Reply #101: Unfortunately for your position, when space is limited, it's a zero sum situation.

[Hosnon]

And a zero sum situation is not a false dichotomy. If there is room for only 10 tons of food, using one for food designated for animals means less food designated for humans. In such a situation, providing for one is denying the other.

Now, the article I cited supports the idea that not all 10 tons are needed for humans; therefore, cargo capacity might no longer be zero sum.