Ultra-endurance athletes can burn up to 8,000 calories per day

The metabolic ceiling represents the maximum number of calories that a body can actually burn. For humans, it is believed to ...
Scientific American

Is There a Fundamental Limit to Human Metabolism? New Research Suggests Yes

The research, published today in Current Biology, showed that ultramarathoners can burn an astounding 11,000 calories per day ...

Study of Ultramarathon Runners Suggests There's a Fundamental Limit to Human Metabolism

Scientists have long hypothesized about a theoretical limit to human energy use. The research, published today in Current ...