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July 30, 2026Short & citedBlog
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Field Notes • Botany

Stevia

Stevia is a natural, no-calorie sweetener made from compounds in the leaves of the South American plant *Stevia rebaudiana*.

Updated July 30, 20261 min readCited sources

Stevia is a natural, no-calorie sweetener extracted from the leaves of the South American plant *Stevia rebaudiana*. It is about 200–400 times sweeter than table sugar and used widely as a sugar substitute.

What it is

Stevia comes from *Stevia rebaudiana*, a flowering plant in the Asteraceae family native to South America. The sweet taste comes from steviol glycosides found in the leaves.

Why it matters

As a no-calorie sweetener, stevia helps reduce added sugar and calorie intake. It is commonly used in beverages, tabletop sweeteners, and reduced-sugar foods because only a tiny amount is needed.

Safety and regulation

High-purity steviol glycosides are considered safe by major regulators such as the FDA when consumed within established limits. Whole-leaf stevia and crude extracts are treated differently in some regulatory frameworks.

In short

  • Derived from the leaves of *Stevia rebaudiana*, a South American plant.
  • Sweetness comes from steviol glycosides, extracted and purified.
  • Provides essentially no calories or carbohydrates.
  • High-purity extracts are considered safe for most people within intake limits.
Canadian angle

Stevia is relevant to Canadian readers as a widely used sugar substitute in foods and beverages, especially for people reducing sugar intake or managing calorie consumption. Canadian consumers commonly encounter stevia in tabletop sweeteners and packaged reduced-sugar products, although specific Canadian regulatory details are not included in the provided sources.

Quick questions

What is stevia?
Stevia is a sweetener made from compounds in the leaves of *Stevia rebaudiana*, a plant native to South America.
Is stevia safe?
High-purity steviol glycosides are generally considered safe for consumption within established intake limits.
Stevia vs sugar
Stevia is much sweeter than sugar but provides essentially no calories, while sugar provides calories and raises blood glucose more directly.

Sources

  1. WebMD
    Supports: Stevia is made from *Stevia rebaudiana* leaves; it is 200–400 times sweeter than sugar; high-purity steviol glycosides are considered safe; raw stevia is not FDA-approved.
  2. Cleveland Clinic
    Supports: Food industry uses stevia leaves to make zero-calorie, zero-carb sugar substitutes.
  3. IFIC
    Supports: Stevia sweeteners are safe to consume, are low- and no-calorie sweeteners, and do not raise blood glucose like sugar.
  4. Britannica
    Supports: *Stevia rebaudiana* is a flowering plant in the aster family grown for its sweet-tasting leaves.
  5. Medical News Today
    Supports: Stevia is no-calorie or very low calorie; high-purity stevia extract is considered safe; ADI information.
  6. Memorial Sloan Kettering Cancer Center
    Supports: Stevia is generally safe to use as a sweetener; side effects may include nausea and stomach fullness.
  7. PMC / review article
    Supports: High-purity stevia leaf extract provides zero calories and ADI discussion.