There are basically four types of algae, based on their color: green, blue-green, red, and brown. Green and blue-green algae are found in freshwater as well as saltwater. Red and brown algae are found ...

The protein in sea lettuce, a type of seaweed, is a promising complement to both meat and other current alternative protein sources. Seaweed also contains many other important nutrients, and is grown ...

Various types of edible seaweed differ according to the precise type of species they belong to, and how they might be used.