However, our hunter gatherer ancestors didn't just eat the muscles of the animals, like most of us do.
No, they ate the organs too. Brain, kidneys, heart, bone marrow, liver and even testicles.
Organs are actually the most nutritious parts of the animal and the most nutritious of them all is the liver.
The liver is a remarkable organ that has hundreds of functions. It also concentrates many key nutrients like iron, B12 and some others. Liver is so nutritious that some people have called it nature’s multivitamin.
A 100 gram (3.5 oz) portion of beef liver contains
6.3 times the RDA for Vitamin A.
2 times the RDA for Riboflavin (B2).
12 times the RDA for Vitamin B12.
7 times the RDA for copper.
It also contains massive amounts of other nutrients like Folate, B3, B5, B6 and others.
If you want to eat like a true hunter-gatherer, then you should eat some organ meats. Just one meal per week with liver will dramatically boost your average intake of many key nutrients.
The fact is us humans adapted to eating plenty of animals, and that includes organ meats like liver. Eating liver once per week will dramatically boost your intake of key nutrients."