Data last updated: April 2026

Flaxseed vs Sardine

Nutrition Comparison per 100g

Flaxseed 5
vs
5 Sardine

Nuts & Seeds vs Fish

Side-by-Side Nutrition Facts

Nutrient Flaxseed Sardine Better
Calories 534kcal 208kcal Sardine
Protein 18.3g 24.6g Sardine
Total Fat 42.2g 11.5g Sardine
Carbohydrates 28.9g 0g Flaxseed
Fiber 27.3g 0g Flaxseed
Sugar 1.6g 0g Sardine
Vitamin C 0.6mg 0mg Flaxseed
Calcium 255mg 382mg Sardine
Iron 5.7mg 2.9mg Flaxseed
Potassium 813mg 397mg Flaxseed

Macronutrient Breakdown

Flaxseed

Protein: 18.3g Fat: 42.2g Carbs: 28.9g

Sardine

Protein: 24.6g Fat: 11.5g Carbs: 0g

Data Source

Nutrition data sourced from the USDA FoodData Central SR Legacy database. All values are per 100g of the food item. Actual nutritional content may vary by preparation method, brand, and serving size.

Flaxseed vs Sardine — Key Takeaway

Sardine has 326 fewer calories per 100g than Flaxseed, making it the lighter option. For protein, Sardine leads with 24.6g per 100g. Flaxseed is the better source of fiber at 27.3g per 100g.

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