NOW Foods Chewable C-500 Orange Juice, 100 TabletsNOW Foods Chewable C 500 Orange Juice Antioxidant Protection Naturally Sweetened Natural Orange Juice Flavor Blast of Orange Vegetarian Vegan Kosher Vitamin C is a water soluble nutrient well known for its vital role in immune system function. It is also a potent antioxidant that can protect the body's cells and molecules from damage by free radicals and reactive oxygen molecules generated during normal metabolism and typical environment exposures.