When it comes to evaluating diets a lot of factors can go into making an informed decision – is the science sound, does it conform to known principles of nutrition, has it been sufficiently tested. All of these are great indicators however they can pale in comparison to real life usage of a diet. For instance having sound science could deliver a diet that will shed fat, but yet be so complicated that only someone with a PhD would ever follow it.
Likewise having a diet that conforms to know nutritional principles may create a fat burning program that works but yet tastes so horrid that no one uses it. And while scientific testing is good and necessary it does little to prove that people who are outside the control of scientists in lab coats will ever use it in a world where the temptations of quickie marts and fast food are just around the corner.
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