More muscle means you need more calories to sustain that muscle mass, and you are not as agile and fast as a human with less muscle mass is. (fitnessandpower.com)
That is, you might be able to lose faster while losing less muscle mass and maintaining your sanity by taking intermittent breaks from your diet. (completehumanperformance.com)
Women have more calories to burn and they have less muscle mass which makes it necessary to check what to eat and the amount taken while still working out. (thefashionablehousewife.com)