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by mister_mister 1238 days ago
yup, Someone might even die because of refeeding syndrome.[0]

Continuing on your point the body is there not a closed system as defined as:

> In a closed system, no mass may be transferred in or out of the system boundaries. The system always contains the same amount of matter, but (sensible) heat and (boundary) work can be exchanged across the boundary of the system. Whether a system can exchange heat, work, or both is dependent on the property of its boundary. [1]

[0]https://en.wikipedia.org/wiki/Refeeding_syndrome [1]https://en.wikipedia.org/wiki/Closed_system