Microwaves and infrared radiation from a fire, oven, or stove are adjacent wavelengths in the electromagnetic spectrum, and infrared is adjacent to red light. Both infrared and visible light are more energetic than microwave. Microwave ovens work because the wavelength happens to allow the microwaves to penetrate the food a short distance, and then be absorbed. When they are absorbed, they cause the molecules in the food to oscillate, or vibrate if you prefer. This vibration of molecules is heat- not
becomes heat,
is heat. When the microwave generating part of the oven shuts off, nothing is left in the food but heat.
Infrared heats things exactly the same way- except it doesn't penetrate! There is
absolutely no difference other than this.
Obviously, exposing any portion of your body to such radiation will damage it- just as you will be damaged if you put your hand into an oven with the broiler on, or above the flame on a gas stove. However, unlike infrared from the broiler or stove, the microwave energy penetrates your body a short distance before it burns you. Obviously, since your skin protects the interior of your body, it is much less damaging to be burned on the surface than underneath- and in addition, you have many more pain and heat sensors on the surface of your skin than inside your body, so you can be much more seriously injured before your reflexes protect you. And finally, the microwave cavity resonator (which produces the microwaves) and klystron (which amplifies them) produce a beam of microwaves which is at least partly coherent- which means that it can travel long distances (feet) and burn you and your kitchen.
So for these reasons, the oven is shielded to prevent the microwaves from coming out; in addition, it reflects the bulk of them back into the food, so little or none of the energy is wasted.
Let me repeat:
microwaves heat food exactly the same way infrared radiation from an oven broiler does, except it penetrates a short way (a few millimeters) into the food first. There is ABSOLUTELY NO OTHER DIFFERENCE. If you could make a beam of infrared radiation as concentrated as the microwaves in a microwave oven are, it would be far more dangerous, a "heat-ray" capable of frying a four-inch hole in someone in seconds at a distance of many yards! They do not make food radioactive, and they do not do anything to the food that other heating methods will not. Claims to the contrary are BS of the highest order, and IMO self-serving scare-mongering intended by Trudeau to sell more books.
All of that said, I would recommend against standing in front of the oven and watching the food- I have a suspicion that it could eventually cause cataracts if you did it every night for many years, although I would not be surprised to have someone who has been involved in testing them to debunk me on that, too! This suspicion on my part is tied in with my suspicion that exposure to low levels of penetrating electromagnetic radiation over a long period of time can lead to chronic health problems, based on a lot of anecdotal evidence, but I have no idea as to the underlying mechanism. And like the above, I wouldn't be surprised to turn out to be wrong! So take this with a grain of salt.
Whee, let's sell more gadgets for $50 apiece- here we have the BS and the motive for the BS in one tidy package. Anyone with remaining questions hasn't been paying attention and gets a
How, precisely? And how is this alteration different from the alteration in your blood chemistry from eating food that has been cooked in
any manner whatsoever? References? Citations? Peer-reviewed journal articles?
I could post the

but I think the point has been made. This is an extraordinary claim, unsupported by the evidence presented and in any case requiring extraordinary evidence. Trudeau is a charlatan, a liar, and an ex-convict whose prison stay was for taking advantage of the gullible and unknowledgable in
precisely the same manner as he is in this book. I have no intention of wasting another single second of my life on him; 'nuff said.
Iamme, don't bother responding; I have no intention of continuing this conversation. As a public service, I have made my knowledge of the underlying scientific principles of operation of microwave ovens available. If you choose to believe the BS this individual is promulgating, and act on it, I prefer to think that you do so with at least the suspicion that almost nothing you read in this book is true. I caution you that based on this individual's past track record, and on the excerpts you have given here, you do anything suggested by this individual at considerable risk to your health and well-being. Best wishes.