Meaningful preliminary evidence suggests that use of the following herbs and supplements could potentially improve blood sugar control and require you to reduce your insulin dosage: aloe, chromium, fenugreek, ginseng, gymnema, coenzyme Q10, and vanadium.

Weaker evidence suggests that the following herbs and supplements could potentially have the same effect under certain circumstances: Anemarrhena asphodeloides,arginine, Azadirachta indica ( neem), bilberry leaf, biotin, bitter melon, carnitine, Catharanthus roseus, Coccinia indica,coenzyme Q10, conjugated linoleic acid (CLA), Cucumis sativus, Cucurbita ficifolia, Cuminum cyminum (cumin), Euphorbia prostrata,garlic, glucomannan, Guaiacum coulteri, Guazuma ulmifolia,guggul, holy basil, Lepechinia caulescens,lipoic acid, Medicago sativa ( alfalfa), Musa sapientum L. (banana), niacinamide, nopal cactus, onion, Phaseolus vulgaris, Psacalium peltatum, pterocarpus, Rhizophora mangle,salt bush, Spinacea oleracea, Tournefortia hirsutissima, Turnera diffusa, and vitamin E.