Hello Jen:
I’m not on the D’Adamo diet, but I have read his book. I found it problematic, but thought the information regarding the lectins was interesting. So I did a small search and found this link http://www.westonaprice.org/bookreviews/eat_right.html
They gave an interesting explanation regarding the lectins and but also gave the book a thumbs down. D’Adamo makes huge assumptions regarding which blood types existed first. There is too much speculation on that, so if he is wrong which came first, then likely his diet is also wrong. Another problem I felt about D’Adamo’s diet is when you take a look at other animals. Horses have 34 different blood type. Dogs have about 11, pigs have about 16, cattle have about 11, and the list goes on. If humans have to have different diets based upon our 4 blood types, then should animals be the same way? I.e. 34 different diets for horses, 11 for dogs, 16 for pigs, and so on? As far as I know, all horses eat grass regardless of their blood type, all cattle are vegetarians, all dogs are carnivores, etc. I believe what keeps humans and animals healthy is that they eat what is appropriate for the specific species. In our case, whole foods free of chemicals and additives. Might I suggest you visit the Weston Price Organization dealing with eating traditional foods. You can visit their link at http://www.westonaprice.org I feel that many of their diet recommendations are spot on for improved health. Much of my diet is based upon many of their concepts regarding foods.
Take care,
Marla