Grapefruit
Description
The grapefruit is a large, yellow-rind citrus fruit of the Citrus Paradisi, also called the grapefruit tree or pomelo. This fruit is particularly high in vitamin C and is a fair source of potassium.
Available throughout the year, with peak supplies from January through April.
Note: Fruit should be firm but springy to the touch, well-shaped and heavy for its size. Relatively heavy fruits generally will be thin-skinned and contain more juice.
Caloric Content
| 1 | 2 | 3 | |
| Calories: | 38 | 76 | 44 |
| Protein: | .75 | .72 | .71 gm |
| Carbohydrates: | 9.7 | 19.6 | 11.16 gm |
| Fiber: | .24 | .41 | .40 gm |
| Total fats: | .12 | .13 | .12 gm |
| Saturated fats: | .017 | .018 | .017 gm |
| Unsaturated fats: | .045 | .047 | .046 gm |
| Cholesterol: | 0 | 0 | 0 mg |
1. Raw - 1/2 cup, 241 grams
2. Canned, Light Syrup - 1/2 cup, 127 grams
3. Canned, Water Packed - 1/2 cup, 122 grams
Vitamin Content
| 1 | 2 | |
| Vitamin A: | 149 | 0 IU |
| Thiamine: | .043 | .048 mg |
| Vitamin B-2: | .024 | .025 mg |
| Vitamin B-6: | .05 | .025 mg |
| Vitamin B-12: | 0 | 0 mcg |
| Biotin: | 3 | - mcg |
| Niacin: | .3 | .309 mg |
| Pantothenic Acid: | .34 | .152 mg |
| Folic acid: | 12.2 | 10.8 mcg |
| Vitamin C: | 41.3 | 27.0 mg |
| Vitamin E: | .26 | - IU |
1. Raw - 1/2 cup, 241 grams
2. Canned, Light Syrup - 1/2 cup, 127 grams
| 3 | USRDA | |
| Vitamin A: | 0 | 5000 IU |
| Thiamine: | .048 | 1.7 mg |
| Vitamin B-2: | .026 | 1.7 mg |
| Vitamin B-6: | .024 | 2.0 mg |
| Vitamin B-12: | 0 | 6 mcg |
| Biotin: | - | 300 mcg |
| Niacin: | .304 | 20 mg |
| Pantothenic Acid: | .146 | 10 mg |
| Folic acid: | 10.7 | 400 mcg |
| Vitamin C: | 26.6 | 60 mg |
| Vitamin E: | - | 30 IU |
1. Raw - 1/2 cup, 241 grams
2. Canned, Light Syrup - 1/2 cup, 127 grams
3. Canned, Water Packed - 1/2 cup, 122 grams
Mineral Content
| 1 | 2 | 3 | USRDA | |
| Calcium: | 14 | 18 | 18 | 1000 mg |
| Copper: | .056 | .084 | .082 | 2 mg |
| Iron: | .1 | .51 | .50 | 18 mg |
| Magnesium: | 10 | 13 | 12 | 400 mg |
| Manganese: | .014 | .009 | .009 | n/a mg |
| Phosphorus: | 10 | 13 | 12 | 1000 mg |
| Potassium: | 167 | 164 | 161 | n/a mg |
| Selenium: | - | - | - | n/a mcg |
| Sodium: | 0 | 2 | 2 | n/a mg |
| Zinc: | .09 | .11 | .11 | 15 mg |
1. Raw - 1/2 cup, 241 grams
2. Canned, Light Syrup - 1/2 cup, 127 grams
3. Canned, Water Packed - 1/2 cup, 122 grams
Amino Acid Content
| 1 | 2 | 3 | |
| Tryptophan: | .002 | .003 | .002 gm |
| Threonine: | - | - | - gm |
| Isoleucine: | - | - | - gm |
| Leucine: | - | - | - gm |
| Lysine: | .019 | .018 | .018 gm |
| Methionine: | .002 | .003 | .002 gm |
| Cysteine: | - | - | - gm |
| Phenylalanine: | - | - | - gm |
| Tyrosine: | - | - | - gm |
| Valine: | - | - | - gm |
| Arginine: | - | - | - gm |
| Histidine: | - | - | - gm |
| Alanine: | - | - | - gm |
| Aspartic acid: | - | - | - gm |
| Glutamic acid: | - | - | - gm |
| Glycine: | - | - | - gm |
| Proline: | - | - | - gm |
| Serine: | - | - | - gm |
1. Raw - 1/2 cup, 241 grams
2. Canned, Light Syrup - 1/2 cup, 127 grams
3. Canned, Water Packed - 1/2 cup, 122 grams
References
Kirschmann, John D. Nutrition Almanac: Nutrition Search. McGraw-Hill: New York. 1984.
Produce Availability & Merchandising Guide. The Packer. 1989.
Rosenthal, S. Fresh Food. E. P. Dutton: New York. 1978.
U.S. Department of Agriculture. Composition of Foods: Fruits and Fruit Juices-Raw-Processed-Prepared. Washington D.C. 1982.
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