One Nutrition Premium Power Greens (100g). Super green and super good, our nutritional powerhouse packs a punch.. Naturally energy boosting. Nutrient rich super food blend. Premium leaf juice powder. Each serving of Power Greens provides a powerful blend of green foods including: spirulina, wheatgrass, barley grass, broccoli, kale and chlorella. Power Greens powder can be mixed with water, juice, protein shakes and added to porridge or yoghurt. For best results take just before or after exercise.