The thyroid naturally holds more bromine, manganese, selenium, and tin than nearby muscle and fat, even though these elements aren't directly involved in hormone production, hinting they might have unknown functions in thyroid health.
Evidence from Studies
No evidence studies found yet.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
Whether elevated thyroid concentrations of Br, Mn, Se, and Sn are consistently associated with altered thyroid hormone levels or function across diverse populations.
A systematic review and meta-analysis of all studies correlating thyroid tissue concentrations of Br, Mn, Se, and Sn with serum TSH, T3, T4, and thyroid antibody levels in euthyroid individuals, with standardized measurement protocols and adjustment for confounders.
Whether altering dietary intake of bromine or manganese directly affects thyroid hormone synthesis or secretion in humans.
A double-blind RCT with 100 healthy adults randomized to bromine-supplemented (500 µg/day), manganese-supplemented (10 mg/day), or placebo for 16 weeks, with serial measurements of serum TSH, free T4, and thyroid peroxidase activity.
Whether long-term dietary intake of bromine or manganese predicts changes in thyroid volume or function over time.
A prospective cohort of 1,000 adults with detailed dietary records for bromine and manganese intake, followed for 10 years with annual thyroid ultrasound and hormone testing, adjusting for iodine and selenium intake.
Whether individuals with hypothyroidism or autoimmune thyroiditis have different thyroid concentrations of bromine or manganese compared to healthy controls.
A matched case-control study comparing thyroid tissue concentrations of Br and Mn in 150 patients with Hashimoto’s thyroiditis and 150 euthyroid controls, using archived surgical specimens analyzed by DRC-ICP-MS.
Whether thyroid concentrations of bromine, manganese, selenium, and tin correlate with age, sex, or iodine status in healthy populations.
A cross-sectional analysis of thyroid tissue from 500 euthyroid individuals stratified by age, sex, and iodine status, with concurrent serum iodine and selenium measurements and DRC-ICP-MS analysis.