Chlorella – This fresh water algae is packed with protein, Vitamin A, B2, B3, Iron, Magnesium, and Zinc, and helps with detoxification. Tastes AWFUL but this is seriously good for you. Comes in powder form or supplements. Most smoothies will mask the taste, but you can slowly increase your “dose” until you’re used to it. J Very similar to spirulina, another blue-green algae (which also comes in supplements or powder).