Ignoring initial construction costs, what takes less of a toll on the environment: a human-powered bike or an electric bike?

What’s up tildorans, This is more of a thought experiment then anything else, is the impact of consuming calories more or less impactful then producing the electricity needed to power the bike? And I also understand this is extremely affected by circumstance. Let’s say you eat beef 3 times a day and live in a part of the world where power is mostly generated via nuclear or hydroelectric. At that point, would the impact via electricity be less then the one via calories? What if you flip the spectrum and you’re a vegan living somewhere that produces all its energy via coal and oil, how does that affect the equation? Thanks