Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
Yacon root is an Andean tuber containing high concentrations of fructooligosaccharides (FOS) that function as prebiotics to support digestive health. The FOS content promotes beneficial gut bacteria growth while providing minimal calories due to poor human digestibility.
Reported Benefits (Provisional)
Origin & History
Yacon is a root vegetable native to the Andean regions of South America. It is known for its sweet taste and is often used as a natural sweetener.
Research Narrative (Provisional)
Studies on Yacon suggest it may help regulate blood sugar and support digestive health due to its high fructooligosaccharide content.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
Per 100g fresh yacon root: Water 86–90g; Calories 33–54 kcal; Carbohydrates 9–13g (of which 6–9g are fructooligosaccharides/FOS, primarily 1-kestose, nystose, and fructofuranosyl-nystose); Free sugars (fructose, glucose, sucrose) 1.5–3g; Dietary fiber 0.3–0.5g; Protein 0.3–0.7g; Fat 0.1–0.3g. Key micronutrients: Potassium 190–295mg (≈6–8% DV); Calcium 7–23mg; Phosphorus 18–22mg; Magnesium 3.7–5mg; Iron 0.3–0.6mg; Zinc 0.2–0.3mg; Manganese 0.06–0.08mg. Vitamins: Vitamin C 3.7–13.1mg (≈6–15% DV); Vitamin A (as beta-carotene) trace amounts; B-vitamins (B1/thiamine 0.01–0.02mg, B2/riboflavin 0.1mg, niacin 0.3mg) in modest quantities. Bioactive compounds: Fructooligosaccharides (FOS) 6–9g/100g fresh weight (40–70% of dry weight), the principal prebiotic component — FOS are not hydrolyzed by human digestive enzymes, passing intact to the colon where they are fermented by Bifidobacterium and Lactobacillus spp., conferring high colonic bioavailability but zero glycemic impact; Chlorogenic acid 28–74mg/100g fresh weight (a major phenolic acid, bioavailability approximately 33% after intestinal absorption); Caffeic acid 1.5–8mg/100g; Ferulic acid 0.5–2mg/100g; Protocatechuic acid trace–1mg/100g; Tryptophan-derived compounds including L-tryptophan in small amounts. Total polyphenols (leaves and root skin): root flesh 45–150mg GAE/100g fresh weight, root peel up to 500mg GAE/100g; ORAC antioxidant value approximately 1,700–2,500 µmol TE/100g fresh root. The leaves (used as tea) contain substantially higher concentrations of sesquiterpene lactones (sonchifolin, uvedalin, enhydrin at 0.1–0.5% dry weight), chlorogenic acid (up to 2.4% dry weight), and flavonoids (luteolin, apigenin glycosides). Bioavailability notes: FOS bioavailability is functionally colonic — they resist gastric acid and pancreatic enzymes, arriving 95–99% intact in the large intestine; chlorogenic acid is partially hydrolyzed to caffeic acid by gut esterases, and absorption occurs in both the small intestine (≈33%) and colon (as microbial metabolites such as dihydrocaffeic acid and hippuric acid); potassium demonstrates high bioavailability (>90%); mineral bioavailability may be enhanced by FOS-mediated increases in colonic short-chain fatty acid production (especially butyrate, propionate, acetate), which lowers luminal pH and improves calcium and magnesium absorption by 20–30%.
Reported Mechanism (Provisional)
Yacon's fructooligosaccharides resist digestion in the small intestine and ferment in the colon, producing short-chain fatty acids that feed beneficial bacteria like Bifidobacterium and Lactobacillus. The FOS also stimulates GLP-1 hormone release, which slows gastric emptying and enhances satiety signaling. Additionally, yacon contains chlorogenic acid compounds that may inhibit α-glucosidase enzymes, potentially moderating postprandial glucose spikes.
Clinical Narrative (Provisional)
A 12-week randomized controlled trial in 55 obese women showed yacon syrup (0.29g FOS/kg bodyweight daily) reduced body weight by 15kg and waist circumference by 10cm compared to placebo. Smaller studies (n=16-40) demonstrated 20-40% increases in beneficial gut bacteria populations after 2-4 weeks of yacon consumption. However, most human trials are small-scale and short-term, with limited data on optimal dosing and long-term safety.
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