Guide
Supplements and Diabetes Medicine: What to Check Before You Mix Them
Supplements and diabetes medicine can interact. Chromium, L-arginine, ginseng and gymnema each have a source saying they may add to the effect of insulin or diabetes pills, so low blood sugar is possible. Glyco Harmony lists chromium and 22 blend names. Keep taking prescribed medicine and ask your pharmacist first.
Written by the Glyco Harmony label deskUpdated
The short answer01
Can you take supplements with diabetes medicine?
Sometimes, but only after your doctor or pharmacist says so. Herbal products can cause side effects with diabetes drugs, and some supplements cause low or high blood sugar (NCCIH, Diabetes and Dietary Supplements)(American Diabetes Association, Vitamins and Supplements).
The reason is simple. Your medicine is set to a dose. A supplement that also nudges blood sugar can push the total too far. In people with diabetes, medicine is the most common cause of low blood sugar (Mayo Clinic, Hypoglycemia).
Keep taking prescribed medicine. Never change insulin or diabetes medicine because of a supplement. Tell every provider about every supplement you take (NCCIH, Using Dietary Supplements Wisely).
Ingredient by ingredient02
Which Glyco Harmony ingredients may interact with diabetes medicine?
Four names on the label have a source linking them to blood sugar medicine: chromium, L-arginine, Panax ginseng and gymnema. Others carry cautions with different drugs.
The label gives the blend names but no single amounts, so we cannot say how much of any name you get. The cautions below come from the sources, not from a test of the drops.
| Ingredient | Caution |
|---|---|
| Chromium picolinate (0.7 mcg) | May add to insulin and metformin effects; may lower levothyroxine absorption (NIH ODS, Chromium fact sheet) |
| L-arginine | May lower blood sugar, so doses of diabetes medicine may need adjusting; may drop blood pressure too low (Mayo Clinic, L-arginine) |
| Panax ginseng | Might lower blood sugar; may interfere with blood clotting (NCCIH, Asian Ginseng) |
| Gymnema | Modest drops in fasting glucose in trials; rare liver injury (LiverTox, Gymnema) |
| Green tea extract | Can lower blood levels of nadolol and atorvastatin (NCCIH, Green Tea) |
| Coleus forskohlii | May add to blood pressure drugs; bleeding risk with warfarin (MSK, Forskolin (Coleus forskohlii)) |
| Licorice compound | Can raise blood pressure and lower potassium (NCCIH, Licorice Root) |
Single-name pages explain more, for example chromium picolinate and glycyrrhizinate.
Check yourself03
Is a blood sugar supplement safe for you to try?
That depends on your medicines and your health. Five questions show whether to talk to your doctor first. Most people with diabetes medicine will need to.
This is a checklist, not medical advice. A pharmacist can check your list of medicines for interactions in minutes.
A safe order of steps04
How do you take blood sugar support safely?
Ask first, start only with a yes, and follow the label exactly. For Glyco Harmony, the label says to shake well and take 1 or 2 droppers full daily.
Before you buy
Show your doctor or pharmacist the label and the 22 names. Mention insulin, pills, blood thinners and blood pressure medicine.
The first day
If cleared, follow the label. It says not to exceed the recommended dose. It does not say how much a dropper holds.
The weeks after
Keep your usual checks. Write down any shaking, sweating, dizziness or stomach upset, and report it.
If anything is off
Stop and call your provider. Confusion, fainting or a seizure needs 911.
Full directions are on how to use Glyco Harmony. The label says pregnant or nursing mothers, children under 18 and anyone with a known medical condition should consult a physician.
Glyco Harmony: 2 fl oz (60 mL), 60 servings1 or 2 droppers a day · 2, 4 or 8 bottles · price and guarantee terms at checkout
See packsIf sugar drops06
What are the warning signs of low blood sugar from mixing medicine?
Shaking, sweating, hunger, a fast heartbeat and irritability are early signs. Confusion, slurred speech, fainting and seizures are severe signs (Mayo Clinic, Hypoglycemia).
Below 70 mg/dL is low, and below 54 mg/dL is severe (CDC, Low Blood Sugar (Hypoglycemia)). Follow the plan your care team gave you. The full list is on low blood sugar signs.
- Shaky, sweaty, hungry, fast heartbeatThese can be low blood sugar (under 70 mg/dL is low). If you have diabetes, follow your own plan.
- Confusion, slurred speech, faintingSevere low blood sugar. Someone with diabetes who has severe symptoms or loses consciousness needs emergency care.
- Yellow skin or eyes, dark urinePossible liver trouble. Stop the drops and call your doctor. Liver injury has been reported with green tea extract and gymnema.
- Irregular heartbeat or very high blood pressureLicorice compounds such as glycyrrhizin can cause these. Get medical care.
- Call 911 nowA seizure, loss of consciousness, trouble breathing, or swelling of the face or lips needs emergency care. Do not wait for a supplement.
Signs from (CDC, Low Blood Sugar (Hypoglycemia)) (Mayo Clinic, Hypoglycemia) (LiverTox, Green Tea) (NCCIH, Licorice Root). This list is not complete, and a supplement is never a reason to wait.
FAQ07
Supplement and medicine questions
Can I take supplements with metformin?
Ask your doctor or pharmacist first. Chromium may add to the effects of insulin and metformin, and herbal products can cause side effects with diabetes drugs. Do not change your metformin dose because of a supplement.
Can a supplement cause low blood sugar?
Yes, some can, especially with diabetes medicine. Chromium, L-arginine and ginseng each have a source saying they may lower blood sugar. Know the warning signs and follow your care team's plan.
Do I need to tell my doctor about supplements?
Yes. Tell every provider about every supplement, including drops. Supplements can interact with prescription and over-the-counter drugs. Bring the bottle and the Supplement Facts panel to your visit.
What should I do if I take insulin and want to try Glyco Harmony?
Talk to your doctor before you start. Insulin and several of the label's names may both affect blood sugar. Never change an insulin dose because of a supplement.
Can green tea extract interact with my medicines?
It can lower blood levels of nadolol and atorvastatin, and an NCCIH-funded study found an interaction with raloxifene. Green tea extract has also caused rare liver injury. Check with your pharmacist.
How do I take blood sugar support drops?
Follow the label: shake well, then take 1 or 2 droppers full daily and swallow. Do not exceed the recommended dose. The label gives no time of day and does not define a dropper.
Sources (14)
- Low Blood Sugar (Hypoglycemia)Centers for Disease Control and Prevention, 2024
- Hypoglycemia - Symptoms and causesMayo Clinic, 2026
- Diabetes and Dietary Supplements: What You Need To KnowNational Center for Complementary and Integrative Health (NIH), 2023
- Vitamins & Supplements for DiabetesAmerican Diabetes Association, n.d.
- Using Dietary Supplements WiselyNational Center for Complementary and Integrative Health (NIH), 2019
- Chromium - Health Professional Fact SheetNIH Office of Dietary Supplements, 2022
- Green Tea: Usefulness and SafetyNational Center for Complementary and Integrative Health (NIH), 2025
- Green Tea (LiverTox)NIDDK LiverTox, NCBI Bookshelf, 2020
- Asian Ginseng: Usefulness and SafetyNational Center for Complementary and Integrative Health (NIH), 2025
- Gymnema (LiverTox)NIDDK LiverTox, NCBI Bookshelf, 2024
- ForskolinMemorial Sloan Kettering Cancer Center, 2023
- Licorice Root: Usefulness and SafetyNational Center for Complementary and Integrative Health (NIH), 2025
- L-arginineMayo Clinic, 2026
- FDA warns consumers of hidden drug ingredients in Dr. Ergin's SugarMD Advanced Glucose SupportU.S. Food and Drug Administration, 2023
Who wrote this08
Written and reviewed by
Pages built from the label, the brief and linked NIH, FDA, FTC, Mayo Clinic and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site of Theglycoharmony, the U.S. stocking partner for Glyco Harmony. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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