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Guar Gum is permitted by the US FDA. Several countries restrict, warning-label, or have reviewed it for safety concerns. The US has more lenient additive rules than the EU, UK, Canada, and Japan, which is why this ingredient remains widely used here.
Generally recognized as safe. At high doses (e.g., dietary supplement doses of 10–20 g/day), guar gum can cause flatulence, bloating, and diarrhea. Historically, concentrated guar gum dietary supplements were associated with esophageal obstruction, prompting the FDA to ban such supplements in 1992. At typical food additive use levels, no significant safety concerns have been identified. EFSA confirmed its safety as a food additive in 2017.
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