Examples of the use of algae by humans.

Algae, due to their high iodine content, are used as raw materials in the preparation of many medicines, including for the treatment of the thyroid gland and some skin diseases. In addition to medicine, algae are widely used in the food industry: seaweed as a vegetable crop, and red and brown algae for the production of gelatin. There is also an early development for the use of algae in energy, thanks to the oil contained in some of their species. The essence of the development is to extract oil from algae and process it for fuel.