It's not just ruminant, but ruminant meat eating appropriate food. Grass fed beef versus grain fed is fascinating. Furthermore, how we raise ruminants is important for the ecosystem. When I tried carnivore diet, I can attest that the benefits are real but so is the hungering addiction from processed foods. I'm currently detaching myself from sugar which is... hard.
I can't wait for properly controlled studies on this subject. There is great anecdotal evidence https://benjamindavidsteele.wordpress.com/2020/01/10/multipl... which warrants proper studies.