Diet & Fitness

For short-term use (a few days) to relieve constipation, powdered bladderwrack can be taken in the amount of 1 teaspoon three times per day along with at least 8 oz of water each time.²⁵ For thyroid problems, gastritis, or heartburn, 5 to 10 grams of dried bladderwrack in capsules three times per day has been recommended. Alternately, bladderwrack may be eaten whole or made into a tea using 1 teaspoon per cup of hot water, allowing each cup to sit at least 10 minutes before drinking. Three cups per day of tea can be drunk. No more than 150 mcg iodine should be consumed from all sources, including bladderwrack, per day.²⁶ However, most bladderwrack products do not give any indication of their iodine content. Therefore, anyone considering taking bladderwrack should first consult a physician trained in nutrition and herbal medicine.