Guar gum is a dietary fibre that has been reported to decrease plasma cholesterol concentration (76) and increased satiety (77). However a meta-analysis found that although this product is safe no benefit has been found compared to a placebo (78).
76 – Superko, H. R., Haskell, W. L., Sawrey-Kubicek, L., & Farquhar, J. W. (1988). Effects of solid and liquid guar gum on plasma cholesterol and triglyceride concentrations in moderate hypercholesterolemia. The American journal of cardiology, 62(1), 51-55.
77 – Bent, S., Tiedt, T. N., Odden, M. C., & Shlipak, M. G. (2003). The relative safety of ephedra compared with other herbal products. Annals of Internal Medicine, 138(6), 468-471.
78 – Pittler, M. H., & Ernst, E. (2001). Guar gum for body weight reduction: meta-analysis of randomized trials. The American journal of medicine, 110(9), 724-730.