Optimal Superfood Nutrition From the Purest Source AquaSource Algae is an extremely rich and pure source of key nutrients, comprising over 60% protein. It is high in Beta Carotene, a valuable antioxidant, as well as Vitamin B12. It is an excellent source of iron and other essential minerals. AquaSource Algae is from nature – NOT from a synthetic source. It is fully digestible and highly assimilable. A great nutrition source for vegetarians as well as non-vegetarians.