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Soy sauce, light and dark varieties

Soy sauce is a liquid seasoning made from fermented soya beans, often with wheat and added salt. The figures here cover light and dark varieties. Per 100g, it provides 18g of carbohydrate, including 16g of sugars, alongside 3g of protein and 14g of salt. It contains only trace amounts of fat and fibre.

The salt content is worth noting for people monitoring their salt intake. Light soy sauce does not necessarily mean reduced-salt soy sauce, and amounts vary between products. Soy sauce contains soya and may also contain wheat, which is relevant to people with food allergies or coeliac disease. Full nutrient figures are shown in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

79 kcal

Energy

337 kJ

Fat

Trace

of which saturates

0g

Carbohydrate

18g

of which sugars

16g

Fibre

Trace

Protein

3g

Salt

14g

Alcohol

0g

Water

65g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

0µg

Vitamin D

0µg

Vitamin C

0mg

Thiamin (B1)

0.05mg

Riboflavin (B2)

0.13mg

Niacin (B3)

3.4mg

Vitamin B12

0µg

Folate

11µg

Calcium

17mg

Iron

2.4mg

Magnesium

37mg

Phosphorus

47mg

Potassium

180mg

Sodium

5500mg

Zinc

0.2mg

Copper

0.01mg

About these figures

Values are per 100g of the food as described (8 samples, 4 brands). "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