Safety
Olivaro side effects and interactions, ingredient by ingredient
No study has tested Olivaro itself, so its safety profile comes from research on each ingredient. The biggest risk is not a side effect but an interaction: chromium, ginseng, gymnema and African mango may add to diabetes drugs and push blood sugar too low (NIH ODS, Chromium) (NCCIH, Asian Ginseng). Grapefruit, licorice and L-tryptophan add other medicine flags.
Written by the Olivaro research deskUpdated
The numbers first
Is Olivaro safe to take?
For many healthy adults, 1 or 2 mL a day is a small amount. The blend tops out at 400 mg a day, shared by 22 ingredients. The risk rises when you take prescription medicine.
| Blend per day | 200-400 mg, 22 ingredients |
|---|---|
| Average share per ingredient | About 9-18 mg per day |
| Ingredients with a printed amount | 1 of 23 (chromium) |
| Caffeine | Not published |
| Trials of Olivaro itself | None published |
| Label caution | "Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18 and individuals with a known medical condition should consult a physician before using this or any dietary supplement." |

FDA does not approve supplements before they are sold (FDA, Using Dietary Supplements). Safety checks before launch are the seller's job, not the agency's.
By ingredient
What are the side effects of each Olivaro ingredient?
All 23 label ingredients, with the main side effects and interactions reported in our sources. Most reports involve far larger doses.
| Ingredient | Side effects and cautions | Interactions to ask about |
|---|---|---|
| Chromium picolinate | Rare kidney and liver reports at high doses | Insulin and diabetes drugs; levothyroxine absorption (NIH ODS, Chromium) |
| Maca | May not be safe in pregnancy or breastfeeding | Hormone-sensitive cancers (MSKCC, Maca) |
| Grape seed | Generally well tolerated | Little known in pregnancy (NCCIH, Grape Seed Extract) |
| Guarana | Nausea, poor sleep; high doses affect heart rhythm | Other stimulants; warfarin (MSKCC, Guarana) |
| African mango | Gas, headache, sleep problems; one kidney failure case | Diabetes drugs (MSKCC, Irvingia gabonensis (African mango)) |
| Eleuthero | Limited human data | Digoxin levels and digoxin tests (MSKCC, Siberian Ginseng (Eleuthero)) |
| Astragalus | Avoid with autoimmune disease | Immune-suppressing drugs (NCCIH, Astragalus) |
| Green tea | Rare liver injury from extracts; caffeine | Nadolol (NCCIH, Green Tea) |
| Gymnema | Dulls sweet taste; one reversible liver case | Diabetes drugs (Drugs.com, Gymnema monograph) |
| Coleus forskohlii | Low blood pressure, slow pulse, diarrhea | Blood pressure drugs; blood thinners (MSKCC, Forskolin (Coleus forskohlii)) |
| Capsicum | Stomach irritation | ACE inhibitors (cough) (MSKCC, Cayenne (Capsicum)) |
| Grapefruit | Amount unknown | Some statins, heart-rhythm, blood pressure and transplant drugs (FDA, Grapefruit juice and drugs) |
| Panax ginseng | Insomnia; may be unsafe in pregnancy | Diabetes drugs; blood clotting (NCCIH, Asian Ginseng) |
| Raspberry ketones | Safety not established | No data (OPSS (DoD), Raspberry Ketone) |
| L-glutamine | Not supported for performance; few concerns in studies | None in our sources (NIH ODS, Exercise & Athletic Performance) |
| L-tyrosine | No reliable dose or safety data was found for it at this amount | Ask about thyroid and MAOI drugs |
| L-arginine | Stomach upset; lowers blood pressure | Blood pressure drugs; not after a heart attack (MSKCC, Arginine) |
| Beta-alanine | Tingling at 800 mg or more, unlikely here | None in our sources (NIH ODS, Exercise & Athletic Performance) |
| Licorice compound | Irregular heartbeat with large or long use | High blood pressure; corticosteroids (NCCIH, Licorice Root) |
| GABA | No reliable dose or safety data was found for it at this amount | Not published |
| L-ornithine | No reliable dose or safety data was found for it at this amount | Not published |
| L-tryptophan | Linked to the 1989 EMS outbreak (contaminated product) | MAOIs, tramadol, sedatives, serotonin supplements (NORD, Eosinophilia-Myalgia Syndrome) (Drugs.com, L-tryptophan) |
| L-carnitine | Fishy odor, stomach upset near 3 g | Valproic acid (NIH ODS, Carnitine) |
Each herb has a fuller profile on the Olivaro ingredients overview.
Diabetes medicine
Can Olivaro cause low blood sugar with diabetes drugs?
It might, if you also take insulin, a sulfonylurea or a meglitinide. Those drugs can cause lows on their own, and four Olivaro ingredients may add to them (NIDDK, Low Blood Glucose) (ADA, Vitamins & Supplements).
What counts as low
For many people with diabetes, a reading under 70 mg/dL is low blood sugar (NIDDK, Low Blood Glucose).
What it feels like
Shakiness, sweating, hunger, dizziness, confusion and a fast heartbeat. Severe lows can cause seizures.
What to do
Take 15 to 20 g of fast carbohydrate, then recheck in 15 minutes, as NIDDK advises.
Check your meter more often during the first weeks and share the log. Talk to your doctor before you change any diabetes medicine. A supplement does not replace one (NCCIH, Diabetes and Dietary Supplements).
Caffeine
How much caffeine is in Olivaro?
The label does not say. Guarana and green tea both supply caffeine (MSKCC, Guarana) (NCCIH, Green Tea), but their shares of the blend are hidden.
The math sets a ceiling. The whole blend is at most 400 mg a day, so caffeine cannot come near FDA's 400 mg daily reference for healthy adults (FDA, Caffeine: how much is too much?). The real number is likely much lower.
- Count your coffee, tea, soda and energy drinks along with the drops.
- Jitters, a racing heart or poor sleep are signs to cut back.
- Ask first if you are pregnant or take stimulant medicine.
Three label flags
Why do grapefruit, licorice and L-tryptophan matter?
Each of these three can change how a common medicine behaves. Because their amounts are hidden, a pharmacist cannot rule them out by dose.
Grapefruit extract
Grapefruit blocks an enzyme called CYP3A4. Some statins and blood pressure, heart-rhythm, anti-anxiety and transplant drugs can then build up (FDA, Grapefruit juice and drugs).
Licorice compound
The label lists monoammonium glycyrrhizinate. Glycyrrhizin can disturb heart rhythm, and people with high blood pressure may react to small amounts (NCCIH, Licorice Root).
L-tryptophan
It can stack with MAOIs, tramadol, dextromethorphan and other serotonin-raising products. Get medical advice before combining them (Drugs.com, L-tryptophan).
A deeper look at the first two is on our licorice and grapefruit page.

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Is Olivaro dangerous for dogs?
Yes. The other ingredients include xylitol, which can drop a dog's blood sugar within 10 to 60 minutes (FDA, Paws Off Xylitol). People do not react to xylitol the same way.
If a dog gets into the bottle, call a vet or animal poison control at once. Store the bottle high, with the cap closed. Storage tips are on the Olivaro dosage page.
Check first
Who should talk to a doctor before taking Olivaro?
The label names three groups: pregnant or nursing women, anyone under 18 and anyone with a known medical condition. Medicines add more.
Olivaro is a dietary supplement; it is not a diabetes medicine. Check with your doctor or pharmacist first if you use insulin, a sulfonylurea or other glucose-lowering drug, a statin, blood pressure or heart-rhythm medicine, a blood thinner, an antidepressant or thyroid medicine, or if you are pregnant or nursing. The blend lists chromium, ginseng, gymnema, grapefruit, licorice, coleus, guarana and L-tryptophan. See side effects and interactions.
For a full list of people who should skip it, read who should not take Olivaro.
If you react
When should you stop taking Olivaro?
Stop at the first new symptom that worries you, then call your doctor. Call 911 for chest pain, fainting, trouble breathing or a seizure.
Stop the drops
Do not restart until a clinician says it is fine.
Check your blood sugar
If you use a meter, test now. Treat a low first, then call.
Watch for liver signs
Yellow skin or eyes, dark urine or upper-belly pain need a prompt visit.
Keep the bottle
Bring it, with the lot code O-26/OL-1646, to your appointment.
Report it
You or your doctor can file a report with FDA's MedWatch program. Reports help FDA spot problems with supplements.
For a refund, call the order desk at +1 (855) 889-3137 with your order ID.
Bottom line
Olivaro safety in one paragraph
Small doses make everyday side effects unlikely for most healthy adults. The real risks are interactions with diabetes, heart, blood pressure and mood medicines, plus xylitol for dogs. Check with your care team first, watch for lows and stop if anything new appears.
FAQ
Olivaro safety questions
What are the side effects of Olivaro?
No side effects have been studied for Olivaro itself. Its ingredients are linked to poor sleep, upset stomach, headache and gas, and rarely to liver or heart rhythm problems, mostly at far larger doses. Stop and call a doctor if you notice anything new after starting it.
Is Olivaro safe for diabetics?
It may not be safe for everyone with diabetes. Chromium, ginseng, gymnema and African mango may add to insulin or sulfonylureas and raise the chance of low blood sugar. Ask your doctor first, check your meter more often and never use Olivaro in place of prescribed medicine.
Can I take Olivaro with metformin?
Ask your doctor or pharmacist first. NIDDK names insulin, sulfonylureas and meglitinides as the drugs that cause lows, and many plans pair one of them with metformin. Several Olivaro ingredients may add glucose-lowering effects, and the label hides most amounts. Your prescriber can judge the full list against your medicines.
Can Olivaro interact with statins?
It might. The label lists grapefruit extract, and grapefruit can raise blood levels of some statins by blocking the CYP3A4 enzyme. Not every statin is affected. A pharmacist can tell you whether yours is, even though the grapefruit amount is not printed.
Does Olivaro raise blood pressure?
It is unlikely at these doses, but two ingredients point in opposite directions. The licorice compound can raise blood pressure in sensitive people, while coleus and L-arginine can lower it. If you take blood pressure medicine, check readings at home and ask your doctor first.
Can Olivaro hurt your liver?
Liver injury is not expected at these doses, but it cannot be ruled out. Green tea extract and gymnema both have rare liver reports. Stop and see a doctor if you notice yellow skin or eyes, dark urine or upper-belly pain.
Can I take Olivaro while pregnant or breastfeeding?
Not without your doctor's approval. The label tells pregnant or nursing mothers to consult a physician, and ginseng, maca, licorice and L-tryptophan all carry pregnancy cautions in our sources. Most ingredients have little safety data in pregnancy.
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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