✦ Excellent lycopene source from cooked tomatoes ✦ Vitamin C, potassium, and folate ✦ Lycopene absorption enhanced by olive oil ✦ Lower sugar and sodium than commercial sauces

Homemade tomato sauce is a cooked sauce made from fresh or canned tomatoes, garlic, onion, olive oil, and herbs. It is an excellent source of lycopene (enhanced by cooking and the presence of oil, which improves carotenoid absorption), vitamin C, potassium, and folate. With no added sugar and minimal sodium compared to bottled sauces, homemade tomato sauce is nutritionally superior to most commercial alternatives.

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Preparation note

Cook the sauce low and slow for at least 20–30 minutes to concentrate the lycopene and develop sweetness naturally — no added sugar is needed if the tomatoes are ripe and well-cooked. Use a mix of canned plum tomatoes and a tablespoon of tomato puree for the richest depth of flavour.

Sources: CoFID 2021

Macronutrients per 100g

89.0
kcal
Energy
2.20
g
Protein
8.60
g
Carbs
1.40
g
Fibre
5.50
g
Fat
4.00
g
Sugars
1.80
g
Saturates
0.85
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

40
GI Score
🟢 Low GI
4
GL / Serving
Low 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
Chloride 560 mg 70%
Potassium 280 mg 14%
Vitamin A (RE) 204 µg 29%
Phosphorus 39.0 mg 6%
Calcium 19.0 mg 2%
Magnesium 10.0 mg 3%
Folate 9.00 µg 5%
Vitamin C 8.00 mg 10%
Niacin equivalents (NE) 1.60 mg 10%
Vitamin E (alpha-TE) 1.47 mg 12%
Niacin (B3) 1.20 mg 8%
Selenium 1.00 µg 2%
Iron 0.600 mg 4%
Vitamin D 0.300 µg 2%
Zinc 0.300 mg 3%
Pantothenic Acid (B5) 0.220 mg 4%
Vitamin B6 0.140 mg 10%
Thiamin (B1) 0.110 mg 10%
Manganese 0.100 mg 5%
Copper 0.030 mg 3%
Riboflavin (B2) 0.020 mg 1%
Vitamin B12 0.000 µg 0%
Iodine 5.00 µg 3%
Monounsaturated fat 2.20 g —
Polyunsaturated fat (PUFA) 1.10 g —
Cholesterol 10.0 mg —
Beta-carotene 1,070 µg —
Retinol (vitamin A) 26.0 µg 4%
Biotin (Vitamin B7) 1.20 µg 2%

* % 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
Prepared & Other Sauces & Condiments 🇬🇧 CoFID 2021 · 50-1173