It is a fad. I am glad your dad is a doctor (mine is a CPA btw) and it sounds like the version of the diet that you are on is pretty healthy. Others are not so smart.
Tell me, what was the average life expectancy for a Paleolithic male? I don't know either, but I am guessing it is probably less than it is currently.
Fruits and nuts are a pretty strong piece of a healthy diet.
Clearly I am not a nutritionist and you aren't a doctor, but here we are doling out health advice on a site for aviators.
All I can say is to consult your flight doc (or A flight doc if you don't want to talk to yours) before embarking on any diet outside the norm.
Again, paleo is simply "not eating junk food", those foods with little nutritional value. Eating too many nuts, dairy and fruits is just a way people f*** up the diet and contain a lot of salt, and sugar. Virtually everything, nutrition wise, in fruits, dairy, and nuts can be eaten through meats fish and veggies. But thats not me saying eat zero fruit or nuts, its just saying that eating a shit ton of dried fruit with nuts completely defeats the purpose of it all. And I'm glad your dad is a CPA, but, as previously stated, mine is a doctor, and he, as well as MY flight surgeon (total of 3 flight surgeons in fact) have all offered this advice.
And yes, we're doling out advice because someone asked it on the forum. If they didn't want the advice, they wouldn't ask.
