https://www.diagnosisdiet.com/full-article/meat
Meat: The Original Superfood
Meat has a bad reputation. Most people think of meat, especially red meat, as dangerously unhealthy. However ....
Meat is the only nutritionally complete food
Animal foods (particularly when organ meats are included) contain all of the protein, fat, vitamins and minerals that humans need to function. They contain absolutely everything we need in just the right proportions. That makes sense, because for most of human history, these would have been the only foods available just about everywhere on the planet in all seasons.