Clean Spirulina is cultivated in fresh potable water from Hawaiian aquifers and ultra-pure, deep ocean water containing 94 trace minerals & elements. A daily intake of 3 grams per day can be obtained with six 500 mg tablets per day.
If you have never taken BlueGreen Algae (BGA), then BioExperience® suggests that you start with one or two tablets per day. After you are comfortable with small amounts of BGA, slowly increase to the suggested maximum of 3 grams per day for BGA.
Bachstettler, Adam D. et al. (2010) Spirulina Promotes Stem Cell Genesis and Protects against LPS Induced Declines in Neural Stem Cell Proliferation. Plos One. Available: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2864748/
Ku, C.S., Yang, Y, Park, Y, & Lee (2013) Health Benefits of Blue-Green Algae: Prevention of Cardiovascular Disease and Nonalcoholic Fatty Liver Disease. Journal of Medicinal Food 2013 Feb; 16(2): 103-111. Available: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3576896/