Mainstay Emergency Food Rations 1200 Calorie Bars (20 Pakets/case) 20-day Supply Mainstay Emergency Food Rations 1200 Calorie Bars (20 Pakets/case) 20-day Supply Contains no cholesterol or tropical oils. Kosher and it meets the dictates for Halal Each unit contains 3 pre-measured 400 calorie meals US Coast Guard approved, 5 year Shelf Life, Withstands Temperatures of -40 F to 300 F Enriched with vitamins and minerals exceeding the RDA requirements