Heinz

Seriously Good Mayonnaise — Calories, Nutrition & Ingredients

395ml/400g UPC 5900783009724 Mayonnaises Updated 16 Oct 2026

Seriously Good Mayonnaise
Photo: Open Food Facts contributors, CC BY-SA 3.0
Calories
644per 100 ml
Protein
0.8 gper 100 ml
Carbs
3 gper 100 ml
Fat
70 gper 100 ml

Where to buy

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Per 100 ml, Seriously Good Mayonnaise has 644 calories, 0.8 g protein and 70 g fat.

Label highlights: Fat: high Saturates: high Sugars: low Salt: high HFSS

Red means high in the UK front-of-pack traffic-light system. These colours are our calculation from the declared values, not a label on the pack. In this product:

  • Fat: 70 g per 100 ml (red above 8.75 g)
  • Saturates: 5.30 g per 100 ml (red above 2.50 g)
  • Salt: 1 g per 100 ml (red above 0.75 g)
Calculated from the nutrition data on file; check the package label. How the traffic-light colours work »

Nutrition

Typical valuesPer 100 ml
Energy 2694 kJ / 644 kcal
Fat 70 g
of which saturates 5.3 g
Carbohydrate 3 g
of which sugars 1.5 g
Fibre 0 g
Protein 0.8 g
Salt 1 g

Calculated from Open Food Facts per-100 g data for the stated serving; values may differ slightly from the package label because of rounding.

Per 100 ml and custom amounts

Nutrition per amount

644 calories in 100 ml
Protein0.8 g
Carbohydrates3 g
Sugars1.5 g
Fibre0 g
Fat70 g
Saturated fat5.3 g
Sodium400 mg

Ingredient flags

Ingredient list not available — flags cannot be shown.

Data: Open Food Facts (ODbL) · Photo: Open Food Facts contributors (CC BY-SA)

Where to buy Seriously Good Mayonnaise

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Healthier swaps

Same category, better nutrition per 100 g (see methodology).

We compare per-100 g values from Open Food Facts. A swap must be at least as good on sugars, saturates, salt, calories, protein and fibre (where listed) and strictly better on at least one of those nutrients. Check the label for your portion size.

Frequently asked questions

How many calories are in Seriously Good Mayonnaise?

Per 100 g of Seriously Good Mayonnaise there are 644 calories.

How much protein is in Seriously Good Mayonnaise?

Per 100 g of Seriously Good Mayonnaise there are 0.8 g protein.

How many carbohydrates are in Seriously Good Mayonnaise?

Per 100 g of Seriously Good Mayonnaise there are 3.0 g carbohydrates. Of which 1.5 g sugars.

How much sugar is in Seriously Good Mayonnaise?

Per 100 g of Seriously Good Mayonnaise there are 1.5 g sugars.

How much sodium (salt) is in Seriously Good Mayonnaise?

Per 100 g of Seriously Good Mayonnaise there are 400.0 mg sodium. UK guidance is for adults to eat no more than 6 g of salt (about 2,400 mg of sodium) a day.

How much fibre is in Seriously Good Mayonnaise?

Per 100 g of Seriously Good Mayonnaise there are 0.0 g fibre. Fibre is important for digestive health.

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