One thing that sets the Primal way of eating apart from other ancestral health approaches is our acceptance of dairy fat. Obviously, those people who can’t tolerate dairy shouldn’t eat it, but in my experience a significant portion of the community can handle high-quality, full-fat dairy, especially butter, yogurt, and cheese. We like these foods for many reasons. They’re delicious. They make vegetables more appealing and nutritious. They’re inherently nutritious themselves, containing fat-soluble vitamins and important minerals, while the potentially problematic components of dairy – the whey, casein, and lactose – are either absent or mitigated by fermentation. Fermented dairy is a good source of probiotics, too. All in all, dairy is worth including if you can do it.