Ingredient profile
Gymnema in Sugar Defender: At Most 25 mg, Next to the Studied Dose
Gymnema in Sugar Defender is a Gymnema sylvestre leaf extract, eighth of 22 ingredients in the 200 mg blend. The label hides its amount, but its place caps it at 25 mg per mL. Glucose studies used 200 to 400 mg a day of standardized extract and found only a small effect, so the drops hold a fraction of that.
Written by the Sugar Defender label teamUpdated
The label line01
What is gymnema in Sugar Defender?
Gymnema in Sugar Defender is an extract of Gymnema sylvestre leaves, printed as "Gymnema Sylvestre Leaf Extract" in the proprietary blend. It is a climbing plant from India, used in Ayurvedic practice under the name gurmar.
Its best-known effect is on taste: gymnema can dull the sweetness of foods (Drugs.com, Gymnema monograph).
On the label, gymnema is the eighth of 22 blend lines. Seven ingredients sit above it by weight, from maca root down to green tea leaf.
Like every blend line, it has no printed amount. Only the blend total, 200 mg per mL, appears on the panel.
| Name on the label | Gymnema Sylvestre Leaf Extract |
|---|---|
| What it is | Gymnema sylvestre leaf |
| Place on the label | 8 of 22 in the 200 mg proprietary blend |
| Amount per mL (1 dropper) | Not listed; #8 of 22 in the 200 mg blend, so at most 25 mg per mL |
| Amount used in research | 200-400 mg a day of extract |
| Strength of evidence | Small trials; small effect |
| Marketed or traditional use | Ayurvedic leaf known as gurmar |
| Main caution | May add to diabetes medicines; dulls sweet taste. |
Blend math02
How much gymnema is in Sugar Defender?
Sugar Defender holds at most 25 mg of gymnema per 1 mL serving. That ceiling comes from the label order, not from a printed number.
A blend lists its parts from most to least by weight (21 CFR 101.36 (eCFR)). Gymnema is eighth, so the seven lines above it each weigh at least as much. Eight equal or larger shares cannot exceed 200 mg, so gymnema tops out at 200 / 8 = 25 mg.
The real figure is likely lower. An even split of 200 mg across 22 lines gives about 9 mg each.
| Scenario | Gymnema per mL | Share of 200 mg a day |
|---|---|---|
| Even split (200 mg / 22) | About 9 mg | About 4.5% |
| Label-order ceiling (place 8) | At most 25 mg | 12.5% |
| Low end of glucose studies | 200 mg a day | 100% |
| High end of glucose studies | 400 mg a day | 200% |
| Printed on the label | Not published | Not published |
Dose vs research03
What gymnema dose did blood sugar studies use?
Gymnema studies on blood sugar mostly used 200 to 400 mg a day of an extract standardized to 25% gymnemic acids (Drugs.com, Gymnema monograph). Other trials used 500 to 1,000 mg a day of leaf extract.
Gymnemic acids are the compounds thought to do the work. The Sugar Defender label does not say whether its extract is standardized, or to what level.
So even the 25 mg ceiling cannot be turned into a gymnemic acid amount. At the same 25% strength, it would be about 6 mg; nobody can confirm that from the bottle.
Studied amount
200 to 400 mg of standardized extract a day.
Most per mL
25 mg, set by place 8 in the blend.
Gap at best
The ceiling is one-eighth of the low end.
Evidence04
Does gymnema help blood sugar?
Gymnema has small, early evidence for blood sugar. A 2021 meta-analysis of 10 small studies found a fasting-glucose drop that was statistically significant but small in clinical terms (Drugs.com, Gymnema monograph).
The same monograph says robust clinical trials are still lacking. Most studies were short and small.
NCCIH finds no reliable evidence that any herbal supplement helps to control diabetes (NCCIH, Diabetes and Dietary Supplements). No trial has tested gymnema inside Sugar Defender.
- Strength of evidence: small trials, small effect
- Doses tested: 200 to 400 mg a day, or more
- Trials of these drops: none
Sales claim05
Does gymnema in Sugar Defender support the heart and blood sugar?
The evidence does not show that it does at this dose. The sales page lists gymnema under "Supports Healthy Heart & Blood Sugar" (Sugar Defender sales and order pages), while the studies behind the blood sugar half used 8 to 16 times the ceiling (Drugs.com, Gymnema monograph).
The heart half has even less behind it. The gymnema sources we checked describe glucose and taste research, not heart outcomes.
The line sits on the sales page, not the label. The bottle carries the FDA statement and promises no specific result.
A line about gymnema describes the plant in general. It says nothing about what a 1 mL serving with at most 25 mg can do.
Sugar Defender: from $49 a bottle60 mL · 1 mL a day · free US shipping on 3 or 6 · 60-day money-back guarantee
See packsCautions06
Is the gymnema in Sugar Defender safe?
Gymnema at a few milligrams is unlikely to bother most adults, but it may add to diabetes medicines. If you take insulin or a sulfonylurea, ask your doctor before starting any gymnema product.
The monograph also notes one case report of liver injury, which reversed after the person stopped (Drugs.com, Gymnema monograph). That case involved a separate gymnema product, not these drops.
The label asks anyone on other medication, and anyone pregnant or nursing, to consult a physician first.
Do not trade a diabetes drug for a herb. Some supplements can push glucose too low when combined with those drugs (ADA, Vitamins & Supplements). A low is under 70 mg/dL, often with shaking, sweating or confusion (NIDDK, Low Blood Glucose).
All flags for the formula are on the Sugar Defender side effects page.
In the serving07
How does gymnema fit in a 1 mL Sugar Defender serving?
Gymnema is one mid-list share of the 200 mg blend in each 1 mL Sugar Defender serving. It weighs no more than the seven lines above it and no less than the 14 below.
That middle place puts it near caffeine sources and weight-loss extracts. Green tea sits just above; coleus forskohlii sits just below.
Whether a few milligrams dull sweet taste in drops has not been tested. The taste effect is covered in our gymnema sylvestre and sugar cravings post.
Find gymnema on your bottle
Count down the blend list from maca root. The eighth name reads "Gymnema Sylvestre Leaf Extract". The leaf is the part used, as the label says.
Compare it with the other lines on the Sugar Defender ingredients list.
Bottom line08
Is the gymnema in Sugar Defender enough to matter?
Probably not for blood sugar. The gymnema in Sugar Defender is real and named, but its most possible amount is one-eighth of the smallest studied dose.
If gymnema is what draws you, ask your doctor about it as a separate question, with its own dose and its own drug check.
If the drops appeal for the routine, weigh the whole label and the Sugar Defender benefits claims side by side.
FAQ09
Gymnema in Sugar Defender: questions
How much gymnema is in Sugar Defender?
The label does not say. Gymnema is eighth of 22 lines in a 200 mg blend, so it holds at most 25 mg per 1 mL serving. An even split would be about 9 mg. Studies used 200 to 400 mg a day of standardized extract (Drugs.com, Gymnema monograph).
Does the gymnema in Sugar Defender block sweet taste?
It might dull sweetness slightly. Reduced sweet taste is gymnema's best-known effect (Drugs.com, Gymnema monograph), but the studies used leaf or larger extract doses. With at most 25 mg per mL, mixed with stevia and xylitol, the effect in these drops has not been tested.
Is the gymnema in Sugar Defender standardized to gymnemic acids?
The label does not say. It prints only "Gymnema Sylvestre Leaf Extract" with no strength. Many studies used extracts standardized to 25% gymnemic acids (Drugs.com, Gymnema monograph), so the active amount per mL here cannot be worked out from the bottle.
Can I take Sugar Defender with metformin if it contains gymnema?
Ask your doctor first. Gymnema may add to diabetes medicines, and the label asks anyone on medication to consult a physician. Insulin and sulfonylureas are the drugs most tied to lows (NIDDK, Low Blood Glucose), but your care team should decide.
Is the gymnema dose in Sugar Defender too small to work?
By the label math, yes for blood sugar. The ceiling of 25 mg is one-eighth of the 200 mg low end of studies, and even studied doses gave a small effect (Drugs.com, Gymnema monograph). No trial has tested the drops, so no one knows their effect.
Can gymnema harm the liver?
Rarely, it seems. The Drugs.com monograph cites one case report of liver injury from a gymnema product, which reversed after stopping (Drugs.com, Gymnema monograph). That is not proof of risk at a few milligrams, but tell your doctor if you have liver disease.
Who wrote this10
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and the way we check reviews. This website is run by an authorized American Sugar Defender outlet, not by the manufacturer or the distributor. Purchases made through our order links earn us money.
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