Peter Attia· MD
in an animal they always want to have some extra fat on board because they're living in the wild and they don't know if they're going to be uh food there's going to be a food shortage suddenly or not so they want to try to maintain a little bit extra fat and so if you take animals and you put them on 70% of their normal caloric intake their fat stores are very minimal they have less oxidative stress to their mitochondria and they're going to live longer