Back to Back Issues Page
Healthy Food Lover's Newsletter, Issue #008 -- Is One Man's Medicine another Man's Poison?
August 15, 2012
Hello Healthy Food Lovers,

Is One Man's Medicine another Man's Poison?

According to Dr. Peter D'Ádamo - author of a popular Blood Type Diet book - a chemical reaction occurs between your blood and the foods you eat. This reaction is caused by a factor called Lectins.

Lectins are abundant and diverse proteins found in our foods. Certain lectins have agglutinating or clumping properties that can affect your blood.

The foods with the highest lectin activity are grains (especially wheat), legumes (especially soybeans), and nightshades.

These lectins have relatively sticky molecules which makes their binding powers able to attach to your intestinal lining - where they can then wreak havoc.

Also, when you eat a food containing lectins that are incompatible with your blood type - the lectins can target an organ or bodily system and begin to agglutinate or clump blood cells in that area.

The Blood Type Diet

According to D’Adamo, whether your an O, A, B, or AB blood type affects your digestive system - making certain foods good for you or potentially dangerous.

Each of the food groups are divided into three categories: Highly Beneficial ( food that acts like Medicine), Neutral Foods (food that cause no harm to the blood type) and Foods to Avoid (food that acts like a Poison)

He states that your blood type will determine the kind of enzymes that your body will have more or less of - making you more able to digest meats or plant foods for example.

This would kind of explain why some people do well on low carb diets while others prefer more vegetarian lifestyles. It would also explain why one person seems fine after consuming a similar meal - while the other person feels sick.

Blood Type O:

Type O's should avoid almost all grains and most dairy. They seem to thrive on a higher-protein diet than the other blood types.

Beneficial Foods: Beef, Lamb, Venison, Cod, Herring, Mackerel, Olive Oil, Flaxseed Oil, Azuki Beans, Walnuts, Pumpkin Seeds, Spinach, Kale, Sweet Potatoes, Parsley, Romaine Lettuce, Garlic, Onions, Prunes, and Figs.

Blood Type A:

Type A's do better on a more vegetarian type of diet that focuses on plant foods and seafood rather than animal foods.

Beneficial Foods: Cod, Salmon, Sardines, Rainbow Trout, Olive Oil, Flaxseed Oil, Pumpkin Seeds, Azuki Beans, Tempeh, Lentils, Black Beans, Buckwheat, Amaranth, Oats, Rice Products, Garlic, Onions, Broccoli, Spinach, Carrots, Grapefruit, Figs, and Berries.

Blood Type B:

Type B's should eat a balanced omnivore type of diet. This blood type digests dairy foods better than the other blood types.

Beneficial Foods: Lamb, Venison, Rabbit, Cod, Salmon, Halibut, Trout, Cow Milk, Goat Milk, Goat Cheese, Feta Cheese, Yogurt, Cottage Cheese, Olive Oil, Oatmeal, Brown Rice Products, Millet, Green Leafy Vegetables, Carrots, Beets, Sweet Potato, Grapes, Bananas, and Pineapple.

Blood Type AB

Type AB's are sometimes unable to metabolize red meat efficiently, so they should eat it sparingly. They do best on a mixed diet of foods from the A and B list.

Beneficial Foods: Lamb, Turkey, Tuna, Cod, Mackerel, Sardine, Eggs, Goat Milk, Goat Cheese, Yogurt, Olive Oil, Walnuts, Lentils, Navy Beans, Soy Beans, Oatmeal, Rice, Spelt, Green Leafy Vegetables, Beets, Grapes, and Pineapple.


Dr. Peter D'Adamo explains the different blood types and the foods for each type

Profile of Blood Type O

Blood type O may have been the first blood type and it is the most common. Type O's seem to thrive on intense physical exercise and animal proteins.

Blood type O's are known for their leadership abilities. They are usually extroverts with the ability to possess great energy and focus. When they stay balanced - they have the ability to live very long and healthy lives.

Type O's can efficiently digest and metabolize meat because they tend to have high stomach-acid. This trait can lead to ulcers as well as hyperactivity and anger issues if a type O becomes stressed.

Type O's are also more prone to having a sluggish thyroid, insulin resistance, and weight gain. This may be helped by eating an appropriate diet along with enough vigorous exercise.

This blood type doesn't seem to have the necessary enzymes to digest a lot of plant or dairy foods. However, they will need to make sure to get enough dark green vegetables into their diet in order to balance over-acidity issues - juicing vegetables can help with digestion problems.

Foods to Avoid: Pork, Goose, Octopus, Pickled Herring, Catfish, Yogurt, Milk, Brazil Nuts, Peanuts, Kidney Beans, Lentils, Wheat, Corn, Oats, Brassica Family of Vegetables, Eggplant, Potatoes, Avocado, and Strawberries.

Click for the full list of Beneficial, Neutral, and Foods to Avoid for blood type O

Profile of Blood Type A

Blood type A is known as the second oldest blood type and is almost as common as the type O's. Type A's seem to thrive on a more vegetarian type of diet and light exercise such as yoga.

Blood type A's are known as a more sensitive type of person with a more delicate digestive system. They are usually very creative and artistic.

Type A's usually have low stomach-acid which can make digesting meat very difficult. This can lead to feeling very sluggish and weight gain.

Dairy foods are also not very well tolerated by type A's - although a small amount of fermented dairy products can be consumed.

This blood type seems to thrive on vegetable proteins better than the other blood types. Legumes, nuts, and seeds can help to supply a type A's protein needs. Although certain seafoods can be very beneficial as well.

Type A's are more prone to cancer, heart disease, and diabetes - so it is very important for type A's to eat foods that are fresh and organic.

Foods to Avoid: Beef, Pork, Veal, Clams, Crab, Brazil Nuts, Cashews, Garbanzo Beans, Most Wheat Products, Potatoes, Tomatoes, Bananas, and Coconuts.

Click for the full list of Beneficial, Neutral, and Foods to Avoid for blood type A

Profile of Blood Type B

Blood type B's have not been around quite as long as the first two blood types and is much more rare. This blood type does best with a varied or balanced diet and exercise that involves a mental component such as tennis.

Blood type B's have the widest variety of foods to choose from - the best of both worlds. They are able to digest meats as well as a variety of plant foods - they are true omnivores.

Blood type B's can also enjoy a wide variety of dairy products - lucky me - if I could only find some raw dairy!!! However, type B's do not do well with most nuts and seeds.

Of all the blood types, type B's are able to resist many of the worst diseases such as cancer - although they are more prone to auto-immune disorders. They are at risk for chronic fatigue, overproduction of cortisol, and leaky gut syndrome.

In general, they have a strong immune system and can readily adapt to changes in their environment or diet. It is very important that they consume enough magnesium to help balance their system.

Foods to Avoid: Chicken, Pork, Goose, Shellfish, Blue Cheese, Cashews, Peanuts, Lentils, Garbanzo Beans, Wheat, Rye, Buckwheat, Corn, Tomatoes, Olives, Pomegranates, and Coconut.

Click for the full list of Beneficial, Neutral, and Foods to Avoid for blood type B

Profile of Blood Type AB

Blood type AB's are the newest and rarest of the all the blood types - with only about 2% of the population being an AB.

Type AB's are kind of a cross between type A and type B. Therefore, this can make them have the strengths as well as the weaknesses of both blood types.

Type AB's tend to have a more sensitive system like the A's and can sometimes have problems digesting red meat because of low stomach acid - they may have to eat meat sparingly.

Type AB's can tolerate dairy as well as grains fairly well. Like type A's, type AB can do well with the consumption of some plant proteins and they can also eat a varied or mixed diet like the B's.

This blood type has a more vulnerable immune system and are at risk for blood clots, cancer, allergies, and bi-polar disorders.

Foods to Avoid: Beef, Chicken, Pork, Shellfish, Blue Cheese, Whole Cow Milk, Kidney Beans, Lima Beans, Buckwheat, Corn, Avocado, Bell Peppers, Mangoes, and Bananas.

Click for the full list of Beneficial, Neutral, and Foods to Avoid for blood type AB

Recap on Problematic Lectins

The sticking together of red blood cells is referred to as agglutination.

During the digestion of your food, lectins will be released and upon entering your bloodstream - some of these lectins can bind to your red blood cells which can cause them to stick together or agglutinate.

Dr. D'Adamo claims that it is this process that can cause numerous health problems like poor digestion, stomach pains, diarrhea, liver problems, kidney problems, and weight problems to name just a few.

In normal healthy blood, your red blood cells should be freely movable and unattached. This way they can make their way through your blood vessels and carry oxygen to all the cells in your body.

Overview video of the Blood Type Diet on Digestion and Lectins

My Thoughts

One of the things that bothers me about the blood type diet is that coconuts are to be avoided by all blood types. I actually consider certain coconut products to be super foods.

Also, I truly believe that cooked foods should be in a category all its own and raw foods should be in another. For example, some people who cannot digest pasteurized milk, have no problem digesting raw milk.

I think the blood type diet is important in beginning to understand your digestion process or how your body reacts to certain foods, but it is probably only the tip of the iceberg.

There are other factors that may be just as important to how well you can digest your food.

According to Aajonus Vonderplanitz who is the founder of the Primal diet - 10 to 20% of digestion is enzymatic or related to digestion juices. The rest of digestion is 80 to 90% bacterial.

That basically means that raw foods will be digested better than cooked foods as they usually come with enzymes and bacteria. However, foods high in lectins like grains, legumes, nightshades, nuts, and seeds can cause great digestive problems when eaten raw.

Soaking, sprouting, fermenting, and even cooking will help to lessen the effect of certain lectins.Traditional cultures never ate grains, legumes, nuts or seeds without soaking or fermenting at least overnight - for example.

The bottom line is that there are other factors that come into play when it comes to the proper digestion of foods, but your blood type will probably determine to a certain degree how you will react to certain foods.

Will I give up eating guacamole just because avocado is on my avoid list - probably not. However, I may choose a chip that is more B friendly to go with my guacamole and avoid any salsa - lol.

I just have a stronger belief in the power of raw foods, but I also see the benefit of knowing which foods are more friendly towards my blood type.

Eat Well,

Kathryn

Back to Back Issues Page