one thing it can be used for is ultra precise body fat estimation and localization. depending on your genetics you might be skinny fat but have alot of internal visceral fat that is very damaging to your health.
the state of the art is dexa scans but they can be off by 5+% and more error on the distribution of the fat
the state of the art is dexa scans but they can be off by 5+% and more error on the distribution of the fat