You're using low-carb and paleo interchangeably, though one is, I believe, the evolutionary perspective and the other is the modern perspective.

Low-carb is based on insulin control with the supporting argument "that's just how we evolved". The protective benefits of vegetables, fruits, berries, and even legumes are definitely not ignored. I know I eat boatloads more than I used to.

Paleo is based on anthropology/archaeology with the supporting argument "and that's why pasta shoots your insulin thru the roof".

The omega-3 (grass-fed) angle is perhaps low-carb-squared: insulin control for you and your livestock keeps your n3:n6 ratio correct. Or maybe paleo-squared: original diet for you and your livestock gives you paleo-health.