Research review
Does dandelion root help with diabetes? What the research does and doesn't show
No human trial has tested dandelion root against diabetes, blood sugar or PCOS. The relevant research is a mouse study of dandelion leaf extract on a high-fat diet, which reported changes in fasting glucose and insulin — an animal finding, not a human one.
No human trial has tested dandelion root against diabetes or blood sugar. The research that exists is animal: mice on a high-fat diet given dandelion leaf extract showed changes in fasting glucose and insulin, alongside changes in liver fat and body weight — a mouse study, not a trial in people with diabetes or prediabetes.
What the evidence doesn't support
It doesn't support dandelion root tea, capsules or extract for managing blood sugar, diabetes, prediabetes or PCOS. No trial has given a person with any of these conditions dandelion root and measured their blood sugar, HbA1c or insulin before and after. What's been studied is dandelion leaf extract mixed into feed for mice, at a dose that doesn't translate into a cup of tea or a capsule count for a person.
What the trials found
A 2013 study fed mice a high-fat diet, with one group's diet also supplemented with dandelion leaf extract at 2 or 5 grams per kilogram of feed. Compared with mice on the high-fat diet alone, the supplemented mice showed reduced fasting glucose and insulin, along with reduced serum triglycerides and total cholesterol, less liver fat, and more activation of AMPK (an enzyme involved in glucose and fat metabolism) in liver and muscle tissue. This is a high-fat-diet mouse model, not a study of people with diabetes, and the extract was leaf, mixed into feed, not root steeped as tea.
Two broader reviews of the Taraxacum genus summarize similar animal and lab findings — describing "blood sugar and blood lipid management properties" reported across various dandelion extracts and isolated compounds in rodent and cell studies — while both note that clinical (human) research on dandelion for this purpose is limited or absent. Neither review reports a completed human trial.
Questions people ask
Is dandelion root good for diabetes?
No human trial has tested this. The relevant research is a mouse study of dandelion leaf extract on a high-fat diet, not a study of people with diabetes.
Is dandelion root tea good for type 2 diabetes?
There's no trial to point to. The mouse study that exists used leaf extract mixed into feed, not tea, and measured mice on an induced high-fat diet, not people with type 2 diabetes.
Is dandelion root good for PCOS?
No study has tested dandelion root against PCOS specifically. The insulin- and glucose-related findings above come from a high-fat-diet mouse model, not a PCOS study in any species, so they don't extend to a PCOS answer.
When to talk to a doctor
Dandelion root is not a treatment for diabetes, prediabetes or PCOS, and it shouldn't replace a diabetes medication, blood sugar monitoring, or a doctor's care. If you take insulin or another diabetes medication, check with your doctor or pharmacist before adding dandelion root — a diuretic effect and unstudied interactions are both reasons to ask first. See dandelion root and medications.
Sources
- Taraxacum official (dandelion) leaf extract alleviates high-fat diet-induced nonalcoholic fatty liver In mice fed a high-fat diet, adding dandelion leaf extract to the feed resulted in less weight gain, less liver fat, and better blood sugar and cholesterol markers than the high-fat diet alone — an animal study of leaf extract, not root, and not a human weight-loss trial.
- Plants of the Spontaneous Flora with Beneficial Action in the Management of Diabetes, Hepatic Disorders, and Cardiovascular Disease A review summarizing animal and lab research on dandelion (and related plants) reports triglyceride- and cholesterol-lowering effects in rodent studies, while noting the underlying evidence is preclinical, not from trials in people.
- Taraxacum: A Review of Ethnopharmacology, Phytochemistry and Pharmacological Activity A review of dandelion pharmacology research describes blood-sugar and blood-lipid effects reported in lab and animal studies, without citing a completed human trial for either.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.