Eat Right Your Type
Summary: Avoid foods which are
detrimental to one's blood type. Even before looking at a blood type food
chart, it is a good idea to go ahead and limit foods which are not good for most
people including the nightshade vegetables (potatoes, tomatoes, eggplant, and
peppers), wheat, and oranges (especially orange juice). Blood type Os, the
most common type, should not be vegetarians and should consume a moderate
quantity of red meat, poultry, and a good deal of fish on a regular basis.
Blood type As, the next most common type, should lean toward a vegetarian diet
and exclude red meat from the diet, but occasional poultry and fish is
fine. See Steve
Shapiro's ER4YT Food Lists for food chart.
Eat Right 4 Your Type is a book that was written by Peter
D'Adamo. It states that people ought to eat foods that "agree"
with their blood type, be it O, A, B, or AB. He bases this on testing the
lectins found in foods on the different types of blood. Lectins which are
harmful to the blood cause it to coagulate quickly and have other undesirable
traits. Foods which are beneficial cause it to become more
"slippery" and transport nutrients and oxygen more effectively.
Foods which are neither beneficial or harmful to the blood are neutral - they
are "just" food. Keep in mind that these suggestions are only
based on lectin testing and not other factors which could still cause
problems. See Problems with Soy as
I think that the lectin-based food suggestions are
important. However, he bases most of his recommendations on herbs and
other supplements based not on their lectin content but on his theories.
And he follows conventional medical "wisdom" for these, believing, for
example, that "autoimmune" disorders are common, instead of the
alternative view that so-called autoimmune disorders are almost always the
body's reaction to an undiagnosed pathogen or toxin. I have seen a large
number of people get better taking supplements which were supposedly harmful to
their blood types (again, based on his theories of blood type and supplements,
not on lectin testing.) So I discount these while endorsing his food
ER4YT appears particularly helpful for many disorders,
especially inflammatory conditions and chronic digestive and skin problems as
well as for low energy levels.
When I first starting studying alternative medicine and how
people fared under it, I just knew there was some important dietary factor that
I was not taking into consideration. I saw how The
Zone Diet could improve many conditions a great deal, but not everyone did
well on it. The missing factor was the lectins in foods, which is
thorougly explained in Eat Right. Eating right for most people
follows zone principles pretty well by discouraging consumption of most starchy
carbohydrates. If one completely avoids wheat, potatoes, and the grain
type of corn, for example, weight loss will quickly follow.
It is also valuable reading for those who think they are being
healthy by being vegetarian when they are blood type Os. This is a recipe
for chronic fatigue. The person may not realize it since it may take
months of eating too little protein for it to manifest itself, so they may not
suspect that their diet is the problem. After all, they felt great for the
first few weeks of following it. This is not to say that all blood
type Os should start consuming massive amounts of red meat. This can also
have detrimental effects. Small portions are all that is necessary.
Conversely, blood type As tend to not be able to digest a lot of meat,
especially red meat. They tend to get constipated and sluggish.
There are many beneficial fish and other protein sources for them to eat,
Blood type B's and AB's can choose from the widest variety of
foods. They do well on many dairy and wheat products, unlike types A and
O. They tend to be thinner because of this (if they get a decent amount of
The ER4YT food charts below detail foods which are beneficial,
neutral, or harmful to each blood type. One will be surprised at some of
the findings. I find that the bean, nut, meat, and nightshade vegetables
suggestions are some of the most important. Just for fun, I looked at one
of the charts below to see which foods were highly beneficial for all blood
types: Cod, mackerel, sardines, olive oil, essene and ezekial breads, beet leaves, broccoli, collard greens, kale, parsley, parsnips, plums, ginger, and rose hips.
New Chapter is a supplement line based on the ER4YT
principles. I once recommended them due to their excellent food-based
formulas, but after smelling isopropyl alcohol on a few of their tableted
products, quickly withdrew my recommendation. See Toxins
in Supplements for more information.
Shapiro's ER4YT Food Lists are some of the more recent and comprehensive and
include the ethnicity-based recommendations.
D'Adamo's Live Right 4 Your
Type site contains information on his second book. There is much
information plus a recipe swap area and message board, and the books can be
The Lectin Report provides information on food lectins from Krispin Sullivan, who makes no mention of Eat Right 4 Your Type, but bases it on his own research.