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

Asparagus vs Butter: 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?

Asparagus is generally healthier

Asparagus comes out ahead in this comparison, winning in 4 out of 5 key nutritional categories. It has fewer calories (20 vs 717), more protein (2.2g vs 0.9g), more fiber (2.1g vs 0g), less sodium (2mg vs 11mg)making it the better choice for most health goals.

Quick Summary

Fewer Calories

Asparagus

20 kcal

More Protein

Asparagus

2.2g

More Fiber

Asparagus

2.1g

Less Sugar

Butter

0.1g

Visual Comparison

Caloriesper 100g
Asparagus
20
Butter
717
Proteinper 100g
Asparagus
2.2g
Butter
0.9g
Carbohydratesper 100g
Asparagus
4g
Butter
0.1g
Fatper 100g
Asparagus
0.1g
Butter
81g

Side-by-Side Nutrition Table

NutrientAsparagusButterDifference
Calories20kcal717kcal-697.0kcal
Protein2.2g0.9g+1.3g
Carbohydrates4g0.1g+3.9g
Fat0.1g81g-80.9g
Fiber2.1g0g+2.1g
Sugar1.9g0.1g+1.8g
Sodium2mg11mg-9.0mg

Serving Size Comparison

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

Asparagus

Per 100g:20 calories
Per cup (150g):30 calories
Per serving (85g):17 calories

Butter

Per 100g:717 calories
Per cup (150g):1076 calories
Per serving (85g):609 calories

Diet Compatibility

Asparagus

Low-CarbLow-CalorieVeganVegetarianPaleoLow-Sodium

Butter

KetoLow-CarbVegetarianLow-Sodium

When to Choose Asparagus

  • Lower in calories (20 vs 717)
  • Higher in protein (2.2g vs 0.9g)
  • More fiber (2.1g vs 0g)
  • Lower sodium (2mg vs 11mg)

Common Uses

SaladsStir-friesRoasted sidesSoups
View full Asparagus nutrition →

When to Choose Butter

  • Lower in carbs (0.1g vs 4g)
  • Less sugar (0.1g vs 1.9g)

Common Uses

BreakfastSnacksCooking ingredientPost-workout
View full Butter nutrition →

Asparagus vs Butter: Nutritional Analysis

Butter is more calorie-dense at 717 calories per 100g compared to 20 for Asparagus, a difference of 697 calories. On the protein front, Asparagus delivers more with 2.2g per 100g versus 0.9g, 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 Asparagus and Butter tell different nutritional stories. Asparagus provides 4g of carbohydrates, 0.1g of fat, and 2.1g of fiber per 100g, while Butter contains 0.1g carbs, 81g fat, and 0g fiber. The higher fiber content in Asparagus supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Asparagus contains 1.9g while Butter has 0.1g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.

Key Takeaways

  • For weight management: Asparagus is the lower-calorie choice at 20 cal/100g, making it more suitable for calorie-controlled diets.
  • For muscle building: Asparagus provides more protein (2.2g/100g), supporting muscle repair and growth.
  • For sustained energy: Asparagus offers more fiber (2.1g/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, Asparagus or Butter?

Butter has more calories with 717 kcal per 100g, compared to Asparagus with 20 kcal. That's a difference of 697 calories per 100g serving.

Is Asparagus healthier than Butter?

Based on our nutritional analysis, Asparagus is generally the healthier choice, winning in 4 out of 5 key nutritional categories. Asparagus has 20 calories, 2.2g protein, and 2.1g fiber per 100g. However, the best choice depends on your specific dietary goals.

What is the protein difference between Asparagus and Butter?

Asparagus has more protein with 2.2g per 100g, compared to Butter with 0.9g. Asparagus provides 1.3g more protein per 100g serving.

Which is better for weight loss, Asparagus or Butter?

For weight loss, Asparagus is the better choice with only 20 calories per 100g compared to 717 calories in Butter. Asparagus also offers 2.1g of fiber per 100g, which helps you feel fuller longer.

Does Asparagus or Butter have fewer carbs?

Butter has fewer carbs with 0.1g per 100g, compared to Asparagus with 4g. If you're following a low-carb diet, Butter is the better option with 3.9g 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.