Bryan Johnson's body composition has changed by +4% muscle volume, -23% muscle fat infiltration, -20% visceral fat, and -59% liver fat over nine months.

“Liver Fat: with 2.4% of liver fat, I am doing better than 74% of men my age.”

“+ 3T MRI scan showed I have perfect liver fat, iron & stiffness. My liver fat is 1.36%, top 10% of ppl. < 5% is the normal range for non-fatty liver.”

“so my liver is in great health”

“it was a 40 improvement over two years ago”

“I have ideal liver fat 1.36 percent which is in the top 10 percent”

“so looking at my liver marketers including alt AST and ggt it's a combined number of 49.”