The best replacement for inulin is psyllium.

The best alternatives to inulin are rated as following:
★★★★★  psyllium
★★★  fos
★★  wheat dextrin
★★  creatinine
★★  psyllium fiber
★  psyllium husk
★  pah
★  dextrin
  methylcellulose
  polydextrose
  acacia fiber
  erythritol
  glucomannan

Your alternative for inulin is not listed? Suggest!
Speaking about inulin, one probably shouldn't forget about probiotics.

Other search terms related to inulin and their ratings are:
★★★★★ probiotics
★★★★ stevia
★ fos
You have in mind a companion for inulin and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of inulin in all years. Click on graph for more.
inulin
psyllium
fos