The women that supplemented with protein three times daily lost 3.9 % more weight and had a relative gain of 5.8 % muscle volume in their thigh muscles compared to those that didn't. (cathe.com)
There was an average loss of 7 % leg muscle volume. (ahealthblog.com)
One study had participants go through an MRI scan that would measure their right thigh muscle volume after consuming a beverage rich in protein. (fitnessandpower.com)