USDA USDA USDA http://www.ars.usda.gov/News/docs.htm?docid=23199 vitamins A, C, E and K Dark-green leafy vegetables reduced risk of cancer, heart disease and inflammation USDA http://www.ars.usda.gov/News/docs.htm?docid=23199 USDA: Dark Green Leafy Vegetables “Dark Green Leafy Vegetables: USDA ARS.” USDA USDA http://www.ars.usda.gov/News/docs.htm?docid=23199 http://www.ars.usda.gov/News/docs.htm?docid=23199 Agricultural Research Service http://www.ars.usda.gov/News/docs.htm?docid=23199 USDA Dark Leafy Green Vegetables may lower the risk of stomach, breast and skin cancer http://www.ars.usda.gov/News/docs.htm?docid=23199 significant amount of vitamin K http://www.ars.usda.gov/News/docs.htm?docid=23199 USDA Dark Leafy Green Vegetables http://www.ars.usda.gov/News/docs.htm?docid=23199 USDA leafy, dark greens http://www.ars.usda.gov/News/docs.htm?docid=23199 Vitamin K US Department of Agriculture The US Deparment of Agriculture United States Department of Agriculture http://www.ars.usda.gov/News/docs.htm?docid=23199 U.S. Department of Agriculture http://www.ars.usda.gov/News/docs.htm?docid=23199 Vitamin K