<<Disclaimer: Verify this information before applying it to your situation.>> More on cellulose: *************************** Did any one mention that methyl cellulose makes a good substitute for xantham and guar gum (both of which sometimes have gluten)? You can get m cellulose from your pharmacist- expensive unless you want to buy a lot of it. Maines North Creek NY. *************************** One source of cellulose is wheat stalk and wheat bran. A google search will turn up several references.