Key Constituents

Gymnemic acids (triterpene saponins)^{[6, 7]}

Main bioactives; suppress sweet taste and are linked to reduced intestinal glucose absorption and improved glycaemic control.

Gurmarin^[7]

A peptide that transiently blunts sweet-taste perception.

Pharmacological Actions

Antidiabetic (blood-sugar lowering)^{[1, 2, 3, 4, 5, 6, 7, 8]}

Leaf extracts lower fasting and post-prandial blood glucose and glycated haemoglobin in type 2 diabetics, partly via reduced intestinal glucose absorption (alpha-glucosidase/amylase inhibition) and support of insulin secretion.

Parts: Leaf

Lipid-lowering^{[3, 8]}

Supplementation has been associated with a favourable shift in the lipid profile alongside glucose lowering.

Parts: Leaf

Traditional & Indicated Uses

Blood sugar / diabetes support^{[2, 3, 4, 5, 6, 7, 8]}Strong · 10/10

Evidence: 10

Label: Blood sugar / diabetes support

more plants for blood sugar / diabetes support →detailed sources →

Metabolic support^{[4, 6, 8]}Good · 7/10

inferred from antidiabetic action

Evidence: 7

Label: Metabolic support

more plants for metabolic support →detailed sources →

High cholesterol^{[3, 8]}Good · 8/10

inferred from lipid-lowering action

Evidence: 8

Label: High cholesterol

more plants for high cholesterol →detailed sources →

Safety, Cautions & Contraindications

Safety note^{[6, 8, 9]}Caution

Gymnema lowers blood sugar and can add to the effect of diabetes medicines or insulin, risking hypoglycaemia; people on such treatment should monitor blood glucose closely and may need a dose adjustment supervised by their clinician. Rare drug-induced liver injury has been reported. Avoid in pregnancy and breastfeeding (insufficient safety data).

Synonyms

Asclepias geminata, Periploca sylvestris

Drug Class Interactions

Safety note^{[6, 8]}Caution

Drug Class: antidiabetics

Mechanism: Gymnema lowers blood glucose and can add to the effect of diabetes medicines (metformin, sulfonylureas, insulin and others), so combined use may cause blood sugar to fall too low; monitor closely and adjust medication doses under medical supervision.

Reviewed By: Omnia Sana (owner-authorized)

Reviewed Date: 2026-07-03

Pairings

Gymnema and fenugreek both lower blood sugar; taking them together may add up and push blood glucose too low, especially alongside diabetes medication, so monitor and use caution.^[7]

Partner Id: trigonella-foenum-graecum

Type: caution

Reviewed By: Omnia Sana (owner-authorized)

Reviewed Date: 2026-07-03

Gymnema and bitter melon both lower blood sugar; combined use may add up and risk hypoglycaemia, particularly with diabetes drugs, so monitor blood glucose.^[7]

Partner Id: momordica-charantia

Type: caution

Reviewed By: Omnia Sana (owner-authorized)

Reviewed Date: 2026-07-03

Gymnema and cassia cinnamon are both used to lower blood sugar; together their effects may add up, so watch for low blood sugar when combining them or using them with diabetes medication.^[7]

Partner Id: cinnamomum-cassia

Type: caution

Reviewed By: Omnia Sana (owner-authorized)

Reviewed Date: 2026-07-03

References

REF-2469, REF-2540, REF-2541, REF-2542, REF-2543

Common Slug

gymnema

References & Sources

Khan, V., Najmi, A.K., Akhtar, M., Aqil, M., Mujeeb, M. and Pillai, K.K (2012) 'A pharmacological appraisal of medicinal plants with antidiabetic potential', Journal of Pharmacy and Bioallied Sciences, 4(1), pp. 27-42. doi:10.4103/0975-7406.92727 Meta-analysis / review
https://doi.org/10.4103/0975-7406.92727
Devangan, S., Varghese, B., Johny, E., Gurram, S. and Adela, R (2021) 'The effect of Gymnema sylvestre supplementation on glycemic control in type 2 diabetes patients: A systematic review and meta-analysis', Phytotherapy Research, 35(12), pp. 6802-6812. doi:10.1002/ptr.7265 Meta-analysis / review
https://doi.org/10.1002/ptr.7265
Zamani, M., Ashtary-Larky, D., Nosratabadi, S., Bagheri, R., Wong, A., Rafiei, M.M., Asiabar, M.M., Khalili, P., Asbaghi, O. and Davoodi, S.H (2022) 'The effects of Gymnema Sylvestre supplementation on lipid profile, glycemic control, blood pressure, and anthropometric indices in adults: A systematic review and meta-analysis', Phytotherapy Research, 37(3), pp. 949-964. doi:10.1002/ptr.7585 Meta-analysis / review
https://doi.org/10.1002/ptr.7585
Bandala, C., Carro-Rodriguez, J., Cardenas-Rodriguez, N., Pena-Montero, I., Gomez-Lopez, M., Hernandez-Roldan, A.P., Huerta-Cruz, J.C., Munoz-Gonzalez, F., Ignacio-Mejia, I., Dominguez, B. and Lara-Padilla, E (2024) 'Comparative Effects of Gymnema sylvestre and Berberine on Adipokines, Body Composition, and Metabolic Parameters in Obese Patients: A Randomized Study', Nutrients, 16(14), pp. 2284. doi:10.3390/nu16142284 Randomized trial
https://doi.org/10.3390/nu16142284
Turner, S., Diako, C., Kruger, R., Wong, M., Wood, W., Rutherfurd-Markwick, K., Stice, E. and Ali, A (2022) 'The Effect of a 14-Day Gymnema sylvestre Intervention to Reduce Sugar Cravings in Adults', Nutrients, 14(24), pp. 5287. doi:10.3390/nu14245287 Randomized trial
https://doi.org/10.3390/nu14245287
Baskaran, K., Kizar Ahamath, B., Radha Shanmugasundaram, K. and Shanmugasundaram, E.R (1990) 'Antidiabetic effect of a leaf extract from Gymnema sylvestre in non-insulin-dependent diabetes mellitus patients', Journal of Ethnopharmacology, 30(3), pp. 295-300. doi:10.1016/0378-8741(90)90108-6 Clinical study
https://doi.org/10.1016/0378-8741(90)90108-6
Alam, F., Shafique, Z., Amjad, S.T. and Bin Asad, M.H.H (2018) 'Enzymes inhibitors from natural sources with antidiabetic activity: A review', Phytotherapy Research, 33(1), pp. 41-54. doi:10.1002/ptr.6211 Meta-analysis / review
https://doi.org/10.1002/ptr.6211
Kumar, S.N., Mani, U.V. and Mani, I (2010) 'An open label study on the supplementation of Gymnema sylvestre in type 2 diabetics', Journal of Dietary Supplements, 7(3), pp. 273-282. doi:10.3109/19390211.2010.505901 Clinical study
https://doi.org/10.3109/19390211.2010.505901
Shiyovich, A., Sztarkier, I. and Nesher, L (2010) 'Toxic hepatitis induced by Gymnema sylvestre, a natural remedy for type 2 diabetes mellitus', The American Journal of the Medical Sciences, 340(6), pp. 514-517. doi:10.1097/MAJ.0b013e3181f41168 Clinical study
https://doi.org/10.1097/MAJ.0b013e3181f41168

Generated July 6, 2026 from omniasana.bio