✦ Low in calories ✦ High water content ✦ Source of vitamin C ✦ Provides potassium

Melon, taken as an average across types, is a hydrating low-calorie fruit. Nutrient content varies by variety, with orange-fleshed melons higher in vitamin A precursors and watermelon higher in lycopene.

🍳
Preparation note

Weighed whole figures account for rind and seeds; eat the flesh fresh and chilled to retain vitamin C.

Sources: CoFID 2021

Macronutrients per 100g

15.0
kcal
Energy
0.30
g
Protein
3.50
g
Carbs
0.40
g
Fibre
0.10
g
Fat
3.50
g
Sugars
0.03
g
Salt

How to read GI & GL

GI (Glycemic Index) rates how fast the carbohydrates in a food raise blood glucose compared to pure glucose (= 100). Low GI ≤ 55 means a slow, steady rise. But GI says nothing about how much carbohydrate you're actually eating.

GL (Glycemic Load) fixes that. It multiplies GI by the actual grams of carbohydrate per typical serving: GL = GI × carbs per serving ÷ 100. This makes it the more useful number for real-world blood sugar management.

Why they can disagree — a food with low GI can still carry a high GL if the serving is large and carb-dense. Conversely, watermelon has a high GI (72) but a low GL (4) because a normal portion contains very few carbs. Always read both together.

Low GL ≤ 10 Modest total glucose impact per serving.
Medium GL 11–19 Moderate impact — manageable for most.
High GL ≥ 20 Significant carb load per serving. Consider a smaller portion.

Source: Atkinson et al., International Tables of GI & GL Values 2021, Am J Clin Nutr.

Glycemic Index & Load

60
GI Score
🟡 Medium GI
9
GL / Serving
Low Load

Medium GI food — moderate effect on blood sugar. Pair with protein, fat, or fibre to lower the overall meal GI.

Glycemic Load (GL = GI × carbs ÷ 100) accounts for portion size. A low GL means this food has minimal real-world blood sugar impact.

Vitamins & Minerals

Nutrient Per 100g % Daily Value* Level
Potassium 112 mg 6%
Chloride 45.0 mg 6%
Vitamin C 10.0 mg 13%
Calcium 8.00 mg 1%
Phosphorus 6.00 mg 1%
Magnesium 6.00 mg 2%
Folate 4.00 µg 2%
Niacin (B3) 0.300 mg 2%
Niacin equivalents (NE) 0.300 mg 2%
Iron 0.140 mg 1%
Pantothenic Acid (B5) 0.110 mg 2%
Zinc 0.100 mg 1%
Vitamin B6 0.060 mg 4%
Vitamin E (alpha-TE) 0.060 mg 1%
Thiamin (B1) 0.030 mg 3%
Manganese 0.010 mg 1%
Riboflavin (B2) 0.010 mg 1%
Copper 0.010 mg 1%
Vitamin D 0.000 µg 0%
Vitamin A (RE) 0.000 µg 0%
Selenium 0.000 µg 0%
Vitamin B12 0.000 µg 0%
Polyunsaturated fat (PUFA) 0.030 g —
Trans fat 0.000 g —
Fructose 1.40 g —
Glucose (dextrose) 1.10 g —
Sucrose 1.00 g —
Maltose 0.000 g —
Cholesterol 0.000 mg —
Retinol (vitamin A) 0.000 µg 0%

* % Daily Value is the proportion of an adult EU Nutrient Reference Value (NRV) supplied by 100g of this food. NRVs are the labelling standard — the same basis as the “%RI” figures printed on food packaging — so these percentages are directly comparable with a shop label. They are a single adult figure and do not vary by age or sex, which is why they sometimes differ from UK dietary reference values: the NRV for vitamin C is 80mg where the UK RNI is 40mg. When Nutriofia assesses your own intake in the reports and trackers, it uses the age- and sex-specific UK values instead.

Fibre is shown without a percentage. Our fibre values use the UK Englyst NSP method, while the published 30g daily goal is an AOAC figure — the two are measured differently and a single percentage would mislead. How we source and normalise our data →

Sources: CoFID 2021
Fruits Melons 🇬🇧 CoFID 2021 · 14-355