Bladderwrack is a type of seaweed that’s rich in vitamins and minerals, such as calcium, iodine, magnesium, potassium, sodium, zinc, and vitamins A and C.
It’s also high in phytochemicals. These health-promoting plant compounds, which include phlorotannins and fucoxanthin, may help lower oxidative stress — an imbalance between free radical and antioxidant levels in your body.
Bladderwrack is high in fiber, which can support a healthy gut. In particular, it’s high in alginic acid and fucoidans, which have both been shown to have health-promoting properties.