High-quality grass-fed beef bones!
Bones are for much more than just stock. In fact, what lies within bones may be one of the key factors that helped shape us into the humans we are today. Bone Marrow is one of the most nutrient-dense foods in the world, and one of the many superfoods that fuel our big brains.
Although grass-fed beef, in my mind, is much superior to beef that is fed grains, corn or soy, I do not always advocate for it and understand it can sometimes be harder to obtain and cost more. However, when it comes to beef bones, I highly encourage only grass-fed. Bone marrow is where many essential nutrients such as Vitamin A, Vitamin E, Vitamin B12, Thiamine, Riboflavin, and Iron are stored. The nutritional and flavour differences between grass and grain-fed are immense and even grass-fed bones are one of the most budget-friendly foods available.
Don’t be fooled by fake superfoods like kale and goji berries, be a superhuman and eat real superfoods like bone marrow! Feed your brain the fatty foods it craves
Evidence for a Meat-Based Diet | Kevin Stock