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Radish: Fiber Breakdown, Calories, and Daily Value

Crunchy cellulose and natural peppery compounds give radish its fresh bite. Here's its fiber profile and how it feels in your stomach.

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🌿 1 serving (~100 g / 3.5 oz)

Vegetables

🌿 Dietary Fiber

1 serving (~100 g / 3.5 oz) 1.6 g

Soluble

0.5 g (31%)

Insoluble

1.1 g (69%)

Per 100g: 1.6 g

🎯 Daily Norm

% of DV of 30g / day (1 serving)

🔥 Calories & Energy

1 serving (~100 g / 3.5 oz) 16.0 kcal

Per 100g: 16.0 kcal

Only 16 kcal and nearly 95% water - radish is light, bulky, and very low in calories.

⚡ Glycemic Index (GI)

1 serving (~100 g / 3.5 oz) 15 (Low)

Per 100g: 15

GI 15: barely moves the needle on blood sugar; the glycemic load for this serving is about 0.3.

💡 Popular Radish Varieties

Fiber stays fairly consistent across the main varieties

🌿 Classic variety: classic flavor and familiar fiber content.

🌱 Early / fresh harvest: more juicy and tender texture.

🌾 Firm variety: dense flesh and strong crunch; fiber is usually close to 1.6 g per 100 g.

✨ Choose firm, fresh radishes with tight skin - they taste better and crunch more pleasantly!

⚡ Quick Fiber Calculator (Radish)

One click, no registration

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🟢 You ate 1.6 g of fiber — that is 5% of your daily norm (30 g)!

How Fiber and Nutrients in Radish Support Daily Wellness

How radish supports weight management

Radish fills you up less through fiber and more through water, volume, and crunch: you chew it longer, and it has almost no calories.

Satiety Score

★ ★ ★ ★ ☆ 4.2 / 5.0

Moderate fullness from water, volume, and crunch

Caloric Density 16 kcal

Very low calorie density

Effects on digestion and the stomach

Radish is mildly acidic to near-neutral (about pH 5.5-6.0), but discomfort is more often linked to peppery compounds, which can stimulate stomach acid and irritate a sensitive stomach.

Stomach «Softness» Scale

Irritating 3 / 10 (Raw radish may irritate the stomach) Ideal

GI Stimulation Score 🌿 Gentle gut movement Fiber supports regularity, but natural mustard oils can be stimulating if your stomach is sensitive.

Microbiome, FODMAPs, and a glycemic shield

🩸 Low FODMAP
Radish does not contain fermentable short-chain sugars, so a 75–100 g portion rarely triggers bloating even in delicate stomachs.

🛡️ Peppery compounds
Isothiocyanates may help curb some unwanted gut microbes, but raw radish can still irritate the stomach lining.

🌿 Glycemic shield
Radish is low in carbs, and its fiber and dense structure help avoid a sharp blood-sugar spike.

Prebiotic value

Fiber 1.6 g Low FODMAP

Feeds friendly bacteria

Glycemic buffer 🛡️ Low GI and a gentle blood-sugar response No risk of sharp sugar drop

Culinary Physics

Raw vs Thermal Processing

How fiber properties and bioavailability change in Radish

🥗 Raw form

Fresh radish (maximum crunch and peppery compounds)

Whole structure: Dense plant cells take more chewing, which can help you eat more slowly.
Vitamins and antioxidants: Fresh radish keeps heat-sensitive vitamins intact, but its peppery compounds may irritate a sensitive stomach.
Volume without calories: Water and fiber create a light feeling of fullness, even though the total fiber is modest.

🔥 Thermal processing

After cooking

Softer cell walls: Cell walls soften, so your digestive system doesn't have to work as hard.
Less peppery bite: Sautéing or roasting in oil for 4-5 minutes can mellow the sharp peppery compounds.
Gentler on the stomach lining: Brief cooking softens the cellular matrix and tames the spicy warmth that some experience with raw radish.

Culinary Constructor & Alternatives

Best Food Combinations with Radish

Ready-made balanced combinations from the catalog

🥗 Fiber Plate Constructor

Power Lunch

Spring Radish, Cucumber & Herb Salad

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Radish Ingredient

+1.6 g

🥒

Cucumber Ingredient

+0.6 g

🌱

Green Onion Ingredient

+1.04 g

🟢 Total in plate: 3.2 g of fiber (11% of norm)

💡 Quick prep: Toss radishes with cucumber, green onion, and a little olive oil or yogurt-based dressing to make the salad more filling and gentler on the stomach.

🏆 Similar High-Fiber Options

Compare the amount of fiber in other products:

🥗 Beet 2.8 g / 100g 🌶️ Bell Pepper 2.5 g / 100g 🥦 Broccoli 2.6 g / 100g 🥕 Carrot 2.8 g / 100g