Are Fennel Seeds Keto?

Seeds
Fennel Seeds sticker illustration
KETO VERDICTYES

Fennel seeds are moderate for keto with ~12.5g net carbs per 100g (about 0.6g per teaspoon) but excellent when used as a spice in teaspoon amounts. They support digestion and bring a licorice-like note to distinctive keto dishes.

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YOUR PORTION

How much are you having?

Per 100 g (as listed by source). USDA FoodData Central.

Scales this reference to your portion, with no extra deductions. Calculation and units.

12.5gnet carbs in your portion

Total carbs
52.3g
Fiber
39.8g
Protein
16g
Fat
15g
Calories
345
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The 100 g reference amount provides 12.5g net carbs and can fit common keto portions.

  • Net carbs (100 g)12.5g
  • Protein (100 g)16g
  • Fat (100 g)15g
  • Keto verdictKeto-friendly

NUTRITION FACTS

Per 100 g (as listed by source)

Net Carbs
12.5g
Total Carbs
52.3g
Fiber
39.8g
Protein
16g
Fat
15g
Calories
345

Source: USDA FoodData Central reference record

Source fit: generic reference; variety, brand, or preparation may differ

Net-carb calculation: total carbohydrate - fiber

This USDA record is used as a generic nutrition reference; variety, brand, or preparation may differ.

Nutrition record reviewed 2026-07-09. Maintained by KetoLens Team.

WHY IT'S KETO-FRIENDLY

  • Moderate net carbs (~12.5g/100g) but tiny spice portions (½–1 tsp) keep impact very low
  • Exceptional fiber (35.6g/100g) supports digestion and satiety
  • Powerful flavor means only small amounts are needed per serving
  • Use primarily as seasoning, not a bulk food item
  • Lower calorie density than many nuts/seeds (345 kcal/100g) when compared by weight
  • Fits a wide range of keto cuisines: Mediterranean, Indian, pickling, and roasts

PREPARATION SUGGESTIONS

DIGESTION TEA

Steep 1 teaspoon seeds in hot water for a soothing after-meal digestif.

SEASONING BLEND

Grind with mustard-seeds and cumin-seeds for a rub on fish or pork.

INDIAN CURRY

Toast lightly and add to keto curry for authentic fennel warmth.

PICKLING SPICE

Add whole seeds to brine for vegetables and keto-friendly condiments.

ROASTED VEGETABLES

Toast and sprinkle over roasted cauliflower or cabbage for subtle anise notes.

SEAFOOD SEASONING

Include in Mediterranean-style seasoning for grilled fish or shrimp.

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