Seaweed intake and risk of thyroid cancer: a large prospective cohort study in Japan
Michikawa T, Inoue M, Shimazu T, Sasazuki S, Iwasaki M, Sawada N, Yamaji T, Tsugane S
Published in European Journal of Cancer Prevention
Methodology
Prospective cohort of nearly 53,000 Japanese adults followed for over a decade relating seaweed consumption frequency to thyroid cancer incidence
Key Findings
Daily seaweed consumption was associated with increased risk of papillary thyroid carcinoma in postmenopausal women compared with intake of two or fewer days per week.
Conclusions
High habitual seaweed intake may raise papillary thyroid cancer risk in some groups.
Limitations
Observational design; dietary recall; iodine intake not measured directly.
Supplements Studied
Daily seaweed consumption was associated with increased risk of papillary thyroid carcinoma in postmenopausal women compared with intake of two or fewer days per week.
Related Health Concerns
Study Details
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