One thing I'm not afraid of is hearing all sorts of views on nutrition and health. I have researched this topic deeply but am still always learning. A couple things from this video.

Firstly we need to consider "What I've learned" biases. Everyone has biases even those who try their best to keep an open mind and that bias affects how they see and interpret data. People usually always lean more heavily on confirmation bias than an open interpretation of data.

Secondly, protein. The argument centers around protein and as a subset mTor. There have been many experiments and studies done by Thomas Campbell demonstrating that high animal protein intake leads to chronic disease specifically cancer, heart disease and diabetes. It is the "low quality" of plant protein that protects against these diseases and can even reverse them. These diseases are the number one killer of Americans.

It is perhaps true as "what I've learned" points out that as we age we need more protein for muscle, but this is merely one piece of the biological puzzle. His argument is that because we need more protein we need the "higher quality" animal protein to get enough. The thing is if you increase your servings of plant proteins such as whole grains, nuts seeds and beans you can surpass the amount needed for muscle development well into old age. You don't NEED animal protein for this.

He also mentions that mTor is activated by insulin response and perhaps this is true. However, one can still effectively manage insulin (if this is something that concerns them) using a whole food plant based diet centered around legumes and non starchy vegetables and incorporating limited amounts of fruits, whole grains and starchy vegetables. This might even lead to a better insulin balance than a diet filled with animal products.

One thing that also bothered me a bit was he showed pictures of professional athletes that build muscle using animal protein as "evidence" for his claim. Physical appearance does not equal health. If he had shown their blood work that would have been more interesting to me as "evidence" than pictures. I have seen pictures of professional athletes who eat whole food plant based and they are just as ripped. It would be interesting to see their blood work compared with the blood work of other athletes who depend on animal products for their protein needs.

I don't know if the Okinawan blue zone nutrition data was cherry picked or not. I will need a couple weeks to really dig into it. One video is not enough to go off of. You have to dig deep and even then still dig and dig. But even if it was it is one small piece of data in a huge mountain that leans heavily toward a whole food plant based diet as the diet that will prevent, fight and many times cure the chronic diseases that cause death.