you haven’t, we don’t recommend trying. If you’ve ever soaked oats in water until they are soft to eat, you may have noticed that you subsequently had mild diarrhea.

We are saying that plants which contain lectins need to be cooked in order to be digestible, regardless of your blood type. It’s just nutrition basics and scientific facts. Lectins can not be digested by anyone, however we as a species have discovered that cooking beans, legumes, and pulses makes them digestible for all.

High-protein foods

The diet claims that people with blood type O are better able to digest meat because this blood type emerged when meat was the main source of energy.

We were in our earliest stage of evolution when we hunted for meat and gathered wild, seasonal plants. Although it may seem like it, humans did not sit around chewing on meat all the time. Hunting is difficult and often did not result in catching any prey.

Although we may have thought we rely heavily on meat in our diets, this may not be the case. Plants are not as resistant to the effects of time as bones are, so we may not need to depend on meat as much as we thought. This indicates that there is more proof of our meat consumption than our plant consumption. We’ve found a lot of dinosaur bones because paleobotany is not as interesting.

This diet postulates that the oldest blood group is best at digesting meat and that later blood groups should avoid it. Meat digestion depends on a lot of things, including the context in which it is eaten. What it doesn’t depend on is your blood type.

Nowadays, many people take a medication called proton pump inhibitors (PPIs) to manage heartburn. PPIs work by decreasing stomach acidity. If you stop eating meat, your body will produce less acid. This makes it harder to digest meat if you start eating it again.

No dairy for you?

This diet posits that later blood groups emerged as a result of digesting milk products.

Milk, cheese, cream, and yogurt came after meat and plant domestication. Dairy provided a sustainably way of producing an energy-dense source of nutrition without having to kill and eat the animal that made it.

In the blood type diet, this group was aptly named “the nomad” because many nomadic populations depend on their animals for transport, fuel, and food. Fermenting milk allows it to last longer without going bad and makes it more ideal for travel, especially for hard cheeses that are dry.

We can agree that lactose intolerance is a very common phenomenon. Europeans who can digest dairy are privileged. So, up to 75% of people from Eastern Asia are lactose-intolerant, but that doesn’t mean that their bodies don’t produce the enzyme lactase. Lactase is the enzyme that helps digest dairy.

Blood type O — Diet

According to this diet, people with blood type O have the oldest blood type, and would therefore thrive on a high-protein diet. However, the assertion that O is the oldest blood type is disputed by most research, which focuses on their geographic distribution.

However, some dietitians recommend eating more high protein foods, such as lean meats, vegetables, and legumes, and avoiding processed meats and sugary foods. There are no specific recommendations for blood type O positive or an O negative blood type diet, but some dietitians recommend eating more high protein foods, such as lean meats, vegetables, and legumes, and avoiding processed meats and sugary foods.

It is also important to note that traditional diets of indigenous peoples (the closest examples we have of primal eating) are mostly made up of organ meats, not muscle, because organs are much more nutrient dense. This begs another question. Different animal tissues contain different nutrients because they have different compositions.

It is not possible to ascertain that eating meat raised on modern methods from streamlined breeds has the same results for the human body. There is no reliable evidence to support the claims made about the blood type O diet, so it is not advisable to follow these recommendations.

Blood type A — Diet

rH values don’t matter when it comes to this diet. This means that if you have type A blood, you should be aware that the diet includes both people who are A+ and A-. This diet claims that people with blood type A should focus on eating fruit, vegetables, and soy protein.

There is no one definitive answer for blood type A positive or blood type A negative.

Here, it’s worth questioning these foods. Soy has been predominantly cultivated in Asia throughout history, rather than in Europe or the Americas. Soy also contains lectins, which may have emerged during the agricultural period in the Fertile Crescent. So really, who is this diet for?

Other researchers suggest that blood type A (negative and positive) might have been the first ancestral blood type, so holes are appearing in this theory. The naturopath, Dr. Peter D’Adamo, believes that each blood type has different personality traits, which is similar to astrology and the pseudoscience of ancestry based on foot shape.

Blood type B Diet

The blood type B diet is designed for people with strong immune systems who can digest dairy products well. People who are good at digesting meat, grains, fruit, and fish are just as good at digesting anything.

There are no specific recommendations for blood type B.

This thinking suggests that only blood type B is designed for modern-day living. If we extrapolate this theory, an omnivorous diet would make all the other blood types quite ill. We are all alive and thriving into our eighties despite the odds.

Sports such as cycling, hiking, and tennis may be enjoyed by blood type B people. This statement is only an opinion and not based on scientific evidence and may be more similar to what is found in astrology rather than dietary advice. It is important to remember that not everything on the internet can be trusted.

Blood type AB Diet

If you have blood type AB, you have a bit of blood type A and B, so you can choose what to eat from each diet. However, according to one of the diet’s most prominent supporters, Peter D’Adamo, you are apparently more at risk of some diseases. Did you know that in addition to his website, he also sells many supplements?

There are no specific recommendations for blood type AB positive or blood type AB negative. However, it is generally recommended that people with AB blood donate blood to people with type A or type B blood, as they are compatible with both.

We can argue that your blood type is not commonly a risk factor for disease. Disease risk is most commonly the result of a combination of genetic risk, environment, lifestyle, and diet. No matter what your blood type is, you can be at risk for developing diseases.

The Proposed Link Between Your Blood Type and Diet

D’Adamo claims that the blood reacts with certain proteins in the food called lectins.

D’Adamo claims that when you consume lectins that are incompatible with your blood type, they will target an organ or bodily system. This causes the blood cells in that area to clump, which can lead to a long list of adverse effects.

The type of blood you have determines how your body will react to different types of food and the lectins they contain. Essentially, D’Adamo believes that you should eat according to your blood type to prevent negative reactions to lectins.

Should You Change Your Diet Based on Blood Type?

No. There is no scientific evidence to support any of D’Adamo’s claims about the Blood Type Diet. Therefore, it is simply a collection of his opinions about nutrition, rather than a diet based on scientific research.

If we are more accepting of fad diets, we might say that it is not fair to dismiss the Blood Type Diet because we do not have studies to refute D’Adamo’s claims. I would say that science does not work that way.

An important part of the scientific method is that if someone makes an extraordinary claim, that person must have extraordinary evidence to back it up. If there is no strong evidence, it is assumed that the claim is not valid.

At the very least, you’d expect D’Adamo to muster a strong argument for why his particular diet regimen works based on how it affects the body (for instance, showing that chicken proteins cause clumping of type B red blood cells in a test tube), but he hasn’t even scaled this meager hurdle.

D’Adamo claimed that there would be scientific evidence to support his diet recommendations soon after publication, but there is very little evidence on the diet and nothing that makes it seem trustworthy.

A review study conducted by scientists at Belgian Red Cross-Flanders found that the Blood Type Diet affects health. Of the 1,415 studies that were relevant, only 16 were designed in a way that would provide useful answers. Of those 16, only 4 were remotely similar to the Blood Type Diet.

As they dug deeper into the research, they found that three of the studies were full of methodological errors, and the one remaining study looked nothing like the Blood Type Diet (it explored how LDL cholesterol levels changed when people with different blood types followed a low-fat diet and used the MNS blood type system, not the ABO system).

Not surprisingly, the researchers found that there is no evidence to support the claim that diets based on blood type are good for your health.

A recent observational study conducted by scientists at the University of Toronto has shown that there are no benefits to the Blood Type Diet.

The study found that people who followed the type A diet had improvements in BMI, waist circumference, blood pressure, cholesterol, and triglycerides. People who followed the AB and O diets saw some improvement, but it was not as significant as people who followed the A and B diets.

There’s a twist, however. Some blood type diets were found to be associated with improved cardiometabolic health, but these associations were not specific to any one blood type.

People who followed any of the three diets- type A, type AB, and type O- all saw improvements, regardless of whether they ate the diet that corresponded to their blood type or not.

And this makes perfect sense.

Most Americans eat an abysmally poor diet. The average American would see improvements in their health if they followed any of D’Adamo’s blood type diets, which include eating healthy foods such as fruits and vegetables, minimally-processed meats, dairy, grains, and eggs.

The chances are good that they would see even better results if they did not put silly restrictions on themselves that make them eat foods they do not like and avoid foods they enjoy.

The true key to better health is not consuming a diet based on your blood type, but rather eating a diet full of nutritious, unprocessed foods.