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Agar, dried, soaked and drained

Agar is a gelling substance obtained from seaweed. The figures here describe dried agar after it has been soaked and drained, rather than agar in its dry form. It consists mainly of water and provides minerals, including calcium, iron and magnesium. Per 100g, it contains 7 kJ of energy, 110mg of calcium, 3.5mg of iron and 75mg of magnesium.

Calcium helps maintain bones and teeth, while iron is needed to make haemoglobin, which carries oxygen in the blood. Magnesium contributes to normal muscle and nerve function. This form of agar contains little fat or salt, with only traces of sugars and saturated fat. Full nutrient figures are in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energía

2 kcal

Energía

7 kJ

Grasa

0.1g

of which saturates

Trace

Carbohydrate

Trace

of which sugars

Trace

Proteína

0.2g

Sal

0.03g

Agua

84g

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)

0.04mg

Niacin (B3)

0.1mg

Vitamin B6

Trace

Vitamina B12

0µg

Ácido fólico

0µg

Calcio

110mg

Hierro

3.5mg

Magnesio

75mg

Phosphorus

8mg

Potasio

20mg

Sodio

10mg

Zinc

2.5mg

Other types of agar

Alimentos

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Agar, dried

16 kcal

1.3g

1.2g

–

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.

Lecturas adicionales y referencias

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

Historial del artículo

La información en esta página está escrita y revisada por pares por clínicos calificados.
  • 3 Nov 2026 | Última versión
  • 3 Nov 2026 | Publicado originalmente