Written by CalorieData Nutrition TeamReviewed by a Registered DietitianLast Updated: March 2026

Flaxseed vs Breakfast Cereal: Nutrition Comparison

Which is healthier? Compare calories, protein, carbs, and more

Complete side-by-side nutrition comparison per 100g serving | Updated 2026

Which is Healthier?

Flaxseed is generally healthier

Flaxseed comes out ahead in this comparison, winning in 4 out of 5 key nutritional categories. It has more protein (18g vs 7g), more fiber (27g vs 6g), less sugar (1.6g vs 24g), less sodium (30mg vs 760mg)making it the better choice for most health goals.

Quick Summary

Fewer Calories

Breakfast Cereal

379 kcal

More Protein

Flaxseed

18g

More Fiber

Flaxseed

27g

Less Sugar

Flaxseed

1.6g

Visual Comparison

Caloriesper 100g
Flaxseed
534
Breakfast Cereal
379
Proteinper 100g
Flaxseed
18g
Breakfast Cereal
7g
Carbohydratesper 100g
Flaxseed
29g
Breakfast Cereal
84g
Fatper 100g
Flaxseed
42g
Breakfast Cereal
1.9g

Side-by-Side Nutrition Table

NutrientFlaxseedBreakfast CerealDifference
Calories534kcal379kcal+155.0kcal
Protein18g7g+11.0g
Carbohydrates29g84g-55.0g
Fat42g1.9g+40.1g
Fiber27g6g+21.0g
Sugar1.6g24g-22.4g
Sodium30mg760mg-730.0mg

Serving Size Comparison

All values above are per 100g. Here's how they compare in common serving sizes:

Flaxseed

Per 100g:534 calories
Per cup (150g):801 calories
Per serving (85g):454 calories

Breakfast Cereal

Per 100g:379 calories
Per cup (150g):569 calories
Per serving (85g):322 calories

Diet Compatibility

Flaxseed

High-ProteinVeganVegetarianPaleoLow-Sodium

Breakfast Cereal

VeganVegetarian

When to Choose Flaxseed

  • Higher in protein (18g vs 7g)
  • More fiber (27g vs 6g)
  • Lower in carbs (29g vs 84g)
  • Less sugar (1.6g vs 24g)
  • Lower sodium (30mg vs 760mg)

Common Uses

SnackingToppingsTrail mixBaking
View full Flaxseed nutrition →

When to Choose Breakfast Cereal

  • Lower in calories (379 vs 534)

Common Uses

Side dishesBreakfastMeal baseEnergy food
View full Breakfast Cereal nutrition →

Flaxseed vs Breakfast Cereal: Nutritional Analysis

Flaxseed is more calorie-dense at 534 calories per 100g compared to 379 for Breakfast Cereal, a difference of 155 calories. On the protein front, Flaxseed delivers more with 18g per 100g versus 7g, which matters for muscle maintenance, satiety, and overall metabolic health. These differences become meaningful when you consider how each food fits into your daily dietary pattern rather than looking at any single nutrient in isolation.

Macronutrient Breakdown

The macronutrient profiles of Flaxseed and Breakfast Cereal tell different nutritional stories. Flaxseed provides 29g of carbohydrates, 42g of fat, and 27g of fiber per 100g, while Breakfast Cereal contains 84g carbs, 1.9g fat, and 6g fiber. The higher fiber content in Flaxseed supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Flaxseed contains 1.6g while Breakfast Cereal has 24g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.

Key Takeaways

  • For weight management: Breakfast Cereal is the lower-calorie choice at 379 cal/100g, making it more suitable for calorie-controlled diets.
  • For muscle building: Flaxseed provides more protein (18g/100g), supporting muscle repair and growth.
  • For sustained energy: Flaxseed offers more fiber (27g/100g), which slows digestion and provides steadier energy release.
  • Overall: Neither food is universally "better" than the other. The right choice depends on your specific nutritional goals, meal context, and dietary preferences. Both can play a role in a balanced diet.

Frequently Asked Questions

Which has more calories, Flaxseed or Breakfast Cereal?

Flaxseed has more calories with 534 kcal per 100g, compared to Breakfast Cereal with 379 kcal. That's a difference of 155 calories per 100g serving.

Is Flaxseed healthier than Breakfast Cereal?

Based on our nutritional analysis, Flaxseed is generally the healthier choice, winning in 4 out of 5 key nutritional categories. Flaxseed has 534 calories, 18g protein, and 27g fiber per 100g. However, the best choice depends on your specific dietary goals.

What is the protein difference between Flaxseed and Breakfast Cereal?

Flaxseed has more protein with 18g per 100g, compared to Breakfast Cereal with 7g. Flaxseed provides 11.0g more protein per 100g serving.

Which is better for weight loss, Flaxseed or Breakfast Cereal?

For weight loss, Breakfast Cereal is the better choice with only 379 calories per 100g compared to 534 calories in Flaxseed. Flaxseed also offers 27g of fiber per 100g, which helps you feel fuller longer.

Does Flaxseed or Breakfast Cereal have fewer carbs?

Flaxseed has fewer carbs with 29g per 100g, compared to Breakfast Cereal with 84g. If you're following a low-carb diet, Flaxseed is the better option with 55.0g fewer carbohydrates.

About Our Data

All nutrition data in this comparison is sourced from the USDA FoodData Central, the official food composition database maintained by the U.S. Department of Agriculture. Values are based on 100g servings for accurate comparison.

Health Disclaimer: This comparison is for informational purposes only and is not intended as medical or dietary advice. Nutritional needs vary by individual. The best food choice depends on your personal health goals, dietary requirements, and preferences. Consult a healthcare provider or registered dietitian for personalized nutrition guidance.