Parts used: Whole plant, which is a common seaweed Properties Adaptogen, antibiotic, anti-hypothyroid, anti-inflammatory, anti-rheumatic, blood tonic, diuretic (mild), endocrine gland stimulant, nutritive, laxative, metabolic stimulant, stimulates the circulation of lymph Primary nutrients One of the richest sources of minerals (micro-nutrients) chiefly copper, iodine, manganese, silicon, sodium, sulphur, zinc Bladderwrack, or Kelp, has proved most useful in the treatment of underactive thyroid glands and goitre. Through the regulation of thyroid function there is an improvement in all the associated symptoms. Where obesity is associated with thyroid trouble, this herb may be very helpful in reducing excess weight. Bladderwrack has a reputation in helping the relief of rheumatism and rheumatoid arthritis, both used internally and as an external application upon inflamed joints. Bladderwrack is a gentle metabolic stimulant, and useful in fatigue and convalescence.