✦ Carbohydrate energy ✦ Vitamin C ✦ Potassium ✦ Skin adds fibre

New and salad potatoes are young, waxy potatoes harvested early, supplying carbohydrate energy, vitamin C, potassium, vitamin B6, and some fibre, mainly in the thin skin. They tend to have a lower glycaemic response than older floury potatoes.

🍳
Preparation note

Always cook before eating; new potatoes are best with skin on for fibre and flavour.

Sources: CoFID 2021

Macronutrients per 100g

68.0
kcal
Energy
1.70
g
Protein
16.1
g
Carbs
1.00
g
Fibre
0.10
g
Fat
1.30
g
Sugars
0.04
g
Saturates
0.01
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

89
GI Score
🔴 High GI
13
GL / Serving
Medium Load

High GI food — causes a rapid rise in blood sugar. Best eaten in small portions combined with lower-GI foods, protein, or fat.

Glycemic Load (GL = GI × carbs ÷ 100) accounts for portion size. A moderate GL — portion size matters here.

Vitamins & Minerals

Nutrient Per 100g % Daily Value* Level
Potassium 320 mg 16%
Chloride 117 mg 15%
Phosphorus 34.0 mg 5%
Folate 25.0 µg 13%
Magnesium 14.0 mg 4%
Vitamin C 7.00 mg 9%
Calcium 6.00 mg 1%
Niacin equivalents (NE) 1.10 mg 7%
Niacin (B3) 0.700 mg 4%
Pantothenic Acid (B5) 0.500 mg 8%
Zinc 0.200 mg 2%
Vitamin B6 0.160 mg 11%
Thiamin (B1) 0.150 mg 14%
Iron 0.110 mg 1%
Manganese 0.100 mg 5%
Copper 0.090 mg 9%
Vitamin E (alpha-TE) 0.060 mg 1%
Riboflavin (B2) 0.020 mg 1%
Selenium 0.000 µg 0%
Vitamin B12 0.000 µg 0%
Vitamin D 0.000 µg 0%
Vitamin A (RE) 0.000 µg 0%
Iodine 0.000 µg 0%
Polyunsaturated fat (PUFA) 0.020 g —
Monounsaturated fat 0.020 g —
Trans fat 0.000 g —
Sucrose 0.700 g —
Fructose 0.300 g —
Glucose (dextrose) 0.300 g —
Maltose 0.000 g —
Cholesterol 0.000 mg —
Biotin (Vitamin B7) 0.300 µg 1%
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
Vegetables Tubers & Starchy Phytochemical data available 🇬🇧 CoFID 2021 · 13-618