[Retric]

> We don’t just eat random (average) parts of plants, we eat selected ones

We can’t digest cellulose which throws off the calculations based on what calories are available to us. The question was the minimums not the worst case. Obviously most carbon sequestered by trees isn’t available to us a calories.

In a closed environment simply eating plants wouldn’t result in the correct carbon balance long term. We would need to breakdown our waste via microbes, fungi, or burning.