Reb A

Generally Safe SweetenerNatural

Reb A is a naturally derived sweetener used in dietary supplements. Safety rating: Generally Safe. It is generally considered safe for most people at standard doses. Found in 6 supplements in the GoodSupp database. A purified steviol glycoside extracted from the stevia plant.

6 Products use this
Generally Safe Safety rating
Sweetener Category
Yes Natural origin

Safety Verdict: Generally Safe

Some individuals may experience a bitter aftertaste.

What is Reb A?

A purified steviol glycoside extracted from the stevia plant.

Common Names Reb A, Rebaudioside A
Type Sweetener
Origin Natural / Plant-derived
Safety Rating Generally Safe

Why is Reb A used in supplements?

It is used as a natural, low-calorie sweetener.

Role in supplements: Sweetener — adds sweetness to chewable or liquid supplements without adding significant calories.

Should you be concerned about Reb A?

Generally no. Reb A is considered safe for most people at typical supplement doses. Some individuals may want to be aware of minor sensitivities.

Some individuals may experience a bitter aftertaste.

Low risk. Generally safe for most people in supplement amounts.

Top-rated products containing Reb A

These 6 highest-scoring supplements in our database use Reb A.

Related Ingredients
Frequently Asked Questions
Is Reb A safe in supplements?

Reb A is rated generally safe for most people at amounts commonly found in supplements. While the overall safety profile is favorable, some individuals may experience minor sensitivities. Some individuals may experience a bitter aftertaste. In GoodSupp's database, 6 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Reb A and why is it in my supplement?

A purified steviol glycoside extracted from the stevia plant. As a sweetener, it improves the taste of chewable, liquid, or powder supplements without adding significant calories. It appears in 6 products in the GoodSupp database.

Is Reb A natural or synthetic?

Reb A is naturally derived, meaning it comes from natural sources such as plants, minerals, or animal products rather than being chemically synthesized. Natural-origin ingredients are preferred by many consumers, though it's important to note that 'natural' does not automatically mean 'safer' — safety depends on the specific substance, its purity, and the amount used. The safety rating assigned by GoodSupp is based on the ingredient's actual safety profile, not its origin.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.