What is it?
The Blood Type Diet is a diet plan for people who are looking for a science based approach to dieting. It takes into account your unique blood type, which then gives you the ability to know what foods are right for you.
This diet is based around the idea that depending on your blood, certain foods may actually be harmful and cause unwanted health issues. There are also other claims such as:
By using the food list provided, you’ll be able to properly digest food, have increased energy, and even prevent diseases.
Though there are slightly different styles to approaching this diet, the overall consensus from those who support this idea do suggest one thing. You can only eat foods that your blood type is best suited for.
For certain blood types this might meant a strictly vegetarian diet. Therefore, you won’t know how to start this diet until you know your blood type.
Foods Allowed by the Diet
What you can choose to eat depends on the type of blood you have:
Type A: Only fruit, vegetables, grains, beans, and legumes that is preferably fresh and or organic. No meats are allowed.
This blood type has the most sensitive immune system; therefore you have to be aware of what you eat even more.
Type B Lots of green vegetables, eggs, low-fat dairy, and certain meats are allowed. You can’t eat corn, buckwheat, wheat, lentils, peanuts, tomatoes, peanuts, sesame seeds or chicken.
Type O: This focuses highly on large amounts of protein from lean meat, fish, poultry, and vegetables. Not much beans, grains, or dairy is allowed. Many supplements are also suggested in order to avoid stomach issues, which this blood type is susceptible to.
Type AB: Green vegetables, tofu, and dairy are allowed. People with this blood type have low levels of stomach acids, so caffeine, alcohol, and cured meats should be avoided.
Even the types of exercise that you should do depend on blood type. You also aren’t given the option of personal taste.
For example, if you’re type 0 and are vegetarian or don’t like eating lots of protein, you’ll be forced to do so.
Personal preferences whether because of taste or ideologies are not supported. You are forced to eat only particular foods, otherwise you’ll experience weight gain and health issues.
Certain forms of bacteria have a preference over certain blood types. Also, microorganisms also favor specific blood types as well. According to the Blood Type Diet, this choice can either help or hurt overall health.
The issue is that many scientific studies have shown that this diet does not work. The Belgian Red Cross ran a study that showed:
“Blood type diets lack supporting evidence”
“No evidence currently exists to validate the purported health benefits of blood type diets”
Plos ONE also ran a study that showed:
“findings do not support the ‘Blood-Type’ diet”
Another review by Web MD also confirmed:
“no evidence exists to support benefits of blood type diets”
The overwhelming consensus is that this diet does not work. Not only is there a lack of evidence, but also it can be extremely limiting and potentially harmful. Having to eat just certain kinds of food groups can deny you from getting a well rounded nutritional profile.
One major website advocating this diet is called Dadamo.com. According to them:
“If, after three to six months of eating right for your type, you are not healthier or losing weight, there are several options t explore”
This is a long time to have to have to continue eating only select foods. Since it’s in the FAQ section, it’s likely that many people on this diet have wondered why they’ve failed to experience change.
Spending this much time eating potentially harmful foods can be a possible danger to our health. It’s also admitted by this same site that there’s:
“little data currently available”
So it’s still unclear whether or not your blood type is actually a factor, or why some people don’t experience any changes. Often claims like these are made when a diet has not been proven to work. It’s a way for the makers to escape liability, making it seem like this is a rare case.
Better Alternatives to the Diet
Due to the studies that show the Blood Type Diet isn’t useful, it’s important to seek out better alternatives.
This plan has not been proven to work, and the science provided by those who push this diet is not credible.
This is good however, as for those with certain chronic diseases, eating just a limited amount of food can be harmful. Web MD mentions:
“Blood Type Diet also fails to address other conditions such as heart disease, high blood pressure, or cholesterol.”
“Science is stacked behind traditional recommendations… not restrictions based on the type of your blood”
The possibility for major issues is high if your body can’t handle high protein, or limited protein. Depending on your blood type, there’s no way of being able to make changes. You’d be forced to eat just a limited kinds of foods.
Due to the fact that certain blood types require you to eat more plant based foods, it’s possible to lose weight this way since eating many calories this way can be hard. Also, it can be healthy to eat more foods like this.
However, it’s no indication that the blood type makes a difference. That’s why Authority Nutrition has concluded:
“evidence supporting the blood type diet is particularly underwhelming”
So there’s really no reason to believe this diet would work. The science shows that any benefit is likely due to the addition of only natural whole foods, instead of relying on processed or heavily caloric foods.
Another issue to contend with is the lack of weight loss. According to the main Blood Type Diet book:
“During these periods, it’s common not to lose weight”
“Patience and 100% avoidance of all avoid foods is called for during this healing period… can last a year or more”
So it’s possible to not lose weigh even if you diet for a full year or even more. This makes it hard to file a complaint against this diet, since if you were to not lose weight, the makers will claim that’s natural and your body’s doing what it needs to.
This makes it a diet plan that’s not certified to work, and unfortunately you wouldn’t be able to complain and get a return of money. You’d have to stick with this diet and assume the lack of weight loss is natural.
The idea that your blood type can determine what foods you should eat seems convenient. However, the kinds of foods you’re allowed to eat are incredibly limited. For type O people, they’re limited to eating high amounts of animal protein.
It can be hard and may possibly lead to nutritional deficiencies. You’re also forced to keep eating the same kinds of foods. Luckily, this diet has not been proven to be effective.
Multiple studies have confirmed that no science is available to prove this diet is safe or effective. Your blood type has no effect on the dietary choices you can make. It’s because of this important reason that the Blood Type Diet would not be a good choice. There are much better options that offer more variety and that are based off of real science.
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