No, but 1) 1800 calories of animal products have more land use and embodied labor and energy than 7500 calories of plants, so veganism is a much better approach than "don't be an athlete because it's wasteful" nonsense, and 2) we're nowhere near the point where penny-pinching each other's calories or trying to justify them to the public is worth doing. The carrying capacity is way above the global population, even if we were to set aside half of all land as nature preserves.
No, but 1) 1800 calories of animal products have more land use and embodied labor and energy than 7500 calories of plants, so veganism is a much better approach than "don't be an athlete because it's wasteful" nonsense, and 2) we're nowhere near the point where penny-pinching each other's calories or trying to justify them to the public is worth doing. The carrying capacity is way above the global population, even if we were to set aside half of all land as nature preserves.