Drug & supplement interaction

Atkins Diet + Metformin XR

Metformin XR brand name: Glucophage XR.

Minor Interaction
Medically reviewed by · Updated September 2026
The bottom line Minor

Atkins Diet has a minor interaction with Metformin XR. Theoretically, following the Atkins diet might have additive hypoglycemic effects.

Read the full interaction report
SeverityMinor
LikelihoodUnlikely
EvidenceC
What do Severity, Likelihood & Evidence mean?
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Interaction report

Atkins Diet and Metformin XR

Here is the interaction we found between these two, with the evidence behind it.

Minor

ANTIDIABETES DRUGS

Why this applies to Metformin XR

Metformin XR falls under ANTIDIABETES DRUGS — the group Atkins Diet interacts with.

Theoretically, following the Atkins diet might have additive hypoglycemic effects.
Following the Atkins diet while taking antidiabetes drugs might increase the risk of hypoglycemia. In patients with diabetes, low-carbohydrate diets such as the Atkins diet can reduce the need for antidiabetes drugs; monitor blood glucose closely.
Severity Minor Likelihood Unlikely Evidence C

Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans..

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the simple version: when you cut carbs way down on the Atkins plan, your blood sugar naturally tends to run lower. Metformin XR is already working to keep your sugar in check, so doing both at once can stack on top of each other and push your numbers down further than expected.

Now, the good news is that metformin by itself rarely causes true low blood sugar (hypoglycemia), so this is considered a minor and unlikely concern, and it's based mostly on expert opinion rather than hard studies. Still, if you eat very few carbs you may not need as much of your diabetes medicine. The smart move is to check your blood sugar more often and watch for shakiness, sweating, or dizziness. Loop in your doctor or pharmacist before changing anything.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Kirkpatrick CF, Bolick JP, Kris-Etherton PM, et al. Review of current evidence and clinical recommendations on the effects of low-carbohydrate and very-low-carbohydrate (including ketogenic) diets for the management of body weight and other cardiometaboli

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Atkins Diet Also Interacts With Other Medications

Atkins Diet has 85 minor known drug interactions in our database — the Metformin XR one above is one of them. If you take anything else, check it against the full list below.

Minor 85 No known interaction 2,745 (incl. Metformin XR)
Taking anything else?

Check Another of Your Medications Against Atkins Diet

Covers the 2,830 medications we’ve checked against Atkins Diet. Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Metformin XR

This page covers Atkins Diet only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Metformin XR page lists 256 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Siberian Cocklebur (major), Acai (moderate), African Wild Potato (moderate) and Agaricus Mushroom (moderate).

By severity: 2 major · 215 moderate · 39 minor.

From our pharmacist’s overview on the Metformin XR page

“Siberian cocklebur stands alone at the top of this list; its seeds have caused severe low blood sugar in humans, and no one taking metformin XR (Glucophage XR) should use it. Almost everything else here, 239 of the 256 ingredients, affects blood sugar too, so this list earns real caution.”

Reviewed by 2 · Jul 18, 2026

Open the Metformin XR interaction page

How much people look this up

Where Atkins Diet and Metformin XR Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Atkins Diet
Steady interest

#815 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Metformin XR
Top 25%

#354 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Eating pattern

About Atkins Diet

What is Atkins Diet?

  • Weight loss
  • Blood sugar control
  • Reducing carbohydrate intake
  • Improving certain cholesterol markers
  • Appetite control

The Atkins Diet is a low-carbohydrate eating plan that can help some people lose weight and improve blood sugar in the short term. Long-term results often match other diets, and the plan is restrictive and may not suit everyone. Talk with your doctor or pharmacist before starting, especially if you have diabetes, kidney, or heart concerns.

Read the full Atkins Diet monograph & all interactions
Keep checking

Other Drugs & Atkins Diet

Browse every other medication we’ve checked against Atkins Diet — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
85Minor
2,744No known interaction
85 Minor 2,744 No interaction
Minor

85 interactions

Showing 60 of 85 minor interactions — see all 85 on the Atkins Diet page.

No interaction 2,744 drugs checked — show the list

We also checked Atkins Diet against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,744 medications checked with no known interaction — see the full Atkins Diet list.

See the full Atkins Diet interactions page
See every supplement checked against Metformin XR, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Atkins Diet monograph › Uses, safety, and every drug interaction in one place Metformin XR supplement interactions › Every supplement checked against Metformin XR, ranked by severity Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Following Atkins Diet While Taking Metformin XR: Common Questions

Can you follow Atkins Diet while taking Metformin XR?
There is only a minor interaction, which is usually not serious. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Atkins Diet and Metformin XR interaction?
We rate it Minor. This interaction is generally not clinically significant, but it remains worth noting and discussing with your pharmacist.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Metformin XR and Atkins Diet?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.