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Agar, dried

Agar is a substance extracted from seaweed and used to thicken or set foods. The figures here describe dried agar, rather than agar prepared with water or added to a recipe. Its main listed nutrients are minerals: per 100g, it provides 760mg of calcium, 620mg of magnesium, 21mg of iron and 14mg of zinc.

Calcium helps maintain bones and teeth, while magnesium supports normal muscle and nerve function. Iron is needed to make haemoglobin, which carries oxygen in the blood. The amount of these nutrients in a food made with agar depends on how much agar is used and the other ingredients. Full nutritional figures are provided in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

16 kcal

Energy

67 kJ

Gordura

1.2g

of which saturates

0.3g

Carbohydrate

Trace

of which sugars

Trace

Proteína

1.3g

Sal

0.28g

Água

9.7g

Colesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

0µg

Vitamina D

0µg

Vitamina E

Trace

Vitamina C

0mg

Thiamin (B1)

0.01mg

Riboflavin (B2)

0.22mg

Niacin (B3)

0.2mg

Vitamina B6

Trace

Vitamina B12

0µg

Ácido Fólico

0µg

Cálcio

760mg

Ferro

21mg

Magnésio

620mg

Phosphorus

50mg

Potássio

110mg

Sódio

110mg

Zinco

14mg

Other types of agar

Alimentos

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Agar, dried, soaked and drained

2 kcal

0.2g

0.1g

–

About these figures

Values are per 100g of the food as described (Literature sources). "Trace" means only a very small amount was found. Nutrients that were not measured are not shown. Salt is calculated from sodium.

Leitura adicional e referências

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

Histórico do artigo

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  • 3 Nov 2026 | Última versão
  • 3 Nov 2026 | Publicado originalmente