Algae are protein-rich species and are considered as an alternative and sustainable source of protein. With millions of species to choose from, companies are beginning to use algae as a protein source for both humans and animals. Certain types of algae, such as green or blue-green, consist of between 40 to 60 % protein and offer good amino acid quality and nutritional benefits. It is now being considered as a potential protein option by many companies.
Micro and macro algae have been used as a sustainable resource for domestic livestock and poultry production due to their diverse nutritional profiles, i.e., carbohydrates, essential fatty acids and amino acids, carotenoids and vitamins.