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Boston Lettuce

Boston Lettuce

Description

Boston lettuce, a green, leafy vegetable also known as butterhead lettuce, used primarily in salads. It has soft flexible leaves and a smooth taste. It typically is softer and lighter than iceberg lettuce with thinner, less-prominent veins in its leaves. A good source of roughage, vitamin A and potassium.

Available year-round with peak season November through March.

Caloric Content

1
Calories: 8
Protein: .7 gm
Carbohydrates: 1.4 gm
Fiber:.25 gm
Total fats: .1 gm
Saturated fats: - gm
Unsaturated fats: - gm
Cholesterol: - mg



1. 1 cup, 55 grams

Vitamin Content

1 USRDA
Vitamin A: 5305000 IU
Thiamine: .03 1.7 mg
Vitamin B-2: .03 1.7 mg
Vitamin B-6:.028 2.0 mg
Vitamin B-12: 0 6 mcg
Biotin: .35 300 mcg
Niacin: .2 20 mg
Pantothenic Acid: .1 10 mg
Folic acid: .02 400 mcg
Vitamin C: 4 60 mg
Vitamin E: .22 30 IU



1. 1 cup, 55 grams

Mineral Content

1 USRDA
Calcium: 191000 mg
Copper: .08 2 mg
Iron: 1.1 18 mg
Magnesium: 5 400 mg
Manganese: .4 n/a mg
Phosphorus: 141000 mg
Potassium:145 n/a mg
Selenium: - n/a mcg
Sodium: 5 n/a mg
Zinc: .3 15 mg



1. 1 cup, 55 grams

Amino Acid Content

1
Tryptophan:- gm
Threonine:- gm
Isoleucine:- gm
Leucine:- gm
Lysine:- gm
Methionine:- 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. 1 cup, 55 grams

References

Kirschmann, John D. Nutrition Almanac: Nutrition Search. McGraw-Hill: New York. 1984.

Produce Availability & Merchandising Guide. The Packer. 1989.

United States Department of Agriculture. Composition of Foods: Vegetables and Vegetable Products-Raw-Processed-Prepared. Washington D.C. 1984.