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Melon, watermelon, flesh only

Watermelon is a fruit, and the figures here describe its edible flesh only, without the rind. It consists mainly of water and provides carbohydrate, mostly as naturally occurring sugars, alongside some vitamin C. Per 100g, the flesh contains 92g of water, 7.1g of carbohydrate and 8mg of vitamin C, and provides 133 kJ of energy.

Water in food contributes to fluid intake. Vitamin C supports normal immune function and helps the body absorb iron from plant foods. Watermelon contains little fat or salt, while its carbohydrate content is relevant for people monitoring carbohydrate or sugar intake. Full nutritional figures are provided in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

31 kcal

Energy

133 kJ

Fat

0.3g

of which saturates

0.1g

Carbohydrate

7.1g

of which sugars

7.1g

Protein

0.5g

Salt

0.01g

Alcohol

0g

Water

92g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

19µg

Vitamin D

0µg

Vitamin E

0.1mg

Vitamin K1

0.3µg

Vitamin C

8mg

Thiamin (B1)

0.05mg

Riboflavin (B2)

0.01mg

Niacin (B3)

0.1mg

Vitamin B6

0.14mg

Vitamin B12

0µg

Folate

2µg

Calcium

7mg

Iron

0.3mg

Magnesium

8mg

Phosphorus

9mg

Potassium

100mg

Sodium

2mg

Zinc

0.2mg

Copper

0.03mg

Selenium

Trace

Iodine

Trace

Other types of melon

Food

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Melon, watermelon, flesh only, weighed whole

18 kcal

0.3g

0.2g

–

Melon, Canteloupe-type, flesh only

19 kcal

0.6g

0.1g

1.8g

Melon, Canteloupe-type, flesh only, weighed whole

12 kcal

0.4g

0.1g

1.1g

Melon, Canteloupe-type, flesh only, weighed with skin

13 kcal

0.4g

0.1g

1.2g

Melon, flesh only, average

24 kcal

0.5g

0.1g

1.3g

Melon, flesh only, average, weighed whole

15 kcal

0.3g

0.1g

0.8g

Melon, flesh only, average, weighed with skin

16 kcal

0.3g

0.1g

0.9g

Melon, Galia, flesh only

24 kcal

0.5g

0.1g

–

Melon, Galia, flesh only, weighed whole

16 kcal

0.3g

0.1g

–

Melon, Galia, flesh only, weighed with skin

16 kcal

0.3g

0.1g

–

Melon, Honeydew, flesh only, weighed whole

17 kcal

0.3g

0.1g

0.4g

Melon, Honeydew, flesh only, weighed with skin

18 kcal

0.3g

0.1g

0.4g

Melon, yellow flesh, flesh only

29 kcal

0.5g

0.1g

0.7g

About these figures

Values are per 100g of the food as described (Literature sources;). "Trace" means only a very small amount was found. Nutrients that were not measured are not shown. Salt is calculated from sodium.

Further reading and references

  • Public Health England. McCance and Widdowson's The Composition of Foods Integrated Dataset 2021. GOV.UK.

Article history

The information on this page is written and peer reviewed by qualified clinicians.
  • 4 Nov 2026 | Latest version
  • 3 Nov 2026 | Originally published