In 2008, the FDA approved some forms of purified stevia extracts and gave them "generally regarded as safe" (GRAS) status.

Despite this, the FDA has not approved the use of raw stevia, due to safety concerns. However, the FDA does consider high-purity extracts of steviol glycosides to be generally regarded as safe.

All of those listed below are generally regarded as safe by the Food and Drug Administration ... Sweeteners such as steviol ...

stevia leaf extract (steviol glycosides), tartaric acid, malic acid, colors added (beta carotene, fruit juice & vegetable juice), guar gum; natural orange-flavor; alcohol-, dye-, and gluten-free.