The best replacement for digestion is absorption.

The best alternatives to digestion are rated as following:
★★★★★  absorption
★★★  chemical digestion
★★  metabolism
★★  ingestion
★★  mechanical digestion
★  baby moving
★  intracellular digestion
★  extracellular digestion
★  hunger
★  anaerobic digestion
  catabolism
  chemical
  emulsification
  fermentation
  aerobic
  intracellular
  physical digestion
  human digestion
  aerobic digestion

Your alternative for digestion is not listed? Suggest!
Speaking about digestion, one probably shouldn't forget about bile salts.

Other search terms related to digestion and their ratings are:
★★★★★ bile salts
★ xbai
You have in mind a companion for digestion and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of digestion in all years. Click on graph for more.
digestion
absorption
chemical digestion