The bar chart on slide #22 shows dosage rates for TPN-based nutrition only. For a fully-active person, this is about 0.7 kg/day of the aqueous dextrose/amino acid/lipid solution. By comparison, the typical mass allocation with traditional solid/partially-hydrated food used by astronauts, based on spaceflight experience and the ISS, is over 2 kg/day.
For our baseline habitat, we used the “resting-level” TPN dosage rate (0.55 kg/day) to determine our food stores. This is a conservative approach since we did not take any further reductions for the Torpor-state. This handles our contingency case if the crew were to awake and remain in a conscious state.
So, we don’t think you are missing anything here, just using the wrong basis number for comparison!