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"I am not a speed reader. I am a speed understander."
- Isaac Asimov

Nutrient Extractor and Maximizer (NEM)  
  Device that replaces and extends the capabilities of the human digestive system.  

Tired? Feel like you'd like to get more energy out of the food you eat?

Set beside the grand majority of complex meld surgeries, his was comparatively simple. They removed half his stomach and the majority of his intestines. In their place were inserted a fuel cell-powered post-digestive NEM (nutrient extractor and maximizer) that drew energy from the fortified liquids he drank. It was complimented by a compact prefood processor.
From The Human Blend, by Alan Dean Foster.
Published by Del Rey in 2010
Additional resources -

Compare with the syrup sac from sf Grandmaster Jack Vance's award-winning 1967 novel The Last Castle, as well as this article DARPA Seeks Metabolic Dominance.

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Additional resources:
  More Ideas and Technology from The Human Blend
  More Ideas and Technology by Alan Dean Foster
  Tech news articles related to The Human Blend
  Tech news articles related to works by Alan Dean Foster

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