Applied Nutrition Critical Green is a multivitamin product that is an excellent source of natural vitamins and nutrients found in vegetables and fruits. By eating it, you get a balanced combination of vitamins, minerals and other nutrients that support general health and physical functioning. Features of Applied Nutrition Critical Greens Multivitamin blend. Improve digestive health. Regulating blood sugar level. Promotes healthy kidney, bladder and prostate functions. antioxidant. Free of condensate, sugar or sweeteners. Fresh and natural taste.