This is a very small study with n = 24 with significant conflicts of interest.

> Funding. The project was financially supported by a grant from the National Cattleman’s Beef Association.

It’s a start and shows there’s more m work that needs to be done in this area. According to the study they don’t know why this difference exists and they seem to have disproved its due to Leucine which was a popular hypothesis. If the difference is real, identifying the cause will be most important as it will allow for the formulation of better sources of protein than what we have right now.