Interesting idea to prove calories in / calories out mindset. Of course if you exercise and maintain a proper caloric intake you should see a good result. However, the human body is not a simple machine and is very complex. For instance many variables come into play such genetics, metabolism, how you will react to nutrients, same drugs have different effects on people, allergies, etc. The video hints at this idea of how everyone has different needs. But what about how your body also handles not just nutrients but toxins.
1. For example, consider the following idea as food for thought:
-Person A can smoke there whole life with little ill effect. (think George Burns).
-Person B can smoke and after a few years develop lung cancer. (I have a co-worker who went through this).
-Person C can only catch wafts of second hand smoke and get lung cancer.
My point being it is like an airplane flying into the wind. Going forward is health and backwards is disease. Depending how good your airplane is you may make some headway despite the headwind. Now if you have some bad immune system, coupled with a genetic predisposition, maybe your plane may not be so good and you actually go backwards.
2. Adding to idea number one, I'd be curious to see some sort of test of what toxins in food can do. After growing up on a farm I can say the way most of the commercial beef, chicken, vegetables are raised is terrible. Watch this video for a sample of that idea. It is far from how my father would raise cows. And remember the old saying you are what you eat.
I do not point this out to be some sort of alarmist. I just want folks to be educated on where those pretty little big mac's and nice looking cuts in the store come from. Nothing wrong with beef if it is raised correctly. But I don't want to eat ammonia, rBGH (cow growth hormone), finaplix, and God knows what else they do to the animals in large operations.
