The sweet science, in plain English.
Sweet proteins are an emerging class of intensely sweet proteins that give food and beverage teams a whole new way to design sweetness, at a tiny use rate. Here is how they work, minus the chemistry lecture.
What is a sweet protein?
A sweet protein is a protein that switches on the part of the tongue that senses sweetness. Unlike sugar, it is not a bulk carbohydrate, so it delivers sweetness without doing sugar’s full structural job in a recipe.
Because it is so intensely sweet, it works at milligram levels rather than grams. That is what makes it a precise tool for cutting sugar while keeping a clean, sugar-like taste.
Why so little does so much.
Sweet proteins sit at the far end of the sweetness scale. That single fact reshapes how sweetness is designed, dosed and costed.
Small protein, remarkable properties.
What matters when you formulate with it.
A plant-based sweetness.
The sweetness comes from nature. UnSugar is a plant-based sweet protein, the same kind some fruits make, so you get clean sweetness with zero added sugar.
Sweet Protein 101
The stuff every team asks us in the first ten minutes.
What is a sweet protein?
It is exactly what it sounds like: a protein that tastes sweet. It is a plant-based sweetness, the same kind some fruits make. Your taste buds read it as sweet, and it is about 500 to 2,000 times sweeter than sugar, so a tiny amount does the work.
How can a protein possibly taste sweet?
Sweetness happens on the tongue. We sense sweet through one receptor, the part of the tongue that senses sweetness, and anything shaped to fit it reads as sweet. Sugar fits it. So does this protein. Same signal, very different molecule.
Is it a sugar or a carbohydrate?
Neither. It is a protein. It is digested like other dietary proteins, and at the milligram levels used for sweetness it contributes no sugars and negligible calories. We make no glycemic, metabolic or health claims for UnSugar Sweet Protein.
Can it replace ALL the sugar?
Sugar does more than sweeten, so no honest ingredient swaps one-for-one. UnSugar Sweet Protein can help take 60 to 90% of the sugar out of suitable formulations while rounding out the off-notes associated with stevia and monk fruit. These figures are formulation targets our applications team works to, confirmed in your own product by bench testing.
Does it get along with stevia and monk fruit?
That is the whole idea. It slots into the sweetener system you already run and rounds out the bitterness and off-notes of stevia and monk fruit, so the blend tastes better than either part alone.
The science, one question at a time.
Read them in order for a grounding in the category, or jump to the comparison that matches the decision in front of you.
What are sweet proteins?
The complete B2B explainer: what they are, how they create sweetness, and how they are made.
Read →How UnSugar works
The formulation logic, step by step, and what actually determines the outcome in your recipe.
Read →Why a protein sweetener changes the label
The distinction that drives the sweetness, the label and the nutrition story.
Read →Sweet protein vs sugar
Different tools, different jobs. What sugar does that a sweet protein does not.
Read →Sweet protein vs stevia
Comparison or combination? Where a blended system beats picking a winner.
Read →Sweet protein vs monk fruit
Two high-intensity approaches, and how to choose between them or use both.
Read →How the options compare.
A planning-level view of where each tool fits. Every cell is the start of a bench conversation, not a substitute for one.
| Attribute | Sugar | Stevia / Monk fruit | UnSugar |
|---|---|---|---|
| Taste | Clean | Bitter or lingering | Clean, sugar-like |
| Contributes sugars or carbohydrate | Yes | No | No (a protein) |
| Used as | Bulk carbohydrate | High-intensity sweetener | High-intensity sweet protein |
| Sweetness vs sugar | 1x | 200 to 350x | 500 to 2,000x |
| Works with other sweeteners | Yes | Yes | Yes, and rounds out their off-notes |
| Replaces sugar's bulk | Yes | No | No |
| Cost-in-use | Low | Premium | Judged on a sugar-equivalent basis at the real use level; ask for a live quote |
Directional comparison for evaluation planning. These figures are formulation targets our applications team works to, confirmed in your own product by bench testing.
The problem this science answers.
Sweet proteins arrive exactly as the pressure to cut added sugar reaches every shelf, and as the taste ceiling of older sweeteners becomes the limiting factor for reformulation teams.
Shoppers keep asking for less sugar and keep buying on taste. Dietary guidance keeps tightening. And the high-intensity sweeteners most teams reach for first hit a wall, a bitter or lingering finish, before the sugar target is met. A clean, intense, protein-based sweetness that also helps mask those off-notes is a direct answer to that bind, which is why the category continues to grow.
The fastest way to judge the science? Your own bench.
Tell us what you’re building. We’ll send a sample kit, the sample bottle and sample powder, and help you plan the first bench trial.