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Ginseng Root vs Leaf Extracts: Why "Aerial" on the Olivaro Label Matters
Olivaro lists Panax ginseng aerial extract, meaning the leaf and stem, not the root. The best ginseng blood sugar evidence, a meta-analysis of 16 trials, found a modest fasting glucose drop of about 5.6 mg/dL and no A1C change, mostly from root preparations (Shishtar et al., PLoS One 2014). We found no trials of aerial extracts. Eleuthero, also on the label, is a different plant.
Written by the Olivaro research deskUpdated · 8 min read
One word on the label
What does "aerial" mean on the Olivaro label?
Aerial means the parts that grow above ground: leaves and stems. The Olivaro panel lists "Panax Ginseng Aerial Extract," twelfth of 22 blend ingredients.
Ginseng is famous for its root. Asian ginseng, Panax ginseng, is usually sold as dried root, root powder or root extract (NCCIH, Asian Ginseng). A leaf and stem extract comes from the same plant. It is still a different raw material.
That one word changes how you read the research. Most of the trials people quote used root preparations (Shishtar et al., PLoS One 2014). So before you lean on those results, it helps to know what they measured. You can see where the line sits on our label walkthrough.
The evidence
What did the big ginseng meta-analysis test?
It pooled 16 randomized trials with 770 people and looked at blood sugar control. Ginseng lowered fasting glucose by 0.31 mmol/L on average, with no clear effect on A1C or fasting insulin (Shishtar et al., PLoS One 2014).
| Trials pooled | 16 randomized controlled trials |
|---|---|
| People | 770 participants |
| Plants | Ginseng of the genus Panax |
| Daily doses | About 100 mg to 20 g |
| Fasting glucose | Down 0.31 mmol/L, about 5.6 mg/dL |
| A1C and fasting insulin | No significant overall effect |
| Consistency | High variation between trials |
| Aerial (leaf and stem) extracts | No trials found |
NCCIH reads the wider literature the same way. It calls the diabetes evidence for Asian ginseng inconclusive and conflicting, while noting a 2022 review of 20 studies that found better fasting glucose (NCCIH, Asian Ginseng).
Putting it in mg/dL
How big is a 5.6 mg/dL drop in fasting glucose?
Small. It is an average across trials, and averages hide wide swings. NIDDK puts prediabetes at a fasting glucose of 100 to 125 mg/dL (NIDDK, Diabetes & Prediabetes Tests). That range is 26 mg/dL wide.
- A 5.6 mg/dL drop is about one fifth of the prediabetes range.
- A1C, the three-month average, did not move in the pooled trials.
- Some trials found more, some found nothing. The high variation means the average is shaky.
So even root ginseng, at research doses, gave a modest signal on one number. NCCIH also says there is no reliable evidence that any herbal supplement, ginseng included, helps control diabetes (NCCIH, Diabetes and Dietary Supplements).
Plant parts
Why does root vs leaf matter for the evidence?
Because a result belongs to the thing tested. If trials used root, the result describes root. It cannot simply be copied onto a leaf and stem extract.
| Question | Root ginseng in trials | Olivaro's ginseng |
|---|---|---|
| Plant part | Mostly root preparations | Aerial parts: leaf and stem |
| Daily dose | About 100 mg to 20 g | Not published; small share of a 200 mg blend |
| Blood sugar data | Modest fasting glucose drop, no A1C effect | No trials found |
| Standardized to a marker | Varied by trial | Not stated |
Different plant parts can hold different mixes and amounts of active compounds. That is why herbal labels name the part. We looked for trials of aerial Panax ginseng extract on blood sugar and found none we could verify.
This is not proof that the leaf extract does nothing. It means nobody has shown what it does. The root data are the closest guide, and they are modest.
Label math
How much ginseng can one Olivaro dropper hold?
No more than about 17 mg per mL. Ginseng is twelfth in a 200 mg blend, and blends list ingredients from most to least by weight (21 CFR 101.36 (eCFR)). Eleven ingredients weigh at least as much, so ginseng's cap is 200 mg divided by 12.
| Ingredient | Position | Ceiling per mL | Ceiling per day, 2 droppers | Research dose per day |
|---|---|---|---|---|
| Panax ginseng aerial extract | 12 of 22 | About 17 mg | About 33 mg | About 100 mg to 20 g (root) (Shishtar et al., PLoS One 2014) |
| Eleuthero root extract | 5 of 22 | About 40 mg | About 80 mg | 800 mg in one trial (NIH ODS, Exercise & Athletic Performance) |
At its very highest, a full day of Olivaro gives about a third of the lowest ginseng dose in the meta-analysis. The likely amount is lower. An even split of the blend is about 9 mg per mL per ingredient.
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Order nowNot the same plant
Is eleuthero the same as ginseng?
No. Eleuthero, Eleutherococcus senticosus, is a separate plant often sold as "Siberian ginseng" (MSKCC, Siberian Ginseng (Eleuthero)). It is not a Panax species, so Panax ginseng research does not apply to it.
Olivaro lists "Eleutherococcus Senticosus Root Extract" fifth. Its evidence is thin:
- Human studies are limited, and Memorial Sloan Kettering says more are needed (MSKCC, Siberian Ginseng (Eleuthero)).
- Its blood sugar findings come only from animal studies (MSKCC, Siberian Ginseng (Eleuthero)).
- For exercise, neither eleuthero nor Panax ginseng showed much benefit in small studies (NIH ODS, Exercise & Athletic Performance).
Eleuthero has its own safety flag. A case report found it raised blood digoxin levels, and it may cause falsely high digoxin test results (MSKCC, Siberian Ginseng (Eleuthero)). If you take digoxin for your heart, tell your doctor before you start. Our ginseng and eleuthero page has both profiles.
Safety
Is ginseng safe if you take diabetes medicine?
It may add to your medicine's effect, so check first. NCCIH says Asian ginseng might lower blood sugar and that people with diabetes should consult a provider (NCCIH, Asian Ginseng).
Know the signs of a low: shakiness, sweating, hunger, confusion and a fast heartbeat, generally below 70 mg/dL (NIDDK, Low Blood Glucose). Talk to your doctor before you change any diabetes medicine.
NCCIH lists three more points for Asian ginseng (NCCIH, Asian Ginseng):
- It may interfere with blood clotting and interact with some medicines.
- Trouble sleeping is the most common side effect.
- It may be unsafe in pregnancy.
Our questions to ask your doctor list helps you raise these points in one visit.
Bottom line
Should ginseng be your reason to buy Olivaro?
No. If ginseng is the point, a root product that prints its dose is the closer match to the research.
What the label gets right
- It names the species and the plant part.
- Eleuthero is named separately, not passed off as ginseng.
What the evidence cannot support
- No trials of aerial ginseng extract.
- At most about a third of the lowest trial dose per day.
- Even root trials showed no A1C change.
Olivaro is a 22-ingredient blend sold as general support, not a ginseng supplement. We sell it and earn money on orders, so we would rather you buy it knowing exactly what the ginseng line can and cannot tell you.
FAQ
Ginseng in Olivaro: questions
What is Panax ginseng aerial extract?
It is an extract made from the parts of the Panax ginseng plant that grow above ground, the leaves and stems. Most ginseng sold in the U.S. is root. Olivaro lists the aerial extract twelfth of 22 ingredients in its 200 mg blend and does not print its amount.
Does ginseng lower blood sugar?
Modestly, at best, and mostly in root studies. A meta-analysis of 16 trials found fasting glucose fell about 5.6 mg/dL on average, with no effect on A1C. NCCIH calls the diabetes evidence inconclusive. It is not a replacement for diabetes medicine.
Is ginseng leaf as good as ginseng root?
Nobody knows yet for blood sugar. The trials people cite mostly used root preparations, and we found no verified trials of aerial leaf and stem extracts. Different plant parts can hold different compounds, so root results cannot be assumed to carry over.
Is Siberian ginseng real ginseng?
No. Siberian ginseng is eleuthero, Eleutherococcus senticosus, a different plant from Panax ginseng. Its blood sugar findings come only from animal studies. It can also raise digoxin levels and skew digoxin tests, so people on digoxin should ask a doctor first.
How much ginseng is in one Olivaro dropper?
The label does not say. Because ginseng is twelfth in a 200 mg blend, label order caps it at about 17 mg per mL, or about 33 mg a day at 2 droppers. Trials used about 100 mg to 20 g a day.
Can I take ginseng with metformin?
Ask your doctor first. Ginseng might lower blood sugar, and NCCIH advises people with diabetes to consult a provider before using it. The risk of lows is higher with insulin or sulfonylureas, so bring the Olivaro bottle to your next appointment and review your full medicine list.
Who wrote this
Written and reviewed by
We start from the bottle label, then check every claim against government and peer-reviewed sources linked on the page.
Last updated . Read our editorial standards and how we check reviews. This website is run by an authorized U.S. retailer, not by the manufacturer. We earn money when you buy through our order links.
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