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Polymnia Sonchifolia Root Juice

Low concern

Yacón root juice is a low-glycemic source of fructooligosaccharides (FOS) and inulin and has shown modest prebiotic and metabolic benefits in small human studies. FOS at higher doses commonly causes gas, bloating, and osmotic diarrhea.

Found in

4 products

What it is

Juice from the root of yacón (Smallanthus sonchifolius, formerly Polymnia sonchifolia), a tuber rich in fructooligosaccharides (FOS) and inulin.

Natural sweetener and prebiotic syrup base.

Why it's flagged

GI side effects (gas, bloating) at higher intakes due to fermentable FOS

What regulators actually say

"Yacon syrup is a safe and useful neutraceutical for the treatment of human obesity-related disorders."

Genta S et al., Yacon syrup beneficial effects on obese pre-menopausal women, Clin Nutr 2009 — pubmed.ncbi.nlm.nih.gov

Regulatory status

United States — FDA

Sold as food/dietary supplement; no formal GRAS notice under that name

European Union — EFSA

Authorized as Novel Food not specifically listed; FOS broadly approved

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