Dr. Mark Hyman, author of 'UltraMetabolism,' talks with AOL's Book Maven Bethanne Patrick about the role genes play in your diet and weight-loss plan. Here are excerpts from the interview:

Bethanne Patrick: Oh, it's great to talk with you and this is so exciting. Your book is about nutrigenomics, can you explain to us what that is and then we'll talk a little bit more about your background.

Dr. Mark Hyman: This is a whole new wave of medicine that's emerging based on science and nobody's hearing about it. It's really how food talks to our genes and turns on messages of health or disease, weight loss or weight gain, and it's called nutrigenomics.

Bethanne Patrick: Wow that's something I don't think any of us ever really thought about. Is that why I love bacon so much?

Dr. Mark Hyman: Probably not. I don't know if it's sending the right messages.

Bethanne Patrick: So explain to us, when you say 'food talking to your genes,' what kinds of messages are you describing?

Dr. Mark Hyman: Most of us think of our DNA as sort of locked in our body, waiting to be passed onto our children, but in fact your DNA at every moment is interacting with your environment, interacting with every bite of food you take, interacting with your thoughts, your feelings, and various things, so when you take a bite of food, literally, the information -- beyond the calories in the food -- goes right into your cells, into your DNA, and switches on genes, or turns off genes based on what information is in that food.

Bethanne Patrick: So, DNA is interactive.

Dr. Mark Hyman: It's like the software for your body. If you are not giving it the right messages to start the gene activation that leads to your metabolism, it's going to lead to weight gain and disease. The whole book Ultra Metabolism is based on the notion of this revolution in medicine -- that if we live in a way that's in harmony with our genes, we can fit into our jeans.

Bethanne Patrick: You use the analogy that putting the wrong food into your body is like putting diesel fuel into a regular car.

Dr. Mark Hyman: Exactly. I mean, would you think of feeding your dog French fries, a Big Mac and a Coke? No. We know that there's something wrong with [feeding] that to a dog. Yet we feed that to our children. These foods are not what [we have] adapted to from an evolutionary point of view. So if we live in a way that's more akin to how our bodies were designed then everything takes care of itself.

Bethanne Patrick: Tell me about how you found out about nutrigenomics and ultra metabolism. Do you have a lot of experience in this field? Where does it come from?

Dr. Mark Hyman: Well, I always call myself the accidental weight loss doctor because I never started out seeking to help people lose weight. People came to me with health issues, and I saw people who tried everything. My job was to be a medical detective to figure out the underlying causes of their problems. When I took care of the underlying health problems based on this new science nutrigenomics, the pounds took care of themselves. People just lost weight, without even trying. For example, yesterday I saw a woman who came to see me in November because she was tired and fatigued, had digestive issues and had many, many, many other issues and she was overweight. Three months later she came back and she lost 37 pounds.

Bethanne Patrick: Wow.

Dr. Mark Hyman: I didn't even recognize her and I didn't tell her to lose weight. I never tell people to go on a diet or lose weight, I said 'here's how you eat in a way that works with your body, rather than against it' and when you do that the natural intelligence and wisdom of the body takes care of the rest.

Bethanne Patrick: [What are] these seven myths about obesity? What is the starvation myth?

Dr. Mark Hyman: The starvation myth is the idea that if we eat less and exercise more we will lose weight, and unfortunately, when we do that, when we starve ourselves or restrict our calories, we trigger a primitive survival response that drives us to compensate by overeating. We all have the experience, for example, of starving yourself all day, skipping breakfast, light lunch or maybe not at all, and then you get home and what happens? You clean out the refrigerator.

Bethanne Patrick: Exactly!

Dr. Mark Hyman: And then you feel sick. Of course, we've done that over and over again. Now the first time you might do it you might think, 'Oh well, I shouldn't do this again because it's going to make me feel sick.' But how many times have all of us done that? Why? That's how our bodies are programmed. So if you eat less than your basic needs, if you starve yourself, you'll always backfire, you'll gain the weight back, and you'll probably gain back even a little bit more. People gain an average of five pounds for every diet they go on.