Spirulina is a single celled blue-green algae commonly sold as a nutritional supplement in wealthy nations like ours. People rave about it, praising it as a superfood, making incredible claims like "the nutritional value of 1kg Spirulina is equivalent to 1000kgs of assorted fruits and vegetables" (source). Wheatgrass juice is given similar acclaim: "One ounce of Wheatgrass Juice is equivalent to the vitamins, minerals, and amino acids found in 2-1/2 pounds of green leaf vegetables" (source).
Well, I'm sorry to say the hype is unwarranted. Spirulina and wheatgrass are certainly good, but not really any better than green vegetables like broccoli and spinach. 1 lb of fresh spirulina or wheatgrass juice is roughly equivalent to 1 lb of fresh broccoli or spinach.
