The best replacement for glucomannan is psyllium.

The best alternatives to glucomannan are rated as following:
★★★★★  psyllium
★★★  pgx
★★  psyllium husk
★★  konjac root
★★  guar gum
★★  lipozene
★★  xanthan gum
★  skinny fiber
★  inulin
★  propolmannan
★  chitosan
  saffron extract
  konjac
  konjac fiber
  konjac root fiber
  pgx fiber

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

Other search terms related to glucomannan and their ratings are:
★★★★★ chitosan
★★ hoodia
You have in mind a companion for glucomannan and it is not yet here? Propose!



Google Trends

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