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How Much is 100 Grams of Watermelon?

3 min read

Over 90% of a watermelon's weight is water, making it a super hydrating and low-calorie food. A standard 100 grams of watermelon is a refreshing and nutritious snack that provides essential vitamins and minerals without a significant caloric impact, making it popular for those managing their weight.

Quick Summary

A 100-gram serving of watermelon provides approximately 30 calories, mostly from carbohydrates, with very little protein or fat. It is packed with water and contains beneficial antioxidants like lycopene.

Key Points

  • Low Calories: 100 grams of watermelon contains only about 30 calories, making it a great low-calorie snack option.

  • High Water Content: Over 90% of a 100g serving is water, which aids in hydration and promotes a feeling of fullness.

  • Nutrient-Dense: It provides essential vitamins and minerals like Vitamin C, Vitamin A, and potassium.

  • Rich in Lycopene: Watermelon contains the antioxidant lycopene, known for its heart-healthy and anti-inflammatory properties.

  • Great for Weight Loss: The combination of high water content and low calories can help with weight management by satisfying hunger with minimal caloric intake.

  • Small Portion: 100 grams is a small portion, roughly two-thirds of a cup of diced fruit, making it easy to fit into a meal plan.

  • Aids Digestion: The fiber and water content can help support a healthy digestive system.

In This Article

What Does 100 Grams of Watermelon Look Like?

For many, visualizing 100 grams can be a challenge. In practical terms, 100 grams of watermelon is a relatively small and manageable portion, roughly equivalent to about two-thirds of a US customary cup of diced watermelon. It could also be a thin, modest slice or a handful of bite-sized cubes. Because watermelon is so high in water content and relatively low in density, you get a decent volume of food for a minimal calorie count, which is one reason it’s so popular as a healthy snack.

Detailed Nutrition Breakdown of 100g Watermelon

When you consume 100 grams of watermelon, you are primarily ingesting water, along with some carbohydrates and key micronutrients. This makes it an ideal choice for hydration and a guilt-free sweet treat. The nutritional values can vary slightly based on the ripeness and variety, but the following are standard estimations:

  • Calories: Approximately 30 kcal
  • Water Content: About 91 grams
  • Carbohydrates: Roughly 7.6 grams (mostly simple sugars like fructose, glucose, and sucrose)
  • Protein: Approximately 0.6 grams
  • Fat: Around 0.2 grams
  • Fiber: A modest 0.4 grams
  • Vitamin C: Around 8.1 mg, contributing to skin and immune health
  • Vitamin A: Approximately 28 mcg, important for vision
  • Potassium: About 112 mg, which helps regulate blood pressure

Health Benefits of a Small Watermelon Portion

Even a modest 100-gram serving provides a host of health benefits, proving that you don't need a large amount to reap the rewards of this fruit:

  • Superior Hydration: With over 90% water, it's an excellent way to replenish fluids and stay hydrated, especially during warm weather or after exercise.
  • Antioxidant Power: Watermelon is rich in lycopene, a potent antioxidant that gives the fruit its red color. Lycopene is linked to a reduced risk of certain cancers and improved heart health.
  • Heart Health: Besides lycopene, watermelon contains citrulline, an amino acid that can help improve blood flow and lower blood pressure.
  • Weight Management: The high water content promotes a feeling of fullness, which can help curb cravings and reduce overall calorie intake.

Comparison: 100g Watermelon vs. Other Fruits

To put the nutrition of 100g of watermelon into perspective, let's compare it with a few other popular fruits. This table highlights how watermelon's composition, particularly its high water content and low calories, stacks up against other common choices. While other fruits offer different nutrient profiles, watermelon is often the clear winner for low-calorie hydration and a low-fat option.

Nutrient (per 100g) Watermelon Cantaloupe Banana Pineapple
Calories 30 34 89 50
Water Content ~91g ~90g ~75g ~86g
Carbohydrates 7.6g 8.16g 23g 13g
Sugar 6.2g 7.9g 12g 10g
Fiber 0.4g 0.9g 2.6g 1.4g
Vitamin C 8.1mg 36.7mg 8.7mg 47.8mg
Lycopene High Trace None None

The Role of Watermelon in a Balanced Diet

Incorporating watermelon into your daily diet is simple and beneficial. A 100-gram portion can serve as a perfect mid-day snack to boost hydration and energy levels naturally. It can be added to salads, blended into refreshing smoothies, or simply enjoyed on its own. For those focusing on weight loss, its ability to fill you up for few calories makes it an excellent addition. Even with its relatively high glycemic index, the overall carbohydrate and sugar load in a small serving is not significant enough to cause a major blood sugar spike for most people. As part of a diverse and nutrient-rich diet, watermelon is a fantastic choice for supporting overall well-being. For more information on the health benefits of watermelon, explore resources from reputable health organizations.

Conclusion

In summary, 100 grams of watermelon is a small, nutrient-dense serving containing approximately 30 calories, mostly from its natural sugars. With its high water content, it is an exceptionally hydrating fruit, offering a good dose of vitamins A and C, potassium, and the antioxidant lycopene. This low-calorie, refreshing portion makes it a smart choice for healthy snacking, hydration, and weight management, proving that a little bit of this delicious fruit goes a long way towards supporting your health goals.

Frequently Asked Questions

100 grams of watermelon is a small portion, approximately two-thirds of a US customary cup of diced cubes or a single, small wedge.

There are approximately 30 calories in 100 grams of watermelon, making it a very low-calorie and refreshing fruit choice.

Yes, watermelon is excellent for weight loss. Its high water content helps you feel full for longer, and its low-calorie count makes it an ideal snack for managing calorie intake.

While it contains natural sugars (about 6.2g per 100g), the overall sugar load in a 100-gram portion is relatively small and not considered 'a lot'.

No, 100 grams is not a lot. It's a modest, healthy snack size. It's easy to eat more than 100 grams, so it's a good benchmark for a single serving.

The primary component of 100 grams of watermelon is water, which makes up over 90% of its weight. Carbohydrates are the next most significant macronutrient.

For most people, eating watermelon at night is fine. However, due to its high water content, some people may need to urinate more frequently overnight if they eat a large amount right before bed.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.