Jicama
Jicama is a starchy root vegetable native to Mexico, high in fiber and vitamin C, with a low glycemic index partly due to its inulin content. It is commonly eaten raw as a vegetable snack or added to salads and slaws.
Also known as: Mexican turnip, yam bean, Pachyrhizus erosus, jícama
Scientific & Editorial Standard: This information is synthesized from peer-reviewed databases (such as PubMed, NIH, NHS, and Mayo Clinic) and validated using multi-model cross-referencing by the Plateify Editorial Team. It is intended for educational purposes and is not medical advice. If you suspect food sensitivities, consult a healthcare provider.
Jicama (Pachyrhizus erosus), also called Mexican turnip or yam bean, is a legume root vegetable cultivated primarily in Mexico, Southeast Asia, and Central America. It has a thin brown skin and crisp, white flesh with a mild, slightly sweet flavor. Jicama is consumed raw in salads, slaws, and as a fresh vegetable snack, and occasionally cooked in stir-fries and soups. In some regions it is sold in Latin and Asian markets as a fresh root vegetable.
One cup (130 g) of raw jicama contains approximately 49 calories, 11 g carbohydrates, 6.4 g fiber, 0.9 g protein, and negligible fat. Jicama is notably high in dietary fiber, much of which is inulin — a type of soluble fructan that the human body cannot digest in the small intestine. Inulin passes into the colon largely intact, where it is fermented by colonic bacteria. This fermentation can produce gas and bloating in sensitive individuals, particularly those with functional gastrointestinal disorders or fructan sensitivity.
Fiber and Digestive Effects
Jicama is a significant source of inulin fiber, which has a low glycemic impact and may support satiety. In the colon, inulin fermentation produces short-chain fatty acids, particularly butyrate, which provides fuel for colonocytes. However, rapid or excessive consumption of inulin-rich foods can increase gas production and abdominal discomfort in people unaccustomed to high-fiber intake or those with small intestinal bacterial overgrowth (SIBO), irritable bowel syndrome, or fructan intolerance.
Portion and Tolerance Guidance
Jicama is safe for most people when consumed in typical serving sizes (raw or cooked). A standard serving is 100–150 g. People with IBS, fructan sensitivity (or suspected non-celiac wheat sensitivity linked to fructan), or SIBO should introduce jicama slowly and monitor symptoms. Those on potassium-restricted diets should note that jicama provides moderate potassium (approximately 195 mg per cup). Jicama is not a common allergen, though legume-sensitive individuals should be aware of its legume origin, although allergic reactions are rare.
Frequently Asked Questions
Is jicama high in FODMAPs?
Jicama contains fructans (a type of FODMAP). According to Monash University research, jicama is rated low-FODMAP at a serving of 75 g, with larger portions potentially exceeding low-FODMAP thresholds. People following a low-FODMAP diet for IBS should limit jicama to no more than 75 g per meal.
What are the main health effects of eating jicama?
Jicama is high in fiber and vitamin C, supports digestive health through inulin fermentation, and has a low glycemic index. Its primary physiological effect is providing prebiotic fiber that feeds beneficial gut bacteria, though this can cause gas or bloating in sensitive individuals.
Can jicama cause digestive symptoms?
Yes. In people unaccustomed to high-fiber foods, or those with IBS, SIBO, or fructan sensitivity, jicama may cause bloating, gas, and abdominal discomfort due to inulin fermentation. Starting with small portions (around 75 g) and increasing gradually can help minimize symptoms.
Is jicama safe for people with legume allergies?
Jicama is a legume root, but true allergic reactions to jicama are rare and do not automatically occur in people with other legume allergies. If you have a documented legume allergy, consult a healthcare provider before consuming jicama for the first time.
Sources
- Fiber — Harvard T.H. Chan School of Public Health – The Nutrition Source
- Irritable Bowel Syndrome (IBS) — Mayo Clinic
- FODMAP and IBS — Monash University
- FoodData Central: Jicama (yambean, raw) — USDA
Educational content: This page is for general informational purposes only. Individual responses to foods vary widely. If you suspect a food allergy or sensitivity, consult a licensed dietitian, allergist, or physician before making dietary changes. Full disclaimer
Some content on this site is AI-assisted. While we strive for accuracy, information may not reflect the latest research. Always verify health information with a professional.
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