Spirulina provides 4g of protein and 11-15% of the RDA in Vitamin B1, B2 and B3, as well as 21% of the RDA in Copper and 11% of the RDA in Iron, plus smaller amounts of other essential nutrients. Meanwhile, sarsaparilla has many potential benefits including fighting cancer, reducing inflammation, decreasing weight, improving immunity, relieving digestive and kidney issues, and boosting sex drive and muscle mass.