Vegetable Detail

Lotus Stem (Renkon)

Lotus Stem (Renkon)

FamilyNelumbonaceae
Importance
Lotus stem, often called lotus root, is the edible rhizome of Nelumbo nucifera, valued for its crisp texture, mild sweet flavor, distinctive hollow chambers, vitamin C, potassium, copper, manganese, fiber, and aquatic-plant phytochemicals. Per 100 g, raw lotus stem provides about 74 calories, 17.2 g carbohydrate, 4.9 g fiber, 2.6 g protein, and very little fat. Its carbohydrate occurs within a firm rhizome matrix that includes starch, soluble fiber, insoluble fiber, minerals, amino acids, organic acids, and polyphenolic compounds. When sliced, the round chambers create the familiar wheel-like pattern used in soups, stir-fries, stews, salads, and steamed vegetable dishes.

Lotus stem supports everyday nourishment through fiber, vitamin C, potassium, copper, manganese, phosphorus, and plant protein. Vitamin C contributes to collagen formation, antioxidant recycling, immune barrier function, and connective tissue maintenance. Fiber supports digestive movement, stool bulk, microbial fermentation, and short-chain fatty acid production. Potassium supports fluid balance, nerve signaling, and muscle contraction. Copper supports iron handling, connective tissue enzyme systems, and redox balance. Manganese supports enzyme systems involved in carbohydrate metabolism, connective tissue formation, and antioxidant defense. Phosphorus participates in ATP-related energy metabolism and bone mineral structure.

For cancer and ailment-support nutrition, lotus stem is relevant because Nelumbo nucifera rhizomes contain catechin-related compounds, gallic acid derivatives, chlorogenic acid derivatives, caffeic acid derivatives, flavonoids, tannins, polysaccharides, resistant starch, fiber, vitamin C, potassium, copper, and manganese. These compounds connect to Nrf2-related antioxidant response, NF-kB inflammatory signaling balance, AMPK-linked metabolic regulation, insulin-related carbohydrate handling, endothelial function, phase II detoxification enzyme signaling, apoptosis-related cell signaling, gut fermentation pathways, short-chain fatty acid production, and cellular repair pathways. Lotus stem contributes crisp rhizome fiber, vitamin C, minerals, resistant starch, polyphenols, and aquatic-plant phytochemicals tied to digestive function, metabolic regulation, vascular support, inflammatory signaling balance, antioxidant defense, and normal cellular maintenance.

Lotus stem pairs well with mushrooms, carrots, cabbage, bok choy, onions, garlic, ginger, lentils, beans, chickpeas, brown rice, quinoa, millet, cilantro, parsley, sesame seeds, pumpkin seeds, walnuts, and citrus. Its strongest nutritional identity is the combination of crisp hollow rhizome structure, vitamin C, potassium, copper, manganese, fiber, resistant starch, phenolic acids, flavonoids, and Nelumbo-family phytochemicals connected to digestive, metabolic, vascular, antioxidant, inflammatory, fermentation, and cellular support pathways.
Region FoundLotus stem Nelumbo nucifera is native to Asia and northern Australia and is now cultivated in aquatic farming systems across China, India, Japan, Korea, Vietnam, Thailand, Indonesia, and other warm temperate or subtropical regions. It grows in shallow ponds, wetlands, and flooded fields with warm temperatures, nutrient-rich mud, full sun, and steady water levels.
Helps Fight These Cancers: Colon, Stomach, Liver
Helps Fight These Ailments: Contains Polyphenols That Protect Against Oxidative Stress And Inflammation, Fiber Promotes Bowel Regularity And Detoxification.

All values per 100g
Nutrition Facts
Calories (kcal)74
Protein (g)2.6
Carbohydrates (g)17.2
Fiber (g)4.9
Sugars (g)0.5
Total Fat (g)0.1
Saturated Fat (g)0
Vitamins
Vitamin A (µg RAE)0
Vitamin C (mg)44
Vitamin D (µg)0
Vitamin E (mg)0.1
Vitamin K (µg)0.3
Vitamin B1 / Thiamin (mg)0.16
Vitamin B2 / Riboflavin (mg)0.06
Vitamin B3 / Niacin (mg)0.4
Vitamin B5 / Pantothenic Acid (mg)0.35
Vitamin B6 (mg)0.258
Vitamin B7 / Biotin (µg)0
Folate B9 (µg)13
Vitamin B12 (µg)0
Vitamin Detail Pages
Minerals
Calcium (mg)45
Iron (mg)1.16
Magnesium (mg)23
Phosphorus (mg)100
Potassium (mg)363
Sodium (mg)40
Zinc (mg)0.23
Copper (mg)0.22
Manganese (mg)0.152
Selenium (µg)0.6
Iodine (µg)0
Mineral Detail Pages
Amino Acids
Alanine (mg)94 mg
Arginine (mg)91 mg
Asparagine (mg)0 mg
Aspartic Acid (mg)311 mg
Cysteine (mg)22 mg
Glutamic Acid (mg)362 mg
Glutamine (mg)0 mg
Glycine (mg)84 mg
Histidine (mg)53 mg
Isoleucine (mg)54 mg
Leucine (mg)80 mg
Lysine (mg)89 mg
Methionine (mg)21 mg
Phenylalanine (mg)61 mg
Proline (mg)136 mg
Serine (mg)80 mg
Threonine (mg)62 mg
Tryptophan (mg)19 mg
Tyrosine (mg)33 mg
Valine (mg)72 mg
Amino Acid Detail Pages
Phytochemicals
Catechin-related compounds, gallic acid derivatives, chlorogenic acid derivatives, caffeic acid derivatives, ferulic acid derivatives, p-coumaric acid derivatives, flavonoids, tannins, polysaccharides, resistant starch, soluble fiber, insoluble fiber, vitamin C, potassium, copper, manganese, phosphorus, magnesium, iron, zinc, and Nelumbo nucifera rhizome bioactive compounds. Research references: Mukherjee PK, Mukherjee D, Maji AK, Rai S, Heinrich M. The sacred lotus Nelumbo nucifera: phytochemical and therapeutic profile. Journal of Pharmacy and Pharmacology. 2009. Paudel KR, Panth N. Phytochemical profile and biological activity of Nelumbo nucifera. Evidence-Based Complementary and Alternative Medicine. 2015. Hu M, Skibsted LH. Antioxidative capacity of rhizome extract and rhizome knot extract of edible lotus Nelumbo nucifera. Food Chemistry. 2002.
Research & Notes
Research Notes:
USDA FDC and Indian Food Composition Table per 100 g cooked lotus stem; amino acids derived from aquatic root vegetables dataset. Biotin, iodine, asparagine, glutamine not reported → NULL.
Notes:
Cooked 100 g baseline (boiled).
Created: 2025-10-23 18:03:49
Last Updated: 2026-06-04 08:13:13