To bring this discussion back to a normal discussion, Marc can you offer any evidence that a high calorie diet with mainly or mostly meat will still produce weight loss. Also can you provide any evidence for the sustainability of increased meat production. A youtube video from a business owner pushing his own products doesn't count.
I have already provided several times reference to, quotes from and links to the work of Gary Taubes. I have already explained the basic theory but I will be happy to do so again. I will then give you specific suggestions about what to read so that you can see for yourself what the scientific and historical evidence is in detail.
Not all calories that you consume have the same effect on your body holding on to fat. That is because not all types of food have the same effect on insulin. Insulin is what drives fat into your cells. That fact is well established. If you eat a diet high in food that spikes insulin you risk getting fat. There is some variance among people on this effect. Women put on fat more easily than Men for example. Teenagers still have nice new insulin receptors and can handle more insulin production than older people. But eventually with enough abuse they will ware down those receptors and begin to get over weight.
It is particularly alarming that our diets have gotten so high in sugar and junk foods that even the very young are getting obese. Type two diabetes is showing up more and more in the very young, Over 60% of adults in the USA and also in England are overweight or obese.
Carbohydrates, especially from sugar and highly processed foods dive insulin. Insulin drives fat. The number of calories you eat is secondary to where you get those calories. The establishment theory is "A Calorie is a Calorie is a Calorie" may be false. The standard government advocated food pyramid puts you on a high carb, low fat diet. The alternative theory says that this bad advice has only helped to fuel the obesity epidemic.
Gary Taubes has written extensively on this. If you would like to examine the Scientific basis for both of these theories more closely and then decide for yourself, you should read his book; "Good Calories, Bad Calories".. This book is meant to be read by researchers and people with an interest in Science. He looks at all the experimentation that led to the establishment conclusions. He also presents in detail the Science behind the alternative theory. He gives numerous historical examples that damage the creditability of the establishment theories and support the alternative theory. This book is extensive, 500 pages long and should more than answer any questions you may have.
If you prefer something shorter that is written more with the non-scientist layman in mind then you should read his other book. "Why we get Fat."
There are also numerous lectures that he has given on-line. You could start there and determine if his arguments and evidence make sense to you and then if they do go on to read his books.