Granny Smith apples are a tart, firm green variety that holds its shape when cooked. They provide soluble fibre, vitamin C and polyphenols, with a lower sugar profile than sweeter dessert apples. Included to show how different varieties compare nutritionally.
Eat raw with the skin to keep fibre and polyphenols; included to show varietal differences from the generic average apple figures.
Where Apples, granny smith, with skin, raw Stands Out
Macronutrients per 100g
Glycemic Index & Load
Low GI food — causes a slow, steady rise in blood sugar. Ideal for sustained energy, blood glucose control, and reducing insulin demand.
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 | 116 mg | 6% | |
| Phosphorus | 9.86 mg | 1% | |
| Calcium | 5.48 mg | 1% | |
| Magnesium | 5.06 mg | 1% | |
| Niacin (B3) | 0.110 mg | 1% | |
| Riboflavin (B2) | 0.075 mg | 5% | |
| Iron | 0.070 mg | 0% | |
| Manganese | 0.039 mg | 2% | |
| Copper | 0.035 mg | 4% | |
| Vitamin B6 | 0.028 mg | 2% | |
| Zinc | 0.023 mg | 0% | |
| Thiamin (B1) | 0.017 mg | 2% | |
| Folate | 0.000 µg | 0% | |
| Fructose | 6.36 g | — | |
| Glucose (dextrose) | 2.68 g | — | |
| Sucrose | 1.61 g | — |
* % 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 →
Phytochemicals
Bioactive plant compounds — not classified as essential nutrients but associated with a range of health benefits.