Spirulina is a type of blue-green algae that is used as a dietary supplement due to its high nutritional value. It contains a range of vitamins, minerals, antioxidants, and other nutrients, including protein, iron, calcium, magnesium, and B vitamins. Spirulina is also a rich source of gamma-linolenic acid (GLA), an omega-6 fatty acid that is important for maintaining healthy skin and reducing inflammation.
In protein powders, spirulina is often added for its high protein content and nutrient density. It is especially popular among vegans and vegetarians who may struggle to get enough protein from their diets. Spirulina has also been studied for its potential health benefits, including improved immune function, reduced inflammation, and lower cholesterol levels.
Overall, spirulina is considered safe for most people when consumed in appropriate amounts.