merijn_v1
Black Belt
How? Malnourished person is lacking in health directly, and indirectly -- has a lower immune system and resistance to common diseases. Unhealthiness is more inclusive term than simply being sick, can you acknowledge that?
How can a person be malnourished, if there is a surplus of food available?
To answer your question why the granary provides health with wheat and wheat itself doesn't: Wheat by itself is useless. It has to be processed. The granary represent the processing of wheat into something people can use.