Usda, 100 grams

Calories: 42

Carbs: 11g

Fat: 0g

Protein: 0.8g

42

Usda, 0.5 medium grapefruit

Calories: 40

Carbs: 10g

Fat: 0g

Protein: 1g

40

Usda - Fruit, 230 g (1 Cup)

Calories: 97

Carbs: 25g

Fat: 0.3g

Protein: 1.8g

97

Grapefruit, Fresh - Usda Site, 0.5 medium grapefruit

Calories: 40

Carbs: 10g

Fat: 0g

Protein: 1g

40

Grapefruit, 0.5 Med Grapefruit (128g)

Calories: 41

Carbs: 10g

Fat: 0.1g

Protein: 0.8g

41

Usda Website, 0.5 (medium 4" across fruit)

Calories: 41

Carbs: 10g

Fat: 0g

Protein: 1g

41

Generic, 1 whole grapefruit

Calories: 78

Carbs: 20g

Fat: 0.1g

Protein: 1.6g

78

As Per Usda, 1 whole sections and juice

Calories: 104

Carbs: 26g

Fat: 0g

Protein: 2g

104

Usda Database, 1 fruit w/o refuse

Calories: 76

Carbs: 18.3g

Fat: 0.2g

Protein: 1g

76

Grapefruit, Edible Portion, 100 g

Calories: 42

Carbs: 10.7g

Fat: 0.1g

Protein: 0.8g

42