Bryan Johnson eats 2,000 calories daily, where each calorie must justify itself through scientific evidence. He tracks hundreds of biomarkers monthly across blood, urine, and stool to measure his internal aging and validate whether his diet actually works.
So my diet consists of 2000 calories. Every calorie has to fight for its life for inclusion. Every ingredient here has been looked at extensively. It's matched up with scientific evidence, and then it's included. And then we test my body. So we do this protocol. We look at all the data and we say, does the data support the scientific evidence we're trying to match? A lot of people think their eyes are the best scientific instrument to measure one's age. They'll look at somebody and say, well, I think blank. The more sophisticated way of doing it, now that we have all this great science, is looking at hundreds of biomarkers that we're generating on a monthly basis. So we look at all the biofluids, blood fly, the stool. We look at DNA methylation, fitness tests, ultrasound, mri, hundreds of markers. And we use that data to assess what's really happening inside the body.
