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

Tomato vs Soybean: 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?

Soybean is generally healthier

Soybean comes out ahead in this comparison, winning in 4 out of 5 key nutritional categories. It has more protein (11g vs 0.9g), more fiber (2.5g vs 1.2g), less sugar (0.7g vs 2.6g), less sodium (1mg vs 5mg)making it the better choice for most health goals.

Quick Summary

Fewer Calories

Tomato

18 kcal

More Protein

Soybean

11g

More Fiber

Soybean

2.5g

Less Sugar

Soybean

0.7g

Visual Comparison

Caloriesper 100g
Tomato
18
Soybean
95
Proteinper 100g
Tomato
0.9g
Soybean
11g
Carbohydratesper 100g
Tomato
4g
Soybean
12g
Fatper 100g
Tomato
0.2g
Soybean
5g

Side-by-Side Nutrition Table

NutrientTomatoSoybeanDifference
Calories18kcal95kcal-77.0kcal
Protein0.9g11g-10.1g
Carbohydrates4g12g-8.0g
Fat0.2g5g-4.8g
Fiber1.2g2.5g-1.3g
Sugar2.6g0.7g+1.9g
Sodium5mg1mg+4.0mg

Serving Size Comparison

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

Tomato

Per 100g:18 calories
Per cup (150g):27 calories
Per serving (85g):15 calories

Soybean

Per 100g:95 calories
Per cup (150g):143 calories
Per serving (85g):81 calories

Diet Compatibility

Tomato

Low-CarbLow-CalorieVeganVegetarianPaleoLow-Sodium

Soybean

Low-CalorieVeganVegetarianPaleoLow-Sodium

When to Choose Tomato

  • Lower in calories (18 vs 95)
  • Lower in carbs (4g vs 12g)

Common Uses

SaladsStir-friesRoasted sidesSoups
View full Tomato nutrition →

When to Choose Soybean

  • Higher in protein (11g vs 0.9g)
  • More fiber (2.5g vs 1.2g)
  • Less sugar (0.7g vs 2.6g)
  • Lower sodium (1mg vs 5mg)

Common Uses

SaladsStir-friesRoasted sidesSoups
View full Soybean nutrition →

Tomato vs Soybean: Nutritional Analysis

Soybean is more calorie-dense at 95 calories per 100g compared to 18 for Tomato, a difference of 77 calories. On the protein front, Soybean delivers more with 11g 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 Tomato and Soybean tell different nutritional stories. Tomato provides 4g of carbohydrates, 0.2g of fat, and 1.2g of fiber per 100g, while Soybean contains 12g carbs, 5g fat, and 2.5g fiber. The higher fiber content in Soybean supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Tomato contains 2.6g while Soybean has 0.7g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.

Key Takeaways

  • For weight management: Tomato is the lower-calorie choice at 18 cal/100g, making it more suitable for calorie-controlled diets.
  • For muscle building: Soybean provides more protein (11g/100g), supporting muscle repair and growth.
  • For sustained energy: Soybean offers more fiber (2.5g/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, Tomato or Soybean?

Soybean has more calories with 95 kcal per 100g, compared to Tomato with 18 kcal. That's a difference of 77 calories per 100g serving.

Is Tomato healthier than Soybean?

Based on our nutritional analysis, Soybean is generally the healthier choice, winning in 4 out of 5 key nutritional categories. Soybean has 95 calories, 11g protein, and 2.5g fiber per 100g. However, the best choice depends on your specific dietary goals.

What is the protein difference between Tomato and Soybean?

Soybean has more protein with 11g per 100g, compared to Tomato with 0.9g. Soybean provides 10.1g more protein per 100g serving.

Which is better for weight loss, Tomato or Soybean?

For weight loss, Tomato is the better choice with only 18 calories per 100g compared to 95 calories in Soybean. Soybean also offers 2.5g of fiber per 100g, which helps you feel fuller longer.

Does Tomato or Soybean have fewer carbs?

Tomato has fewer carbs with 4g per 100g, compared to Soybean with 12g. If you're following a low-carb diet, Tomato is the better option with 8.0g 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.