Erythritol, Explained: How FAMUS Gets Sweet With 0g Added Sugar

Energy & Ingredients February 24, 2026 · 1 min read · FAMUS Editorial Team
The quick answer

Erythritol is a sugar alcohol that occurs naturally in some fruits and is produced commercially by fermentation. It adds sweetness with very few calories. FAMUS pairs it with real juice for 0g added sugar and a fruit-forward taste.

Sweetness matters in a fruit-forward drink. FAMUS combines real juice with erythritol to get the flavor balance we wanted without added sugar.

There’s a third door.

What is erythritol?

Erythritol is a sugar alcohol — a family of sweet compounds that occur naturally in fruit. It’s present in grapes, melons, pears, and fermented foods like wine and soy sauce. Commercially it’s produced by fermenting glucose with a natural yeast, then purifying the result. Fermentation, not synthesis: the process has more in common with brewing than with manufacturing an artificial sweetener.

The numbers that matter

PropertySugarErythritol
Sweetness100%~70%
Calories per gram4~0.2
AftertasteNoneSlight cooling, no bitterness

The ingredient adds sweetness with very few calories and a slight cooling note. Real juice supplies the fruit character in the finished drink.

That slight cooling note? In most drinks it’s a quirk. In an icy tropical pour or a minty one, it’s practically a feature.

Why not “zero calories” then?

Here’s where FAMUS breaks from the diet-drink playbook. A FAMUS runs 45–60 calories — because it contains real grape, lime, and yuzu juice plus prebiotic fiber. That’s food, and food has calories.

The calorie count reflects the full recipe, including real juice. We chose flavor over a zero-calorie target while keeping added sugar at 0g.

The bottom line

Erythritol contributes sweetness; real juice brings the fruit flavor. Read the current bottle label, then find a retailer if you want to try both flavors.

Key takeaways
  • 01 Erythritol is a naturally occurring sugar alcohol, made by fermenting plant sugars — not a synthetic lab sweetener.
  • 02 It contributes very few calories compared with sugar.
  • 03 Sweetener preference and tolerance can vary from person to person.
  • 04 FAMUS pairs erythritol with real juice so sweetness comes with actual flavor, not just sweetness.

Frequently asked questions

Is erythritol artificial? +

No. It occurs naturally in fruits and fermented foods. Commercial erythritol is made by fermenting glucose with a natural yeast — a process closer to making wine than synthesizing a chemical like sucralose.

Why does FAMUS use erythritol? +

It adds sweetness without added sugar. FAMUS also uses real fruit juice, which contributes flavor and naturally occurring sugars.

Why does FAMUS have 45–60 calories if it uses a zero-calorie sweetener? +

Because FAMUS contains real grape, lime, and yuzu juice plus prebiotic fiber — actual food. The calories come from the juice, not added sugar. There's 0g of added sugar in every bottle.

Thirsty for the real thing?
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