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

Guava vs Watermelon: 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?

Guava is generally healthier

Guava comes out ahead in this comparison, winning in 3 out of 5 key nutritional categories. It has more protein (2.6g vs 0.6g), more fiber (5.4g vs 0.4g), less sodium (2mg vs 28mg)making it the better choice for most health goals.

Quick Summary

Fewer Calories

Watermelon

30 kcal

More Protein

Guava

2.6g

More Fiber

Guava

5.4g

Less Sugar

Watermelon

7g

Visual Comparison

Caloriesper 100g
Guava
68
Watermelon
30
Proteinper 100g
Guava
2.6g
Watermelon
0.6g
Carbohydratesper 100g
Guava
14g
Watermelon
8g
Fatper 100g
Guava
0.9g
Watermelon
0.2g

Side-by-Side Nutrition Table

NutrientGuavaWatermelonDifference
Calories68kcal30kcal+38.0kcal
Protein2.6g0.6g+2.0g
Carbohydrates14g8g+6.0g
Fat0.9g0.2g+0.7g
Fiber5.4g0.4g+5.0g
Sugar9g7g+2.0g
Sodium2mg28mg-26.0mg

Serving Size Comparison

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

Guava

Per 100g:68 calories
Per cup (150g):102 calories
Per serving (85g):58 calories

Watermelon

Per 100g:30 calories
Per cup (150g):45 calories
Per serving (85g):26 calories

Diet Compatibility

Guava

Low-CalorieVeganVegetarianPaleoLow-Sodium

Watermelon

Low-CarbLow-CalorieVeganVegetarianPaleoLow-Sodium

When to Choose Guava

  • Higher in protein (2.6g vs 0.6g)
  • More fiber (5.4g vs 0.4g)
  • Lower sodium (2mg vs 28mg)

Common Uses

Fresh snacksSmoothiesDessertsBreakfast bowls
View full Guava nutrition →

When to Choose Watermelon

  • Lower in calories (30 vs 68)
  • Lower in carbs (8g vs 14g)
  • Less sugar (7g vs 9g)

Common Uses

Fresh snacksSmoothiesDessertsBreakfast bowls
View full Watermelon nutrition →

Guava vs Watermelon: Nutritional Analysis

Guava is more calorie-dense at 68 calories per 100g compared to 30 for Watermelon, a difference of 38 calories. On the protein front, Guava delivers more with 2.6g per 100g versus 0.6g, 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 Guava and Watermelon tell different nutritional stories. Guava provides 14g of carbohydrates, 0.9g of fat, and 5.4g of fiber per 100g, while Watermelon contains 8g carbs, 0.2g fat, and 0.4g fiber. The higher fiber content in Guava supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Guava contains 9g while Watermelon has 7g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.

Key Takeaways

  • For weight management: Watermelon is the lower-calorie choice at 30 cal/100g, making it more suitable for calorie-controlled diets.
  • For muscle building: Guava provides more protein (2.6g/100g), supporting muscle repair and growth.
  • For sustained energy: Guava offers more fiber (5.4g/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, Guava or Watermelon?

Guava has more calories with 68 kcal per 100g, compared to Watermelon with 30 kcal. That's a difference of 38 calories per 100g serving.

Is Guava healthier than Watermelon?

Based on our nutritional analysis, Guava is generally the healthier choice, winning in 3 out of 5 key nutritional categories. Guava has 68 calories, 2.6g protein, and 5.4g fiber per 100g. However, the best choice depends on your specific dietary goals.

What is the protein difference between Guava and Watermelon?

Guava has more protein with 2.6g per 100g, compared to Watermelon with 0.6g. Guava provides 2.0g more protein per 100g serving.

Which is better for weight loss, Guava or Watermelon?

For weight loss, Watermelon is the better choice with only 30 calories per 100g compared to 68 calories in Guava. Guava also offers 5.4g of fiber per 100g, which helps you feel fuller longer.

Does Guava or Watermelon have fewer carbs?

Watermelon has fewer carbs with 8g per 100g, compared to Guava with 14g. If you're following a low-carb diet, Watermelon is the better option with 6.0g 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.