Spirulina has been used as food for centuries. Several toxicity tests including some sponsored by the United Nations have proven its safety. Moreover, it has been produced commercially over the past 30 years and consumed by thousands of people without problem. Recently, two companies in the United States have affirmed their Spirulina as GRAS by scientific procedures and after FDA review. In addition, the production process and the product are regulated by applicable laws and regulations to make sure that the product is safe and meets label specifications. Numerous studies show that it has a good nutritional profile in addition to containing some phytonutrients that have potential health benefits as discussed in the reviews in this book.
The technology of Spirulina production has also advanced in the past 30 years, resulting in better quality of product at relatively lower cost. Spirulina has attracted the attention of researchers for many years, as shown by the thousands of publications in its various aspects. More and more information is being made available about its biology, biotechnological application, and health application and even in what seem to be remote applications like biofuel production and as a life support system in space exploration. This interest will no doubt continue. Research along these lines will be rewarding both socially and professionally.
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