Not by racial types--not even by blood types--but by BACTERIA types. Each human being has thousands of different species of microbes living on our bodies, but there are just THREE main types in our guts (NOTE: Subscribers can still listen to this show). And it's the bacteria in our guts that do the final job of digesting our food.
In the April 20th edition of the New York Times, Carl Zimmer quotes biologist Rob Knight as saying, "It's an important advance. It's the first indication that human gut ecosystems may fall into distinct types." Interestingly enough, the little aliens known as the "Grays" always appear to people in groups of three.
How did we end up with type of germs we have? The researchers found no link to sex, weight, health or age, and speculate that maybe are randomly colonized by microbes as infants. And it turns out that anxiety may be in your gut, not in your head--new research finds a link between your gut bacteria and your behavior. Several common types of gastrointestinal disease, including irritable bowel syndrome, are frequently associated with anxiety or depression. In addition there has been speculation that some psychiatric disorders, such as late onset autism, may be associated with an abnormal bacterial content in the gut.
No matter what microbes you have in YOUR gut, you can still manage to eat too much. If YOU'RE overweight, you need Anne Strieber's famous diet book, "What I Learned from the Fat Years." In it, she tells how she lost 100 pounds over 3 (yes, three) years time and shows how YOU can do it too, and at less than $5 for a download, it costs MUCH LESS than a diet book in a bookstore.