Iswaris superfood Chlorella is a nutrient-rich green microalgae. It provides protein, vitamins, and minerals. Add it to smoothies or meals for a nutritional boost. Composition Chlorella powder. Instructions for use Mix one teaspoon of chlorella with water or juice. Drink immediately and then follow with an additional glass of water. Pharmaceutical advice Start with a small amount of chlorella and gradually increase the dosage based on your tolerance.