Kelp
Laminaria spp.
A nutrient-dense seaweed (iodine, minerals) eaten as food and used for thyroid/metabolism support.
Traditional use (tcm, household): A nutrient-dense seaweed (iodine, minerals) eaten as food and used for thyroid/metabolism support.
A nutrient-dense seaweed (iodine, minerals) eaten as food and used for thyroid/metabolism support.
Active constituents are under study; evidence ranges from traditional use to preliminary human trials.
- A nutrient-dense seaweed (iodine, minerals) eaten as food and used for thyroid/metabolism support.
Evidence strength: limited human.
- See the evidence level above
- Excess iodine can disrupt the thyroid and may concentrate heavy metals/arsenic; moderate intake only.
- Thyroid disease without advice
- Pregnancy (high doses)
Excess iodine can disrupt the thyroid and may concentrate heavy metals/arsenic; moderate intake only.
May interact with prescription medications — review with a clinician if you take any.
Use caution in pregnancy, breastfeeding, for children, and with chronic disease unless cleared by a clinician.
Choose reputable, tested suppliers; correct identification is essential for wild-harvested plants.