You've probably seen the glossy ads for NAD+ precursor gummies promising a convenient way to support cellular energy. They look simple enough. But if you've ever tried to actually make one, you know the truth: these little chews are a manufacturing nightmare wrapped in a fruit-flavored shell.
At KorNutra, we've spent years wrestling with these challenges. And I'm going to pull back the curtain on what most brands won't tell you: the hidden trade-offs that determine whether your gummy actually delivers on its promise.
Why Water Wrecks Your Active Ingredients
Here's the irony. Gummies require water to form their structure. You need it to dissolve sweeteners, hydrate gelatin or pectin, and create that fluid slurry that sets into a chewy shape. But NAD+ precursors like NMN or NR are hygroscopic; they actively pull moisture from the air. Put them in a hot, wet environment for too long, and you start losing potency before the gummy even cools.
Standard manufacturing lines run at 80-90°C for extended periods. At those temperatures, in a water-rich environment, the chemical bonds in these precursors begin to hydrolyze. We've seen batches lose 10-20% of their active content before reaching the drying room. That's a lot of money down the drain, and a lot of unhappy customers.
That's why at KorNutra, we never just dump everything into the pot at once. We use a post-cook addition method. The NAD+ precursor gets pre-dispersed in a carrier with low water activity, then added into the gummy mass once the temperature drops below 50°C and most of the free water is already bound by the gelling agents. The step requires high-shear emulsification and precise timing, and it protects the active's integrity without forcing us to overload the formula with preservatives.
The Taste Trap No One Talks About
Let's be honest: NAD+ precursors taste terrible. They have a sour, acidic note and a bitterness that lingers on your palate. The standard fix is to drown it in sugar and artificial flavors. But that creates a high glycemic load that completely contradicts the health-conscious image these products project.
And here's the dirty secret: many cheap taste-masking agents simply seal the bitterness inside a coating. Take one bite, and that coating breaks. The bitterness explodes. The consumer immediately loses trust in your brand.
At KorNutra, we use what we call dual-stage taste architecture:
- First, we build a clean sweetness base using organic isomalto-oligosaccharides and tapioca syrup. No competing flavors, no artificial aftertaste.
- Second, we pre-encapsulate the NAD+ precursor in a lipid-based matrix before adding it to the slurry. This masks the taste and creates a controlled release. The consumer gets a pleasant fruit-forward start, while the active is released further back in the mouth, minimizing bitterness.
This requires specialized spray-congealing equipment that most gummy lines simply don't have. But it makes a difference you can actually taste.
Why "Gummy Snap" Matters More Than You Think
Consumers expect a gummy to be firm but not hard. Chewy but not sticky. That texture comes from a precise ratio of pectin or gelatin to solids. But adding a crystalline NAD+ precursor changes the water activity and the gelling dynamics in ways most formulators don't anticipate.
If the gummy fails to set properly, the active can sink to the bottom of the trays during cooling. Suddenly, the first gummy on the line has half the dose, and the last one has double. That's a compliance disaster waiting to happen.
On the flip side, if the gummy is too stiff, the precursor particles don't stay suspended. You get a gritty mouthfeel, a visible sign of poor manufacturing that erodes trust before the consumer even checks the label.
Here's how we handle it at KorNutra:
- We treat every batch of NAD+ precursor as unique. Its particle size, crystalline form, and purity all affect how it interacts with the gelling system.
- Before scaling to full production, we run a mini-batch rheology test, measuring dynamic viscosity and gel strength with a texture analyzer.
- We adjust the formulation on the fly to ensure the final gummy has a consistent "snap," no grit, and a uniform active distribution within 2% of label claim.
Check the Precursor's Regulatory File First
NMN and NR are both NAD+ precursors, but they do not carry the same regulatory file, and that difference should shape which one goes into a chewy format. Nicotinamide riboside chloride holds a GRAS response letter from the U.S. Food and Drug Administration (FDA), numbered GRN 635, which clears it as a source of vitamin B3 in vitamin waters, protein shakes, nutrition bars, gum, chews, and powdered beverages. It also carries an accepted new dietary ingredient notification (NDIN 882). For a gummy brand, NR has the cleanest regulatory path in this category.
NMN's path has been rougher. In November 2022, FDA told companies that had submitted new dietary ingredient notifications that NMN was excluded from the dietary supplement definition under 21 U.S.C. section 321(ff)(3)(B)(ii), because the ingredient had been authorized for investigation as a new drug before it was marketed as a supplement. On September 29, 2025, FDA reversed that position, confirming that NMN is not excluded from the dietary supplement definition, and it repeated the conclusion in December 2025 letters to those notifiers. NMN is lawful to market now, but the reversal is recent, and its file carries more history than NR's.
The practical question for a brand is which precursor your supplier can document. If you are building around NMN, confirm the ingredient's NDI notification is in place and ask for the current FDA correspondence before you commit to a run. If you want the shortest path to a chewy product, NR chloride already holds GRAS clearance that names chews directly.
The Gummy Is a Delivery System
The market is flooded with NAD+ products. But a great gummy is a manufacturing achievement. It proves the facility understands the chemistry of the raw material, the physics of the process, and the psychology of the consumer.
At KorNutra, we engineer solutions for the most sensitive actives in the nutraceutical industry. If your next NAD+ product demands the stability of a capsule but the consumer appeal of a gummy, you need a partner who sees past the recipe and into the process.
Let's talk about your next challenge. At KorNutra, we build stability into the process.