Ingredient profile
Gymnema in GlucoZen: A Famous Herb in a Small Share
Gymnema leaf extract is eighth of 22 ingredients in GlucoZen's 200 mg blend, so each 1 mL holds at most 25 mg, or 50 mg a day. LiverTox lists a typical dose of 400 mg three times daily. Small trials found mild drops in fasting glucose, but gymnema has not been shown to treat diabetes.
Written by the GlucoZen editorial teamUpdated
The numbers
How much gymnema is in GlucoZen?
At most 25 mg per 1 mL serving. The label does not print the amount, but gymnema is eighth in a 200 mg blend that lists ingredients from heaviest to lightest (FDA, Labeling guide).
When an ingredient sits in place eight, it cannot outweigh the seven above it. So its share can be no more than 200 divided by 8, or 25 mg. The real figure could be much lower. At two servings a day, the ceiling is 50 mg.
| Measure | GlucoZen (most possible) | Typical dose (LiverTox) |
|---|---|---|
| Per dose | 25 mg in 1 mL | 400 mg |
| Doses per day | 2 | 3 |
| Per day | 50 mg | 1,200 mg |
| Share of typical daily dose | About 4% at most | 100% |
| Amount printed? | Not published | Not applicable |
Even the whole daily blend, all 22 ingredients together, weighs 400 mg. That is a third of gymnema's typical daily dose on its own.
Blend math
Where does gymnema sit in the GlucoZen blend?
Eighth of 22. Gymnema is the highlighted row lower in the list.
- 1Maca root extract9 to 200 mg
- 2Grape seed extract0 to 100 mg
- 3Guarana seed extract0 to 67 mgA natural caffeine source; caffeine amount not printed
- 4African mango fruit extract0 to 50 mg
- 5Eleuthero root extract0 to 40 mg
- 6Astragalus root extract0 to 33 mg
- 7Green tea leaf extract0 to 29 mgAlso contains caffeine
- 8Gymnema leaf extract0 to 25 mgThe herb most tied to blood sugar claims
- 9Forskohlii root extract0 to 22 mg
- 10Bird pepper (capsicum) fruit extract0 to 20 mg
- 11Grapefruit seed extract0 to 18 mg
- 12Asian ginseng root extract0 to 17 mg
- 13Raspberry ketones0 to 15 mg
- 14L-glutamine0 to 14 mg
- 15L-tyrosine0 to 13 mg
- 16L-arginine0 to 12 mg
- 17Beta-alanine0 to 12 mg
- 18Monoammonium glycyrrhizinate (licorice)0 to 11 mg
- 19GABA0 to 11 mg
- 20L-ornithine HCl0 to 10 mg
- 21L-tryptophan0 to 9.5 mg
- 22L-carnitine0 to 9.1 mg
Blend ingredients are listed from heaviest to lightest (FDA, Labeling guide), so the ingredient in place k can weigh at most 200 ÷ k mg per serving. That is our math from the label, not a lab test. Chromium sits outside the blend with its own amount: 0.7 mcg.
Maca, grape seed and guarana come first, so they likely make up the biggest shares. Gymnema follows African mango, eleuthero, astragalus and green tea. Our guide to reading a proprietary blend explains the math step by step.
The herb
What is gymnema and why is it in GlucoZen?
Gymnema is a leafy herb, Gymnema sylvestre, used in Ayurvedic tradition. The GlucoZen label lists it as "Gymnema (leaf) extract (Gymnema Sylvestre)."
Supplement makers market it for blood sugar and sugar cravings. It is the blend ingredient most tied to blood sugar claims, which likely explains its place in a product labeled "Blood Sugar Support." That positioning is the brand's, not a finding about GlucoZen.
- Part used: the leaf, as an extract.
- Place on the label: 8 of 22 in the Proprietary Herbal Blend.
- Extract strength: not printed, so the active content is unknown.
Research
Does gymnema lower blood sugar?
Not in a way that has been shown to treat diabetes. LiverTox reports that several small human trials found mild drops in fasting glucose, but overall effectiveness in treating diabetes has not been shown (LiverTox, Gymnema).
Gymnema is also not approved as therapy for any condition in the United States (LiverTox, Gymnema). And those small trials used their own doses, usually far more than 25 mg. Results at a typical dose do not tell you what a much smaller share will do.
The ADA's 2026 Standards of Care say herb and spice supplements are not recommended for blood sugar benefit (ADA, Standards of Care 2026). Gymnema falls in that group.
The brand's broader claims are weighed one by one on the claims and evidence page.
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Can gymnema hurt your liver?
Rarely, it may. LiverTox gives gymnema a likelihood score of D, meaning a possible rare cause of clinically apparent liver injury (LiverTox, Gymnema).
The score rests in part on a case of a woman with type 2 diabetes who developed jaundice after drinking gymnema tea (LiverTox, Gymnema). Jaundice is a yellowing of the skin or eyes. One case does not prove gymnema caused it, but it is why the herb carries a liver flag.
Stop taking any supplement and call a clinician if you notice yellow skin or eyes, dark urine or belly pain. GlucoZen also contains green tea extract, which carries its own liver flag (LiverTox, Green tea).
Medicines
Is gymnema safe to take with diabetes medication?
Ask first. Five questions show where to start.
Gymnema could add to the effect of diabetes medicines. The ADA warns that some supplement ingredients can intensify diabetes drugs and cause low blood sugar (ADA, Vitamins and supplements). Insulin, sulfonylureas and meglitinides carry the most risk of lows, below 70 mg/dL for many people (NIDDK, Hypoglycemia).
Keep taking every medicine as prescribed. Share the GlucoZen label with your clinician, and keep checking your readings. All the cautions for the formula are on the side effects page.
Profile
Gymnema in GlucoZen at a glance
| Label name | Gymnema (leaf) extract (Gymnema Sylvestre) |
|---|---|
| What it is | Gymnema sylvestre leaf |
| Type | Ayurvedic herb |
| Position on the label | 8 of 22 in the blend |
| Amount per serving | Not printed (at most 25 mg per serving by label order) |
| What research shows | Small trials showed mild drops in fasting glucose; a typical dose is 400 mg three times a day |
| Strength of evidence | Weak; not shown to treat diabetes |
| Why it is in the formula (brand view) | Marketed for blood sugar and sugar cravings |
| Main caution | Could add to diabetes medicines. Rare liver injury has been reported. |
See where gymnema fits among all 23 actives on the ingredients page.
FAQ
GlucoZen gymnema FAQ
How much gymnema should you take a day?
LiverTox lists a typical dose of 400 mg three times daily, or 1,200 mg a day. That is a reference figure, not proof it works. GlucoZen holds at most 50 mg a day, and your clinician should guide any herb use.
Does gymnema stop sugar cravings?
That is a marketing claim, and the sources we cite do not support it. LiverTox describes small trials with mild drops in fasting glucose, not proven effects on cravings. No study has tested GlucoZen for cravings.
Can gymnema cause liver damage?
Rarely. LiverTox rates gymnema a possible rare cause of liver injury, citing a woman with type 2 diabetes who developed jaundice after gymnema tea. Stop and call a clinician for yellow skin or eyes or dark urine.
Is 25 mg of gymnema enough to work?
No study shows it is. Twenty-five mg is the most GlucoZen can hold per serving by label order, about a sixteenth of the 400 mg typical single dose. Small trials at higher doses showed only mild changes.
Is gymnema approved to treat diabetes?
No. LiverTox states that gymnema is not approved as therapy for any condition in the United States, and that its effectiveness in treating diabetes has not been shown. It is sold only as a supplement ingredient.
Where is gymnema listed on the GlucoZen label?
Eighth in the Proprietary Herbal Blend, as Gymnema (leaf) extract (Gymnema Sylvestre). It comes after green tea leaf extract and before forskohlii root extract. No amount is printed for it.
Who wrote this
Written and reviewed by
Plain-language pages built from the label, the sales site and linked public health sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Theglucozen, a USA authorized GlucoZen retailer, not by the manufacturer. We earn money when you buy through our order links.
Keep reading
More about GlucoZen
Ingredients
All 23 label ingredients, the most each one can weigh, and what research says about them.
Read more
Claims and evidence
Each GlucoZen claim, who makes it, and how far the evidence behind it really goes.
Read moreHow to read a proprietary blend
The simple division that shows the most each ingredient in a proprietary blend could weigh, worked through on a real label.
Read moreUSA authorized GlucoZen retailer
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