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Grapefruit juice, unsweetened

Unsweetened grapefruit juice is the liquid obtained from grapefruit. The figures cover juice sold in cartons, cans and bottles, as well as frozen juice. It consists mainly of water, with carbohydrate supplied as sugars. Per 100g, it provides 140 kJ of energy, 8.3g of sugars and 31mg of vitamin C.

Vitamin C supports normal immune function and helps the body absorb iron from plant foods. Unsweetened juice still contains sugars, which contribute to energy intake, and it provides only trace amounts of fibre. Grapefruit juice can interact with some medicines, increasing their levels in the blood and the risk of side effects. Full nutrient figures are shown in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

33 kcal

Energy

140 kJ

Gordura

0.1g

of which saturates

Trace

Carbohydrate

8.3g

of which sugars

8.3g

Fibra

Trace

Proteína

0.4g

Sal

0.02g

Álcool

0g

Água

89g

Colesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

Trace

Vitamina D

0µg

Vitamina E

0.19mg

Vitamina C

31mg

Thiamin (B1)

0.04mg

Riboflavin (B2)

0.01mg

Niacin (B3)

0.2mg

Vitamina B6

0.02mg

Vitamina B12

0µg

Ácido Fólico

6µg

Cálcio

14mg

Ferro

0.2mg

Magnésio

8mg

Phosphorus

11mg

Potássio

100mg

Sódio

7mg

Zinco

Trace

Copper

0.01mg

Selenium

1µg

About these figures

Values are per 100g of the food as described (50 samples; cartons, canned, bottled and frozen). "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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  • 4 Nov 2026 | Última versão
  • 3 Nov 2026 | Publicado originalmente