"Live or pasteurized?" is the wrong first question in an Akkermansia project. The right first question is: what are you making? The product format — its processing, its water activity, its shelf-life conditions, its regulatory lane — usually determines the form before any discussion of mechanism or marketing begins.
This article works through the four formats B2B teams most often bring to us — capsules and tablets, gummies, functional food and beverage, and pet products — and for each one: which form of AKK PROBIO (Akkermansia muciniphila CGMCC No.20955) is the natural starting point, and why. (For the head-to-head science of live vs. pasteurized, see our companion article; here we stay at the format level.)
Quick Answer
Capsules and tablets are the one format where either form works: choose live for viable-cell positioning, pasteurized for maximum stability and postbiotic positioning. Gummies point to pasteurized — gummy processing involves heat and moisture that viable cells tolerate poorly. Functional food and beverage point firmly to pasteurized: it survives processing and ambient storage, and AKK PROBIO's self-affirmed GRAS covers both forms for food use. Pet products start with pasteurized for the same processing and stability reasons, subject to product-specific regulatory review. The format drives the form; the form then determines which regulatory lane (GRAS food or NDI supplement) and which dosage unit (AFU or TFU) your documentation must use.
The Four Constraints That Decide the Form
Before the format-by-format detail, four physical and regulatory constraints do most of the deciding:
- Processing exposure. Heat, moisture, shear, and pH are hostile to viable obligate anaerobes. The more processing a format involves, the stronger the case for pasteurized.
- Shelf-life conditions. A viable-cell product must hold its count through the supply chain. Pasteurized material is inherently ambient-stable; live material demands tighter control.
- Regulatory lane by category. AKK PROBIO's self-affirmed GRAS under 21 CFR §170.30 covers both live and pasteurized forms for conventional food; its completed FDA NDI notification #1468 covers the pasteurized form only, for dietary supplements (announcement). The lane available to your format constrains the form.
- Dosage unit discipline. GRAS food use is quantified in AFU; NDI supplement use in TFU. The form you land on determines which unit belongs in your spec sheet — the two are not interchangeable (see our AFU vs. TFU guide).
Capsules and Tablets: The One Format Where Either Form Works
Capsules and dry tablets are the gentlest environment in the supplement world: low water activity, no thermal processing, minimal oxygen exposure in a well-designed package. That makes this the one format where the choice is genuinely strategic rather than forced.
Choose live when your positioning centers on a viable, colonizing probiotic and your channel supports the stability controls that come with it. Choose pasteurized when you want postbiotic positioning, the simplest possible supply chain, or a multi-ingredient formula whose other actives or processes would stress viable cells. Both forms of the strain have human-trial context — AKK PROBIO's 130-subject, 8-week RCT tested live and pasteurized side by side (DOI: 10.26599/FSHW.2025.9250659) — so this is one decision where you are not trading away the evidence base either way.
A note on lane: a capsule sold as a dietary supplement currently rests on NDI #1468 — which means pasteurized form for the supplement lane. The live form's regulatory basis is GRAS for conventional food. If your capsule concept requires the live form, that is a regulatory conversation to have with our team early, not a formulation detail to resolve later.
Gummies: Pasteurized, and Be Skeptical of Anyone Who Says Otherwise
Gummies are the format buyers most often ask about, and the answer is the least ambiguous. Gummy manufacturing deposits a hot, high-moisture mass, and the finished product sits at a water activity far above anything a viable obligate anaerobe is built to survive. Even when a viable count can be achieved at manufacture, holding it through shelf life in a moist matrix is a different and harder problem.
Pasteurized AKK PROBIO sidesteps the problem entirely: with no viability to preserve, heat deposition and ambient storage stop being formulation risks, and the label claim rests on a total-cell (TFU) quantification that does not decay the way a viable count does. For a gummy concept, pasteurized is not the compromise — it is the format-appropriate choice.
Functional Food and Beverage: Pasteurized Is the Starting Point
Food and beverage applications add every stress gummies have, plus more: thermal steps, dissolved oxygen, acidic systems, long ambient shelf life, and in beverages a fully hydrated environment. This is why our applications guidance describes pasteurized AKK PROBIO as the better starting point for processing tolerance and storage in food and beverage formats.
The regulatory lane here is favorable: conventional foods run on the GRAS pathway, and AKK PROBIO's self-affirmed GRAS covers both forms in food — with use levels defined in AFU (≤ 7.0×10¹⁰ AFU per serving; ≤ 1.3×10¹² AFU per day for a 70 kg adult). The pasteurized form's efficacy context in food-relevant mechanisms is also the best-documented part of the strain's preclinical portfolio (e.g., the SCFA–GLP-1 axis work in animal models; Preclinical; animal study, PMID: 41123834).
One caution that applies to beverages specifically: "ambient-stable" describes the ingredient, not a guarantee about every finished system. Matrix interactions, pH, and package oxygen transmission still need product-level validation — that is what pilot runs are for.
Pet Products: Pasteurized First, With a Documentation Note
Companion-animal products share the processing logic of human food — extrusion, baking, and retort are all hostile to viable cells — so pasteurized is again the natural starting point, and the strain's published safety record (including toxicology supporting a NOAEL far above formulated use levels) is part of why it draws interest for gut-health concepts in pet formats.
The documentation note: pet products are not covered by human food/supplement pathways. Our applications guidance is deliberately cautious here — AKK PROBIO is a documented, safety-evaluated ingredient route for companion-animal concepts, pending product-specific review. If a pet format is your target, involve your regulatory advisor and our technical team at concept stage, not after the formula is locked.
The Format-to-Form Map
| Your format | Starting form | Why | Lane and unit |
|---|---|---|---|
| Capsule / tablet (supplement) | Either; pasteurized for the NDI lane | Low-stress format; choice is strategic | NDI #1468 (pasteurized), TFU; live via GRAS-food discussion |
| Gummy | Pasteurized | Heat deposition + moist matrix defeat viable cells | NDI #1468, TFU |
| Functional food & beverage | Pasteurized | Thermal steps, ambient shelf life, hydrated systems | GRAS food (both forms), AFU |
| Pet (extruded/baked) | Pasteurized, pending review | Extrusion/retort stress; separate regulatory track | Product-specific review |
Start With the Format, End With the Documentation
The shortest path to the right decision is to tell us the format first. The sample request flow asks for your application and form of interest so the technical team can route the right material, the right specification (AFU for GRAS food, TFU for NDI supplement), and the right regulatory package on the first pass. Request a sample, or review the public record on our Applications and Regulatory & Safety pages.