Fennel Seed Nutrition Facts

FoodData Central Updated 30 March 2026

One teaspoon of fennel seed contains 6.9 calories, 0.3g protein, 1g carbs, and 0.3g fat. Sweet, anise-scented seeds used whole or ground in sausage, curry and bread. Used in quantities too small to contribute meaningful nutrition.

6.9

cal

1g

carbs

0.3g

protein

amino acids ↓

0.3g

fat

0.8g

fiber

sugar

Vitamins in Fennel Seed

Per 1 tsp ~2g

Vitamin A
0.14mcg
<1%
Vitamin C
0.42mg
<1%
Vitamin B6
9.4mcg
<1%
Thiamin (B1)
8.16mcg
<1%
Riboflavin (B2)
7.06mcg
<1%
Niacin (B3)
0.12mg
<1%

Minerals in Fennel Seed

Per 1 tsp ~2g

Calcium
23.9mg
2%
Iron
0.37mg
2%
Magnesium
7.7mg
2%
Phosphorus
9.74mg
<1%
Potassium
33.9mg
<1%
Sodium
1.76mg
<1%
Zinc
0.07mg
<1%
Copper
0.02mg
2%
Manganese
0.13mg
6%

Amino Acids in Fennel Seed

Protein breakdown per 1 tsp (2g), from the USDA record for this food.

Complete protein

Fennel Seed supplies all nine essential amino acids at or above the FAO/WHO adult reference pattern.

Essential Amino Acids Per 1 tsp (2g) Per 100g % of Protein
Histidine 7mg 331mg 2.1%
Isoleucine 14mg 695mg 4.4%
Leucine 20mg 996mg 6.3%
Lysine 15mg 758mg 4.8%
Methionine 6mg 301mg 1.9%
Phenylalanine 13mg 647mg 4.1%
Threonine 12mg 602mg 3.8%
Tryptophan 5mg 253mg 1.6%
Valine 18mg 915mg 5.8%
Other Amino Acids Per 1 tsp (2g) Per 100g % of Protein
Alanine 16mg 789mg 5%
Arginine 14mg 680mg 4.3%
Aspartic Acid 37mg 1833mg 11.6%
Cystine 4mg 222mg 1.4%
Glutamic Acid 59mg 2956mg 18.7%
Glycine 22mg 1107mg 7%
Proline 18mg 900mg 5.7%
Serine 18mg 900mg 5.7%
Tyrosine 8mg 410mg 2.6%

Protein quality is scored against the FAO/WHO/UNU 2007 adult indispensable amino acid reference pattern. The FDA publishes no Daily Values for individual amino acids, so the share of total protein is shown instead.

Learn More About Fennel Seed

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Verified Nutrition Data

Trusted & Verified Nutritional Information

All nutritional data on Food Index is sourced from official U.S. government databases and verified by nutrition experts at leading federal agencies.

USDA Official Source
FDA Safety Standards
HHS Health Standards
NIH Research Verified

Laboratory Analyzed

Nutrient values from certified lab analysis

Peer Reviewed

Data reviewed by nutrition scientists

Regularly Updated

Synced with latest official database releases

Nutritional values are based on standard reference data and may vary slightly based on preparation methods, brands, and natural variation in foods. Always consult with a healthcare professional for personalized dietary advice.