So what do you think of the health of cave men?

Not saying they were totally healthy because they died of war or famine (times were rough) but diet wise yes they were far more healthier. They had less cavities too, with the rise of agriculture literally changed our bacteria in our mouths and introduced new pathogens. This is due to industrial revolution and agriculture:

[b]https://evolution.berkeley.edu/evolibrary/news/130301_plaque[/b]

As for my personal opinion when I step out the door I can't see someone who isn't overweight. Even kids are beginning to look like obese adults. Malnutrition is a big problem in first world countries, I wish I could remember the link but there was something I saw where a country was concerned because the vitamins in veggies are not as superior as they once were, their going downhill due to soil and other things.

Aside from that, you don't have to be bone thin or have a bloated tummy to be malnourished. When you constantly eat empty calories, there's a reason disease shows up in the future in the SPECIFIC case of food is concerned. And in a first world country that seems to take advantage of the fact they have everything is kind of sad.

I also can't imagine we're "better" simply because of technology. In an emergency scenario I'd put my money on hunter gatherers over people who can't even look both ways in traffic because their staring at their phones.

It's true their diet is wherever they were but they also clean ate and moved naturally like humans were supposed to. They didn't have to deal with pesticides or factory farmed meat. They didn't have to worry about nutritional quality (even though quantity may have been an issue.)