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Smooth mustard is a prepared condiment made from mustard seeds. The figures here cover smooth mustard types, including English and French mustard. It provides carbohydrate, fat and protein: per 100g, it contains 9.7g of carbohydrate, 8.2g of fat and 7.1g of protein. Its salt content is 7.4g per 100g.

Protein contributes to the growth and repair of body tissues, while carbohydrate and fat provide energy. The salt content is particularly relevant for people monitoring their salt intake. The amount consumed depends on how much mustard is used, including when added to sauces or dressings. Full nutrient figures are provided in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

139 kcal

Energy

579 kJ

Fat

8.2g

of which saturates

0.5g

Carbohydrate

9.7g

of which sugars

7.8g

Protein

7.1g

Salt

7.4g

Alcohol

0g

Water

64g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin D

0µg

Vitamin C

0mg

Vitamin B12

0µg

Folate

0µg

Calcium

70mg

Iron

2.9mg

Magnesium

82mg

Phosphorus

190mg

Potassium

200mg

Sodium

2950mg

Zinc

1mg

Copper

0.19mg

Other types of mustard

Food

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Mustard, powder, made up

226 kcal

15g

14g

–

Mustard, wholegrain

140 kcal

8.2g

10g

–

About these figures

Values are per 100g of the food as described (10 samples, 7 types including English and French). "Trace" means only a very small amount was found. Nutrients that were not measured are not shown. Salt is calculated from sodium.

Further reading and references

  • Public Health England. McCance and Widdowson's The Composition of Foods Integrated Dataset 2021. GOV.UK.

Article history

The information on this page is written and peer reviewed by qualified clinicians.
  • 4 Nov 2026 | Latest version
  • 3 Nov 2026 | Originally published