<<Disclaimer: Verify this information before applying it to your situation.>> No one has suggested any UK sources for guar or xanthan gum so far, and telephone call searches have also failed. Some people have suggested Canadian and US sources, and I intend to use them for now. The gums are made in the UK and used in manufacturing, but are not retailed as far as I can determin. (I can get them in 25kg lots). Suggestions so far are: Kinnikinnick Foods Inc. 9706 80 Ave. Edmonton Alberta T6E 1K6 (403) 433 4023 Fax(403)432 7634 e mail [log in to unmask] Ener-G Foods has several gum sources. Their address is : 5960 1st Ave. S.., P.O. Box 84487, Seattle, Washington 98124-5787 Phone #: 206-767-6660 toll free number (not international) : 1-800-331-5222 FAX# 206-764-3398 -- Stuart MacGregor