Where does the energy that life uses to combat entropy ultimately come from?

It come from our energy system well I think

Approximately 95% of the U.S. population does not get complete nutrition. And it is estimated that approximately 97% of the U.S. population does not live a "healthy lifestyle", meaning in addition to proper eating, they also do not exercise regularly. Complete nutrition includes a variety of nutrients and vitamins that the body needs to be its healthiest.