Guide · Medicines
Blood Sugar Supplements and Diabetes Medicines: What Is Safe to Mix?
Blood sugar supplements and diabetes medicines can be a risky mix, because some supplement ingredients may add to a medicine's effect and push glucose below 70 mg/dL. The risk is highest with insulin and sulfonylureas. The American Diabetes Association does not recommend herbs or minerals for blood sugar. Ask your doctor or pharmacist before adding any product, GLPro included.
Written by the GLPro label deskUpdated
01The short answer
Can you take blood sugar supplements with diabetes medicines?
Blood sugar supplements and diabetes medicines can sometimes be taken together, but only after a doctor or pharmacist has checked the pair. Some ingredients sold for blood sugar may add to a medicine's effect. The result can be a low, which is a real danger.
Evidence of benefit is thin. Federal researchers call the data on supplements for diabetes weak and inconsistent, and say supplements must not replace treatment (NCCIH, Diabetes and Dietary Supplements). The American Diabetes Association advises against herbs and minerals for blood sugar (ADA Standards of Care 2026, Health Behaviors).
Keep taking prescribed medicine exactly as directed. No supplement on this site, GLPro included, is a reason to skip, cut or change a dose.
GLPro's ingredient list is not published, so the check must wait for the bottle panel. See what is known about GLPro ingredients.
02Medicines
Which diabetes medicines need the most care with supplements?
Insulin and sulfonylureas need the most care with supplements, because both can cause lows on their own. Taking more than one diabetes medicine raises the risk further (Mayo Clinic, diabetic hypoglycemia). Any product that nudges glucose down could add to that.
Other medicines matter too. Chromium, for one, may add to insulin and metformin and can cut levothyroxine absorption (NIH ODS, Chromium).
| Medicine group | Generic examples | Why it matters | Ask first |
|---|---|---|---|
| Insulin | All types | Lows are a known risk on their own | Should I check my glucose more often? |
| Sulfonylureas | Glipizide, glimepiride, glyburide | Raise low-sugar risk (Mayo Clinic, diabetic hypoglycemia) | Could this product add to my dose? |
| Metformin | Metformin | Some minerals may add to it (NIH ODS, Chromium) | Does any ingredient interact? |
| GLP-1 medicines | Semaglutide, liraglutide, tirzepatide | Lows are more serious with insulin or a sulfonylurea (Cleveland Clinic, GLP-1 agonists) | Is a "GLP-1" supplement any use here? |
| Thyroid medicine | Levothyroxine | Chromium may cut absorption (NIH ODS, Chromium) | How far apart should I take them? |
Category education only. None of these ingredients is confirmed in GLPro.
03Berberine
Is berberine safe with glipizide or other sulfonylureas?
Berberine with glipizide or another sulfonylurea is a pairing to clear with your doctor first. Berberine may interact with medicines, including diabetes medicines, and is not advised in pregnancy or while nursing (NCCIH, Diabetes and Dietary Supplements). Sulfonylureas already raise the chance of a low (Mayo Clinic, diabetic hypoglycemia).
A review of 37 trials found no significant rise in lows with berberine (Xie 2022, berberine meta-analysis), but those trials ran under medical care.
Berberine is not confirmed in GLPro, since no list is published. Read more on berberine for blood sugar.
04Lows
What are the signs of low blood sugar?
Low blood sugar signs include shaking, sweating, hunger, a racing heartbeat, confusion and irritability. For many people with diabetes, a reading below 70 mg/dL counts as low (NIDDK, Low Blood Glucose). The brain runs on glucose, so a deep low can affect thinking fast (Cleveland Clinic, Hypoglycemia).
The usual first step is 15 to 20 grams of fast-acting carbohydrate, then a recheck after 15 minutes. A severe low needs glucagon and a 911 call (NIDDK, Low Blood Glucose).
LOW BLOOD SUGAR
Signs of a low (hypoglycemia)
- Shaking, sweating, hungerOften the first signs
- Racing heartbeat, dizzinessSit down; check if you can
- Irritability, trouble concentratingCan come on fast
- Confusion, trouble seeing or speakingTreat at once
THE NUMBERS DOCTORS USE
What the test results mean
- A1CBelow 5.7% normal · 5.7-6.4% prediabetes · 6.5% or above diabetes
- Fasting glucose99 mg/dL or below normal · 100-125 prediabetes · 126 or above diabetes
- 2-hour glucose test139 mg/dL or below normal · 140-199 prediabetes · 200 or above diabetes
- A low, for many people with diabetesBelow 70 mg/dL
Emergency?A severe low (passing out or a seizure) needs glucagon and a 911 call. For a mild low, take 15 to 20 grams of fast-acting carbohydrate and recheck after 15 minutes.
Signs and steps from NIDDK and Mayo Clinic (NIDDK, Low Blood Glucose) (Mayo Clinic, diabetic hypoglycemia); test cutoffs for non-pregnant adults from NIDDK and CDC (NIDDK, Diabetes Tests & Diagnosis) (CDC, Diabetes Testing). Lows are most likely with insulin, a sulfonylurea or more than one diabetes medicine; some supplements may add to the effect (NIH ODS, Chromium) (NCCIH, Diabetes and Dietary Supplements). Keep taking prescribed medicine.
More on GLPro side effects and interactions.
GLPro: from $49 a bottle30 capsules · 2, 3 or 6 bottles · free US shipping on 6 · 60-day money-back guarantee
See packs05GLP-1 drugs
Can you take a supplement with a GLP-1 medicine?
Taking a supplement with a GLP-1 medicine is a question for the prescriber, every time. GLP-1 medicines such as semaglutide already cause nausea, vomiting and loss of appetite in some people. Lows become more serious when they are combined with insulin or a sulfonylurea (Cleveland Clinic, GLP-1 agonists).
A supplement sold as a "Natural GLP-1 Booster" is not part of that drug class. No study shows GLPro acts like those medicines. FDA has also warned about unapproved, compounded and fake versions of the drugs sold online (FDA, unapproved GLP-1 drugs).
Our GLP-1 guide separates the hormone, the medicines and the supplement label.
07Fit check
Who should ask a doctor before trying GLPro?
Anyone on a glucose-lowering medicine or a GLP-1 drug should ask a doctor before trying GLPro. The same goes for pregnancy, nursing, kidney or liver disease, a blood thinner or planned surgery. Answer the six questions below; one yes is enough reason to call.
See who GLPro is for, or start with blood sugar basics if the numbers are new to you.
08FAQ
Supplement and medicine questions
Q01Is it safe to add a blood sugar supplement to diabetes medicine?
No supplement has been shown to be a safe add-on for everyone. Reviews of common ingredients find weak, mixed evidence, and some may add to diabetes medicines. A doctor can weigh your medicines, readings and health before you try one, and can tell you what to watch for.
Q02Can I take a blood sugar supplement with metformin?
Ask your doctor or pharmacist first. Some minerals sold for blood sugar, such as chromium, may add to the effect of metformin and other diabetes drugs. Since GLPro's ingredients are not published, the check needs the actual bottle panel in hand.
Q03Does the FDA warn about weight-loss supplements with hidden ingredients?
Yes. FDA has issued notices about products sold as supplements that contained hidden drugs, such as sibutramine, not listed on the label. It says it cannot test every product and urges caution with items sold for weight loss, especially those promoted as all natural.
Q04Should I tell my doctor I take GLPro?
Yes. Tell every doctor, pharmacist and surgeon about any supplement you take, GLPro included. Bring the bottle, because its ingredients are not published anywhere else. That lets them spot a clash with your medicines or a reason to pause before a procedure.
Q05Can a supplement cause low blood sugar without diabetes medicines?
It is less common, but low blood sugar can occur without diabetes, for example a few hours after a meal or after heavy drinking. If you feel shaky, sweaty or confused after starting any product, stop it, eat fast-acting carbohydrate and tell your doctor.
Q06How long before surgery should I stop a supplement?
Your surgical team decides that, so ask at the pre-surgery visit. Federal health advice is to tell providers about every supplement well before surgery, because some can affect bleeding or anesthesia. Bring the bottle so they can read its full panel.
09Who wrote this
Written and reviewed by
Pages built from the bottle images, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by a U.S. stocking partner for GLPro, not by the manufacturer. We earn money when you buy through our order links.
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