How much potassium is in yautia per 100 grams?

Yautia corms contain approximately 530 to 1085 mg of potassium per 100 grams depending on variety and growing conditions, making it a notably rich dietary potassium source. For context, the daily adequate intake for potassium is 2,600–3,400 mg for adults, so a 100g serving can contribute 15–30% of that target.

Is yautia safe to eat raw?

Raw yautia is not recommended because its corms and leaves contain calcium oxalate crystals that cause intense oral burning, tingling, and potential gastrointestinal irritation upon ingestion. Boiling, roasting, or frying effectively breaks down these crystals, rendering the vegetable safe and palatable for consumption.

What antioxidants are found in yautia leaves?

Yautia leaves contain polyphenols measured at approximately 13 mg gallic acid equivalents per gram (GAE/g) and flavonols at around 7.7 mg quercetin equivalents per gram (QE/g), based on in vitro compositional analyses. These compounds, including quercetin-type flavonoids, act as free-radical scavengers and may inhibit lipid oxidation, though human bioavailability studies are lacking.

Can yautia help with blood sugar control?

Yautia's dietary fiber content may slow intestinal glucose absorption by reducing enzymatic activity of alpha-amylase and alpha-glucosidase, which could moderate postprandial blood sugar spikes. However, this effect is inferred from its fiber composition and related in vitro studies on Xanthosoma species; no human clinical trials have directly measured glycemic outcomes with yautia consumption.

Is yautia the same as taro?

Yautia (Xanthosoma sagittifolium) and taro (Colocasia esculenta) are distinct species from the same Araceae family and are often confused due to similar appearance and culinary use. Key differences include leaf shape (yautia leaves attach to the stalk away from the leaf margin), flavor profile, and slightly different nutritional compositions, though both contain calcium oxalate and require cooking before consumption.

What is the difference between yautia leaves and yautia root in terms of nutritional content?

Yautia leaves contain significantly higher concentrations of polyphenols (13 mg GAE/g) and flavonols (7.7 mg QE/g) compared to the root, making them a superior source of antioxidants. The leaves also provide approximately 1.99% dietary fiber, while the root is primarily valued for its carbohydrate and potassium content (530-1085.70 mg/100g). Both parts are nutrient-dense, but they serve different nutritional purposes—leaves for antioxidant support and roots for mineral and energy provision.

Can children safely consume yautia as part of their regular diet?

Yautia is generally safe for children when properly cooked, as cooking breaks down calcium oxalate compounds that can interfere with mineral absorption. The vegetable's high potassium content and dietary fiber make it nutritionally appropriate for pediatric diets when introduced as part of a varied diet. However, like all new foods, yautia should be introduced gradually in age-appropriate portions, and raw yautia should be avoided for young children.

How does the fiber content in yautia leaves compare to other leafy green vegetables?

Yautia leaves contain 1.99% dietary fiber, positioning them as a moderate fiber source among leafy greens—lower than some brassicas like kale but comparable to spinach when fresh. The fiber in yautia leaves is combined with polyphenols and flavonols, creating a synergistic effect for digestive and overall health support. Including yautia leaves regularly can contribute meaningfully to daily fiber intake when part of a diverse vegetable consumption pattern.

Yautia (Xanthosoma sagittifolium)

Yautia (Xanthosoma sagittifolium) is a tropical root vegetable rich in potassium (530–1085 mg/100g), dietary fiber, and polyphenolic compounds including flavonols measured at 7.7 mg quercetin equivalents per gram in leaf extracts. Its antioxidant and cardiovascular effects are primarily attributed to these bioactives acting through free-radical scavenging and electrolyte-mediated vascular regulation.

Category: Other Evidence: 2/10 Tier: Emerging

Yautia (Xanthosoma sagittifolium) — Hermetica Encyclopedia

Origin & History

Yautia (Xanthosoma sagittifolium), also known as tannia or malanga, is a tropical flowering plant from the Araceae family that produces edible starchy corms (underground stem tubers). Native to tropical regions, it is cultivated for both its nutrient-rich tubers and leaves, which are typically consumed fresh, dried, or processed into powder for nutritional supplementation.

Historical & Cultural Context

The provided research does not include information about traditional medicine systems, historical applications, or ethnobotanical documentation of yautia use. The available sources focus exclusively on modern nutritional analysis rather than traditional or cultural context.

Health Benefits

• High potassium content (530-1085.70 mg/100g) may support cardiovascular health - evidence from nutritional analysis only
• Rich in polyphenols and flavonols (13 mg GAE/g and 7.7 mg QE/g in leaves) providing antioxidant properties - based on compositional data
• Contains significant dietary fiber (1.99% in leaves) potentially supporting digestive health - nutritional data only
• May have protective effects against cardiovascular disease and bowel cancer through bile salt-binding capacity - preliminary evidence from one rat study (Jackix et al., 2013)
• Provides essential minerals including magnesium (27 mg/100g), phosphorus (53 mg/100g), and iron (0.4 mg/100g) - based on compositional analysis

How It Works

Yautia's high potassium content (530–1085 mg/100g) supports cardiovascular function by activating Na⁺/K⁺-ATPase pumps, promoting vasodilation and helping counteract sodium-induced hypertension. Its leaf-derived polyphenols and flavonols (13 mg GAE/g and 7.7 mg QE/g) neutralize reactive oxygen species by donating hydrogen atoms to free radicals, inhibiting lipid peroxidation and potentially modulating NF-κB inflammatory signaling. Dietary fiber in the corm slows glucose absorption by reducing amylase and glucosidase activity in the gut, contributing to glycemic modulation.

Scientific Research

The available research is limited to nutritional composition studies and one animal feeding study by Jackix et al. (2013) in rats, which suggested protective cardiovascular and anti-cancer effects from lyophilized yautia leaves. No human clinical trials, randomized controlled trials, or meta-analyses with PubMed PMIDs were found in the provided research dossier.

Clinical Summary

Evidence for yautia's health effects is derived almost entirely from in vitro compositional analyses and nutritional profiling studies rather than controlled human trials. Phytochemical analyses confirm substantial polyphenol and flavonol concentrations in leaf extracts, and nutritional databases document its potassium and fiber content, but no randomized controlled trials have quantified clinical outcomes in human subjects. Animal or cell-based studies on related Xanthosoma species suggest antioxidant and antidiabetic potential, though these findings cannot yet be directly extrapolated to humans. Overall, the evidence base is preliminary, and yautia's health benefits are currently supported by compositional data rather than clinical proof.

Nutritional Profile

Yautia (Xanthosoma sagittifolium) is a starchy tropical root vegetable with a distinct nutritional profile across its edible parts (corms, cormels, and leaves). Macronutrients (per 100g raw corm): carbohydrates 20-26g (primarily starch), protein 1.5-2.8g, fat 0.2-0.4g, dietary fiber 1.5-2.5g. The leaves contain higher protein (~3.5g/100g) and fiber (~1.99%). Moisture content is approximately 70-75% in corms. Calories range from 95-115 kcal/100g. Key minerals: potassium is notably high at 530-1085 mg/100g (varying by plant part and preparation), calcium 20-40mg/100g, phosphorus 60-80mg/100g, magnesium 25-35mg/100g, iron 0.8-1.5mg/100g, zinc 0.3-0.5mg/100g. Vitamins: vitamin C approximately 8-12mg/100g in raw corms, B-complex vitamins present including thiamine (~0.1mg/100g), riboflavin (~0.03mg/100g), and niacin (~0.5mg/100g); leaves contain higher folate concentrations (~40-60mcg/100g). Bioactive compounds: leaves are particularly rich in polyphenols (13mg GAE/g dry weight) and flavonols including quercetin equivalents (7.7mg QE/g dry weight); corms contain moderate phenolic content. Starch structure consists of small granules (3-5 micrometers) with high digestibility, though resistant starch fraction aids glycemic moderation. Bioavailability note: oxalate content (calcium oxalate crystals) in raw yautia can inhibit calcium and iron absorption and cause oral irritation; cooking (boiling, roasting) significantly reduces oxalates by 50-70%, improving mineral bioavailability. The small starch granule size enhances digestibility compared to other root crops.

Preparation & Dosage

No clinically studied dosage ranges or standardized extract protocols have been established in the available research. The sources only document nutritional composition of whole foods without therapeutic dosing parameters. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Vitamin C, digestive enzymes, probiotics, mineral supplements (taken separately), cooking/fermentation methods

Safety & Interactions

Raw yautia corms and leaves contain calcium oxalate crystals, which can cause oral irritation, tingling, and gastrointestinal discomfort if consumed uncooked; thorough cooking effectively neutralizes these antinutrients. Individuals with a history of calcium oxalate kidney stones should consume yautia cautiously, as dietary oxalate may contribute to stone formation. Due to its high potassium content, those taking potassium-sparing diuretics (e.g., spironolactone), ACE inhibitors, or with chronic kidney disease should monitor intake to avoid hyperkalemia. Safety data during pregnancy and lactation is insufficient; consumption as a whole food is generally considered safe, but concentrated extracts or supplements have not been evaluated in pregnant populations.