Gellan gum is not GRAS. According to FDA, gellan gum may be safely used as a direct food additive for human consumption as long as its use is in accordance with 21 CFR 172.665. Additionally, it is exempt from the threshold of regulation (21 CFR 170.39) for its use as a coating or sizing agent on food contact articles.
Reference:
Cinogel Biotech,Available at:http://www.cinogel.com/Home/QuestionDetail/7
