It is the favourite diet for most bodybuilders and physique athletes who wish to reach to lowest fat percentages and even keeping the good muscle retention. (supplementstown.com)
As your body is already in a caloric deficit to lose weight, going too low on protein can have a negative effect on muscle retention. (physiqueauthority.com)
Thankfully, energy has been high during my weekend workout which is the one that matters most for muscle retention so I can't complain too much. (ballingerathleticperformance.com)