Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Seaweed has been traditionally used, particularly in East Asian cultures, as a health-promoting food for women, including those experiencing menopausal symptoms. The rationale for its use is largely rooted in its high content of minerals (such as iodine, calcium, and magnesium), vitamins, and phytoestrogens—plant-derived compounds with estrogen-like effects. In traditional Chinese and Japanese medicine, seaweed is believed to nourish the body, balance hormones, and support overall vitality during menopause.

However, scientific evidence directly supporting seaweed for treating menopausal symptoms is limited and of low quality. Some studies have examined certain components of seaweed, such as lignans (a type of phytoestrogen), which may help alleviate hot flashes and hormonal fluctuations, but these studies are often preliminary or based on animal models. Seaweed’s iodine content can support thyroid health, which is sometimes affected during menopause, but excessive iodine intake can be harmful, especially for those with thyroid disorders.

Overall, while there is a historical and traditional basis for using seaweed during menopause, robust clinical trials demonstrating clear efficacy or safety are lacking. Women considering seaweed supplements for menopause should consult healthcare providers, especially due to potential thyroid and heavy metal concerns with some seaweed products.

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