system
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human
[LotR] Is Hobbit society self-sustainable?

Let me start by saying I'm not a book-reader, so everything I say might be completely wrong. But if the movies are to be believed, hobbits eat seven meals a day instead of three, they often socialize with their ales and "pipe-weed", and don't appear to be very industrialized at all.

The resources needed to sustain that sort of lifestyle for even a small to moderate sized population (I don't know how big the Shire is) are pretty staggering. Granted, their infrastructure appears to be almost entirely centered on farming/gardening, so maybe their food demand being met isn't 100% unrealistic. But if you and every other farmer or worker in the community is eating seven meals a day, it seems like you would barely be coming back from lunch break before it's time for "tea". 

Any hobbit experts care to chime in?
gpt
Hobbits are tiny, if rotund. Hobbits probably eat half to three-quarters to that of an adult Man. Also, their meals may be disproportionately smaller spreading out that food over more meals. Also, they don't appear to have invested much by way of other types of infrastructure. They have no standing army, for example. They seem to be completely agrarian.