Formulators rarely choose between these three on sweetness alone. The decision usually turns on what a sweetener does besides taste sweet — whether it provides bulk, whether it browns, how it behaves under heat, and what it costs per unit of delivered sweetness.

The short version

  • Allulose — 70% as sweet as sugar, but it provides real bulk, browns in the Maillard reaction and freezes like sugar. The only one of the three that can replace sugar volumetrically.
  • Stevia — 200–350× sweeter than sugar. Provides no bulk. Reb A is economical but can carry a liquorice note at higher doses; Reb M is far cleaner and correspondingly dearer.
  • Monk fruit — 150–250× sweeter, with a rounder, more fruit-forward profile than stevia and no liquorice note. Costs more per unit of sweetness.

Why bulk decides most formulations

A high-intensity sweetener used at 0.05% leaves 99.95% of the formula to fill with something else. In a beverage that is trivial — water does the work. In a baked good, a gummy or a chewable tablet, it is the whole problem. Allulose earns its price here: it fills the space sugar vacated, so texture, mouthfeel and freezing point stay close to the original.

Where blends beat single sweeteners

Sweetness perception is not linear, and the off-notes of different sweeteners often cancel. A common, effective system is allulose for bulk plus a small monk fruit or Reb M charge to lift total sweetness to parity with sugar. The allulose masks the extract's lingering finish; the extract covers allulose's lower intensity. Neither achieves the result alone.

Cost in use, not cost per kilogram

Comparing price per kilogram across these three is meaningless. Stevia Reb A at many times the price of allulose is still cheaper per unit of sweetness, because you use a fraction as much. Calculate cost per unit of delivered sweetness in your actual formula before drawing conclusions.

Practical starting points

For a beverage, start with monk fruit or Reb M alone and add allulose only if mouthfeel feels thin. For a baked or frozen product, start with allulose as the bulk and titrate an extract upward to reach target sweetness. For a chewable, allulose plus monk fruit tends to beat either alone on both taste and texture.

We supply all three in bulk and blend them to a specified ratio. If you have a target sweetness and a reference product, send both — we will propose a starting ratio and ship a sample against it.