The best replacement for chitosan is xenical.

The best alternatives to chitosan are rated as following:
★★★★★  xenical
★★★★★  orlistat
★★★★  chitin
★★★  cla
★★  glucomannan
★★  isinglass
★  kaolin
  glucosamine

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

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



Google Trends

Scale is based on the average worldwide traffic of chitosan in all years. Click on graph for more.
chitosan
xenical
orlistat