What was also very interesting about the study was that increased mitochondrial efficiency of the cell (needing less oxygen), apparently is owed to the lower levels of proteins... proteins that normally make the mitochondria «leaky» and inefficient. (lifefitness-academy.com)
Those benefits come with both types of metabolism: from ready insulin response, healthy mucosa, thyroid and other effects (enhanced by moderate starch, a mostly glucose - based metabolism), to hunger - resistane, greater mitochondrial efficiency and perhaps SRT1 / apoptosis and other effects (enhanced by fasting / ketosis). (freetheanimal.com)
Estrogen also preserves mitochondrial efficiency and reduces oxidative stress. (holtorfmed.com)