Jicama is a nutritious, low-calorie root vegetable that earns its reputation as a healthy snack. A one-cup serving of raw jicama (about 130 grams) contains roughly 50 calories, nearly 6 grams of fiber, and over 40% of your daily vitamin C needs. It’s high in water, low in sugar, and delivers a satisfying crunch without the carbohydrate load of other root vegetables.
What’s in a Serving of Jicama
Jicama is about 85 to 90 percent water, which is part of what keeps its calorie count so low. That one-cup serving gives you a solid nutritional return for very few calories. You get around 6 grams of fiber (about 20% of daily needs), 12 grams of total carbohydrates, roughly 1 gram of protein, and almost no fat. It also provides potassium, magnesium, folate, and iron in modest amounts.
The vitamin C content stands out. A single cup delivers about 24 milligrams, which covers a significant portion of most adults’ daily requirement. Vitamin C supports immune function, helps your body absorb iron from plant foods, and plays a role in collagen production for skin and joint health.
A Standout Fiber for Gut Health
Not all fiber is created equal, and jicama’s fiber profile is one of its biggest selling points. Jicama is a rich source of inulin, a prebiotic fiber that your body can’t digest or absorb. Instead, inulin passes through to your large intestine, where it feeds beneficial bacteria in your gut. This makes jicama function more like a fertilizer for your microbiome than a simple roughage source.
A healthy population of gut bacteria is linked to better digestion, stronger immune responses, and even improved mood. Prebiotic-rich foods like jicama, garlic, onions, and asparagus all contribute to this ecosystem. The combination of inulin and high water content also helps keep things moving through your digestive tract, which can relieve or prevent constipation.
How It Compares to Potatoes
If you’re watching your carb intake, jicama is a useful swap for starchier root vegetables. A cup of raw jicama has about 12 grams of carbohydrates, while a cup of raw white potato has closer to 26 grams. Jicama also contains significantly more fiber per serving, which lowers its net carb count even further. That high fiber content helps stabilize blood sugar, lower cholesterol, and support digestion in ways that a plain white potato doesn’t match.
The texture difference matters too. Raw jicama has a crisp, apple-like crunch and a mildly sweet, slightly nutty flavor. It works as a substitute for water chestnuts in stir-fries, a replacement for chips when dipped in salsa, or a fresh addition to slaws and salads. Potatoes need cooking; jicama is perfectly good raw, which preserves its full vitamin C and inulin content.
Blood Sugar and Weight Management
Jicama’s combination of high water, high fiber, and low calories makes it a naturally filling food that doesn’t spike your blood sugar. The inulin fiber slows carbohydrate absorption, which means a gentler, more gradual rise in blood glucose compared to starchy snacks. For people managing diabetes or prediabetes, this is a meaningful advantage over crackers, chips, or bread-based snacks.
From a weight management perspective, jicama is one of the most calorie-efficient ways to feel full. The water content stretches your stomach, sending satiety signals to your brain, while the fiber slows digestion so you stay satisfied longer. You can eat a generous portion without putting a dent in your daily calorie budget, which makes it a practical snack for people trying to lose weight or simply eat more vegetables.
Heart Health Benefits
Jicama provides potassium, a mineral that helps regulate blood pressure by counterbalancing the effects of sodium. Most adults don’t get enough potassium, so adding potassium-rich foods like jicama to your diet can help close that gap. The soluble fiber in jicama also binds to cholesterol in the digestive tract, helping to remove it from the body before it enters the bloodstream.
The vitamin C in jicama functions as an antioxidant, protecting blood vessel walls from damage caused by free radicals. Over time, this kind of oxidative damage contributes to plaque buildup in arteries. While no single food prevents heart disease, jicama checks several boxes at once: low sodium, good potassium, cholesterol-lowering fiber, and antioxidant protection.
How to Eat It
Raw jicama is the simplest and most nutrient-dense option. Peel the papery brown skin with a knife (a vegetable peeler often struggles with the thick skin), then slice it into sticks, cubes, or thin rounds. In Mexico and Central America, it’s commonly served with lime juice, chili powder, and a pinch of salt. It also pairs well with citrus-based dressings, peanut dipping sauces, and fresh herbs like cilantro or mint.
You can cook jicama too. It holds up well in stir-fries, soups, and roasted vegetable medleys, maintaining some of its crunch even after heat exposure. Cooking will reduce the vitamin C content, since vitamin C breaks down at high temperatures, but the fiber and mineral content stays largely intact. If you’re eating jicama primarily for its prebiotic benefits, raw is better, since some inulin may degrade with prolonged cooking.
One Important Safety Note
Only the white flesh of the jicama tuber is safe to eat. The seeds, pods, stems, leaves, and skin of the jicama plant all contain rotenone, a naturally occurring compound that is toxic to humans and pets if ingested. This isn’t a concern with the jicama you buy at a grocery store, since only the tuber is sold, but it’s worth knowing if you grow jicama at home or encounter the whole plant. Always peel jicama before eating, and never let dogs or other pets chew on the skin or plant parts.