Coffee on GLP-1: Why Puroast’s Low-Acid Roast Fits the Morning Ritual

If you are taking a GLP-1 medication, you already know that everyday meals and drinks can feel different. For a lot of people, that includes the morning cup of coffee — a ritual they are not eager to give up.

We want to be clear about two things at the start. First, Puroast is coffee, a food product, not a medicine. It does not treat obesity, diabetes, GERD, or any side effect of a GLP-1 medication. Whether coffee belongs in your plan is a question for your clinician. Second, we did not build this roast for GLP-1 users. They found us. People already on a medication, already adjusting how they eat and drink, went looking for a coffee with independently measured acidity — and they arrived at a cup we patented for a different reason: a smoother everyday roast, with published lab work and no additives.

That is the story we want to tell honestly. In spring 2026, FTI Consulting estimated that about 18% of U.S. adults are using a GLP-1. That is a large group of people who still want their coffee. This post is about what we can say, with sources, and what we will not say.

Why the cup can feel different

GLP-1 medications slow gastric emptying. That is part of how they work. It also means an ordinary high-acid coffee can sit in the stomach longer than it used to. Some people cut back on cups. Some switch to cold brew as a workaround. Some quit coffee altogether.

We are not going to claim that Puroast “works with” any brand-name medicine, or that it treats delayed emptying. We make a food. The useful question is simpler, and it is the same question we have been answering for years: is this coffee actually lower in acid, and can you see the measurements?

We collected the numbers, the survey context, and the product lineup on our GLP-1-friendly coffee page. What follows is the evidence behind that page.

What “low acid” actually means

“Low acid” is not a regulated term in coffee. It is a phrase that can appear on a bag without a lab behind it. We publish the data.

An independent pH study at North Carolina Agricultural and Technical State University (NC A&T) measured Puroast Dark French Roast at pH 5.80 — the least acidic of ten brands tested in that comparison. The nearest coffee came in at pH 5.38.

A separate line of work at the University of California, Davis, led by Dr. Takayuki Shibamoto, reported Puroast at pH 5.74, with roughly 70% less acid than many popular brands, and about 50% less diCQA, a chlorogenic-acid compound associated with the sharp finish people often blame on “strong” coffee.

The roast process that produces that cup is USPTO-patented. There are no additives — just coffee and heat. You can also read the broader background on our Why Low Acid page.

pH is a logarithmic scale, so those numbers are not a small step. They are why we would rather hand you a lab result than a slogan.

Antioxidants in a darker roast

There is a durable myth that a dark roast has been “burned away” nutritionally. Peer-reviewed work by Kamiyama and colleagues, published in the Journal of Agricultural and Food Chemistry in 2015, found that the breakdown products of chlorogenic acids in dark roasts are themselves potent antioxidants. That is roast chemistry, not a supplement claim, and it is one more reason we talk about this cup as a food with a published record.

What a physician survey found — and what it did not

Dr. Euler, M.D., conducted a physician-led clinical survey of 205 patients who switched to Puroast. This is patient-reported comfort after changing coffee. It is not a drug trial, and it is not a study of GLP-1 medications.

In that survey, about 90% of heartburn and reflux patients reported symptom relief after switching. About 93% of patients with interstitial cystitis reported relief. About 95% said they would repurchase, and about 96% said they would recommend the coffee to others.

Individual results vary. Those figures are not evidence that Puroast treats GERD, interstitial cystitis, or GLP-1 side effects. If you are on a medication, talk with your doctor about diet — including coffee — as part of your plan.

How to keep the ritual

The same low-acid process runs through the lineup. House Blend and Dark French Roast are the usual starting points, along with flavored coffees, decaf, K-Cups, cold brew, and espresso roast. Brew it the way you already brew. No special filter or additive is required.

If you want a standing delivery at home, Subscribe & Save is on the site. If you are thinking about the office — a pantry that has to work for wellness-minded teammates as well as everyone else — that is the work of our Business Office Program. We wrote separately about low-acid coffee for the workplace and about GLP-1 and workplace wellness.

The shortest path to the full evidence stack, and to the products, is the GLP-1-friendly Puroast page. If you would rather hear from us when we have brewing notes, research updates, or workplace options, you can sign up below. The form is the same newsletter we use across the site, and it is the most reliable way to stay in touch.

This article is for general information. Puroast is a coffee — a food product — not a medicine. It does not treat obesity, diabetes, GERD, interstitial cystitis, or GLP-1 side effects. It is not medical advice. Talk with your doctor about diet and coffee while you are on medication. Individual results vary.

James Sachs
Co-Founder & COO, Puroast Coffee

• Tags: GLP-1 gut health low acid coffee Puroast wellness