THORNE: price per serving
This site tracks 18 listings from THORNE across 7 categories: Creatine, GLP-1 branded support, Protein, Multivitamins, Fiber & regularity, Nausea & digestive comfort, Electrolytes & hydration. Every price below is normalized to cost per serving so packages of different sizes can be compared directly.
THORNE appears in four of the categories this site tracks: berberine capsules under GLP-1 branded support, creatine monohydrate powder, whey protein isolate, and a daily multivitamin. That spread means it shows up in several different per-serving comparisons rather than just one.
Berberine is the ingredient in that list with the most contested evidence. Our evidence review covers what the trials actually found, including the quality caveats the researchers themselves raise, and is worth reading before deciding whether the ingredient belongs in your routine at all.
Prices refreshed as of Sep 16, 2026, 12:37 AM ET.
Cheaper alternatives to THORNE
For each category THORNE competes in, this is the lowest current price per serving from a different brand. It is a cost comparison only. This site does not test products or judge whether two products are interchangeable.
Related comparisons and guides
These links stay available even when current prices are temporarily unavailable.
- Compare creatine products
- Compare glp-1 branded support products
- Compare protein products
- Compare multivitamins products
- Compare fiber & regularity products
- Compare nausea & digestive comfort products
- Compare electrolytes & hydration products
- Do GLP-1 Support Supplements Work? An Evidence Review
- Protein While Taking a GLP-1 Medication: A Practical Buying Guide
What this page does not tell you
- Nothing about product quality. Price per serving is a cost normalization. This site does not test products, assess ingredient quality, or verify manufacturing claims.
- Nothing about whether a supplement is appropriate for you. That is a conversation for your prescriber, particularly if you take other medications.
- Nothing about products sold outside Amazon. The catalog covers Amazon listings only, so a brand may sell products that never appear here.
How these numbers are calculated is documented in full on the methodology page.
Frequently asked questions
- What does the evidence say about THORNE berberine?
- Evidence questions are about the ingredient, not the brand. A meta-analysis of 37 trials found berberine lowered HbA1c by roughly 0.6 percentage points in people with type 2 diabetes, on mostly moderate-quality evidence, and none of that work was done in people taking GLP-1 medications. Our evidence review guide covers this in detail.
- Does this site verify THORNE quality or testing claims?
- No. This site compares cost per serving and nothing else. It does not test products, review certificates of analysis, or verify any manufacturing or purity claim from any brand.