Bitter Melon (Momordica charantia)
Joseph, Baby, D Jini, and S. M. Sujatha. "Insight into the Hypoglycaemic Effect of Traditional Plants Used in the Treatment of Diabetes." Journal of Ethnopharmacology 125, no. 1 (2009): 1-14. https://doi.org/10.1016/j.jep.2009.04.050.
Cinnamon (Cinnamomum cassia)
Khan, Akhtar M., Mahpara Safdar, Muhammad Ali Muzaffar Khan, Khadija Khattak, and Richard A. Anderson. "Cinnamon Improves Glucose and Lipids of People With Type 2 Diabetes." Diabetes Care 26, no. 12 (2003): 3215-3218. https://doi.org/10.2337/diacare.26.12.3215.
Gymnema Sylvestre
Baskaran, Krishnasamy, Krishnasamy K. Shanmugasundaram, and Sundaram S. Radha Shanmugasundaram. "Antidiabetic Effect of a Leaf Extract from Gymnema sylvestre in Non-Insulin-Dependent Diabetes Mellitus Patients." Journal of Ethnopharmacology 30, no. 3 (1990): 295-305. https://www.sciencedirect.com/science/article/abs/pii/0378874190901086.
Alpha Lipoic Acid
Evans, James L., and Ira D. Goldfine. "α-Lipoic Acid: A Multifunctional Antioxidant That Improves Insulin Sensitivity in Patients with Type 2 Diabetes." Diabetes Technology & Therapeutics 2, no. 3 (2000): 401-413. https://doi.org/10.3109/03602539808996311.
Banaba Extract (Lagerstroemia speciosa)
Judy, William V., Barbara Stogsdill, Oliver Judy, Steven N. Schoenfelder, and Peter T. Kulapongs. "Antidiabetic Activity of a Standardized Extract (Glucosol) from Lagerstroemia speciosa Leaves in Type II Diabetics: A Dose-Dependent Study." Journal of Ethnopharmacology 87, no. 1 (2003): 115-117. https://www.sciencedirect.com/science/article/abs/pii/S0378874103001223.
Zinc
Ranasinghe, Priyanga, Prasad Jayawardena, Pujitha Galappatthy, Ranil P. Katulanda, and Godwin R. Constantine. "Zinc and Diabetes Mellitus: Understanding Molecular Mechanisms and Clinical Implications." Diabetic Medicine 32, no. 3 (2015): 307-315. https://doi.org/10.1111/dme.12610.
Magnesium
Hruby, Adela, Qi Sun, JoAnn E. Manson, Frank B. Hu, Kathryn M. Rexrode, Bernard A. Rosner, and Simin Liu. "Magnesium Intake and Risk of Coronary Heart Disease Among Men." Journal of the American College of Nutrition 36, no. 2 (2017): 123-130. https://doi.org/10.1080/07315724.2016.1140092.
Chromium
Anderson, Richard A., and N. A. Polansky. "Dietary Chromium Supplementation Improves Glucose Tolerance in People With Type 2 Diabetes." Diabetes 31, no. 2 (1982): 1109-1112. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4869864/.
Taurine
Militante, Juan D., and John J. Lombardini. "Treatment of Hypertension With Taurine and Its Effects on Cardiovascular Risk Factors." Amino Acids 23, no. 4 (2002): 367-373. https://pubmed.ncbi.nlm.nih.gov/12436205/.