After Sunita Williams came back from space I was watching a podcast and someone asked her what food astronauts eat to stay strong with so less food. That is when I came to know about spirulina. NASA astronauts use it because small amount gives very high protein. 100 grams spirulina has 57 grams protein, egg only has 13 grams. 4 times more protein than egg and it is natural plant. If NASA trusts it, why we are spending money on chemical protein powders with side effects. If someone procures quality spirulina and makes it into tasty powder drinks or snacks, heldful for fitness freaks with growing demand.