Does metabolism have any correlation with muscle mass?

Does someone with a lower muscle mass have a slower metabolism than someone with a higher muscle mass? Is there any relation between metabolism and muscle mass at all? I have a fast metabolism and my girlfriend claims it's because I have a lot of muscle. Is this true?

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  1. Yup.

    Muscles are what's known as 'active tissue', meaning they require upkeep. Your body uses energy (calories) in order to maintain them. Fat requires no maintenance. I have read that for every pound of muscle gained, a person will burn 50 more calories a day without even trying.

    In other words, muscles have everything to do with metabolism.

  2. chris is confused as shit says:

    yeah, the more muscle mass you have, the more calories you will burn when doing any kind of intense training, or even just sitting on a*s.

  3. ♥The Mrs.♥ says:

    Muscle creates more heat than fat, to create more heat you must burn more calories…so in a sense, yes.

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