Is this another attempt to push a fruits-and-vegetables diet based on old superstition and ignorant observation? 400 years ago, nobody knew what micronutrients were; they knew if you didn't eat your fruits and vegetables, you got pellagra and scurvy--and you got pellagra by eating too much corn, too, so you needed to eat something else.
Today, somehow, people who eat diets with a lot of meat and don't overeat have few health problems. It's pretty simple: eat beef, eat chicken, eat fish, be healthy. There are a few micronutrients that are hard to get unless you're eating organ meats, certain fruits, or high-calorie shit like Hi-C fruit drinks--notably Vitamin C--but meat has a surprising amount of stuff like potassium and magnesium, so much so that you have to get into esoteric vegetables nobody eats to substantially beat the micronutrient profile of meat per calorie. There are only a few things an all-meat diet would leave you short on, and they're generally the things vegetables are actually pretty high in.
Has anyone noticed that meat-diets never produce deficiency diseases, yet someone is waiting in the wings to tell you you're doing vegan and vegetarian diets wrong because a lot of people get sick really fast on those diets? That's only counting malnutrition; things get weird when researchers do studies on constipated people and find out that a high- and moderate-fiber diet makes it worse, while a low-fiber diet improves things dramatically, and a no-fiber diet completely eliminates the issue--exactly what fiber isn't supposed to do.
So yeah, vegetarian diets are healthy--if you eat the right things, eat enough of them, eat massive amounts of them, and maybe take some supplements. Mainly-meat diets are healthy, if you don't eat too god damn much--honestly, Taco Bell and Burger King try to sell you 75% of a day's food as a so-called meal, so you're eating for two or three people by the end of the day, hence fast food making everyone fat (how did you think it happened?). They want us to go from the "you get fat if you eat too much" diet to the "you get pellagra and rickets if you don't diversify your nutrition correctly" diets (nobody gets scurvy; Vitamin C deficiency isn't a real thing anymore unless you try really, really hard).