Some of the lab-coat bozos who dream up fake "studies" to convince you to eat or not to eat and to spend a lot of your money on buying books related to fake health and nutrition scams would like you to believe that wheat is your enemy. Unless you have celiac disease, it isn't, but if you're like most Americans, you don't know science from Shinola, don't know a study from a Studebaker or glutin from glockenspiels and the same goes for history and biology, but that's not what this is about.
A popular fiction is that "studies show" that the advent of agricultural civilization (is there any other kind?) made people smaller and so you should avoid agricultural products. Of course it's hokum designed to sell product and is popular with inflated airheads from Hollywood, but it's not a study, a scientific, randomized large double blind study, it's motivated speculation -- like all those e-mails I get telling me that some new scandal is going to get Obama impeached any day now.
Agriculture allowed cities to form. Cities allowed greater communication and closer association between more and more people and that fostered diseases and epidemics previously unknown or previously restricted in range. Such things had a strong effect on health and disease can easily explain what the diet "doctors" would like to blame, for their own gain, on grain. Even in modern times, AIDS, which may have been around for a very long time, was spread around the world by airplanes. Communication has a dark side, just look at what the spread of Europeans and their diseases did to the Americas. Still we live longer than ever, ae more disease free, are larger than ever and remain active longer, Pizza and TV dinners notwithstanding
Of course if you like to give names to the "ages" of Man, you'd have to consider the title The Information Age. Could it be however that pernicious, malicious, malignant and dangerous ideas, memes, lies, stereotypes, maledictions and political doctrines are the deadly side effect of the electronic media, just as cities, ships and Camel trains spread death along with culture and commerce?
Obama is going to declare martial law, going to take your guns, send you to death camps, murder your grandmother. Apollo 11 never went to the moon, that German plane, that Malaysian plane never crashed, that bomb never went off. Obama is a Muslim, Clinton tried to have the UN invade the US. Cell phones will kill you, wheat will damage your brain, cooking your food is bad, The Koch Brothers and Woody Harrelson know what's best for us and Subarus are made with love. Sure, it's the information age, but who can deny, looking at the vast majority of that information, that it's the bullshit age. Mythology has gone metastatic. It's mass produced for entertainment and profit, for greed and power and even though much of it is benign, much of it is deadly. It's not only deadly to your health, but to your cognitive, your critical faculties and whether or not it all ends with bangs or whimpers, the cenotaph, the tombstone of our species will be inscribed with these words STUDIES SHOW.