If you are interested in the link between human evolution and food, I highly recommend the documentary 'Cooked', by Michael Pollan: <a href="http://www.imdb.com/title/tt5347906/" rel="nofollow">http://www.imdb.com/title/tt5347906/</a>
<i>A History of the World in Six Glasses</i> <a href="https://smile.amazon.com/History-World-6-Glasses-ebook/dp/B002STNBRK/ref=carldonath" rel="nofollow">https://smile.amazon.com/History-World-6-Glasses-ebook/dp/B0...</a>
It's not like people suffering from celiac's disease and eating gluten fail to thrive in our society. They still reproduce and raise families, most people do. How is evolution going to improve that situation?