I disagree with that Masai study. I think it's clear that exercise is hardly effective at protecting from disease. If they truly ate a diet that promoted artery damage like a SAD nothing could protect nearly the entire population. Researches 'speculate' that exercise protected them from heart disease. I speculate they don't know what they are looking for and are confused.
I would have to say cooked low carb diets are healthier than cooked or even raw diets with excessive carbohydrates
http://www.apinchofhealth.com/resources/lowcarb/low-carb-research.htmlThere are many studies correlating health improvements from low carb diets which are based around cooked grain fed meat. Nearly all studies showing (cooked) meat to cause bad health have not controlled for carbohydrates at all.
Diet's high in plant food tend to be healthier through better cooking methods and less processed food eg. Japanese food - raw fish, steamed rice, vegetables, beef, pork vs SAD of coke, pizza, fried meat, white flour, cookies, chocolates etc. Even if the ratio of plants:meat and macro nutrients were the same a SAD would still be far more detrimental to one's health.