What is fucoidan?

Fucoidan is a sulfated polysaccharide found in brown algae, a type of seaweed. It is a complex molecule composed of a chain of sugar units, including fucose, galactose, and sulfate groups. Fucoidan is known for its various biological activities, including antioxidant, anti-inflammatory, and antitumor properties. It has also been studied for its potential health benefits, such as reducing blood pressure, improving cholesterol levels, and boosting the immune system. Fucoidan is usually extracted from brown algae and commercially available in various forms, including powders, capsules, and extracts, and is commonly used in traditional medicine and as a dietary supplement.