Cactus Juice – Nutritional Value Cactus juice offers a good dose of nutrition to everyone. Along with admirable levels of potassium, calcium, manganese, copper and iron, it is also replenished with various vitamins and phytonutrients. It is also a rich source of antioxidants, flavonoids, omega 3 fatty acids , amino acids and beta-carotene. Take a look at the table given below for more details: Nopales (Opuntia ficus-indica ), raw [Nutrition value per 100 g.] (Source: USDA) PRINCIPLE NUTRIENT VALUE Energy 16 Kcal