Thyroid Disease / Medication

Chamomile has preliminary anxiety research and traditional relaxation use, but evidence is not conclusive and allergy, pregnancy, sedative, and anticoagulant contexts matter. | Passionflower has limited anxiety research and traditional relaxation use; sedation and pregnancy cautions should be reviewed before concentrated products. | Valerian is used for sleep and relaxation, but NCCIH says evidence is insufficient for anxiety and sedation cautions matter. | Caffeine can worsen anxiety, panic, sleep disruption, or heart-racing symptoms in sensitive people or at higher intakes. | Ashwagandha has stress/anxiety study context, but thyroid, pregnancy, autoimmune, liver, sedative, and medication cautions are important.

10 linked items - Persistent anxiety, panic attacks, trauma symptoms, severe insomnia, substance use, medication changes, pregnancy, or thoughts of self-harm need qualified care. Seek urgent or emergency help for thoughts of self-harm, feeling unsafe, severe panic with chest pain or fainting, psychosis, mania, or major behavior changes. Supplements can interact with medicines and should not replace therapy, medication, or urgent mental-health support.

pregnancy/breastfeeding | thyroid disease | autoimmune disease | liver disease | sedatives

Herbs & Botanicals - Evidence: promising

No established toxicity pattern | High-dose supplements can interfere with some lab tests, including thyroid and cardiac troponin tests | Tell clinicians about biotin use before urgent blood tests, especially thyroid or heart-related testing.

vitamin - High-dose biotin can interfere with lab tests, including thyroid and cardiac tests.

Omega-3 supplements are studied for depression, but NCCIH says it is uncertain whether they help depression symptoms. | Saffron has meta-analysis evidence in depressive-symptom contexts, but mood symptoms and antidepressant use require medical care and product/dose review. | Vitamin D status is often discussed in mood contexts, but supplementation should follow ordinary DRI/UL, testing, and safety context rather than broad depression claims. | Ashwagandha may affect stress measures, but depression, antidepressant use, thyroid disease, pregnancy, liver concerns, and sedative use need clinician review.

7 linked items - Depression can be serious. Do not use supplements to replace conventional care or delay seeing a qualified professional. Suicidal thoughts, self-harm thoughts, feeling unsafe, mania, psychosis, severe depression, major behavior changes, or inability to function require urgent or emergency mental-health support.

Health Canada - Acquired 2026-07-26 - Official Reference

Rhodiola is marketed for fatigue and stress resilience, but evidence is product- and outcome-specific and still needs deeper review in this app.

7 linked items - Fatigue can come from sleep debt, anemia, thyroid disease, infection, depression, medication effects, under-eating, overtraining, or chronic disease. Treat this page as a map of related topics, not a cause finder.

Silica is marketed for hair, skin, nails, and connective tissue, but claim-level evidence and product identity need more review before strong wording.

6 linked items - Hair loss and brittle nails can come from genetics, thyroid disease, iron deficiency, autoimmune disease, illness, stress, medications, pregnancy/postpartum changes, or inadequate intake. High-dose biotin can also interfere with lab tests.

Elderberry is traditionally used in seasonal immune products, but raw or improperly prepared plant parts can be unsafe and claim-level evidence still needs review. | Astragalus is used traditionally in immune and vitality formulas, but autoimmune disease, immunosuppressants, transplant medicines, and pregnancy need caution.

7 linked items - Immune claims are often overstated. Autoimmune disease, immunosuppression, transplant medicines, pregnancy, cancer treatment, and serious illness require clinician guidance.

Excess iodine can worsen thyroid dysfunction in susceptible people

Iodine - Some foods and specialty products in small or variable contexts

Dietary estimates vary by food manufacturing and salt practices

Iodine - Some iodized salt programs, Some bread dough conditioners

Thyroid disease and medication contexts require clinician guidance

Iodine - Iodized salt, Multivitamins, Prenatal supplements, Iodine supplements

Avoid high-dose iodine supplementation without professional guidance.

trace_mineral - RDA 150 µg/day

NIH Office of Dietary Supplements - Acquired 2026-07-23 - Official Reference

Thyroid dysfunction | Goiter | Hyperthyroid or hypothyroid symptoms in susceptible people | Thyroiditis risk with high intakes | Seek medical care for neck swelling, severe palpitations, chest pain, marked fatigue, or new thyroid symptoms after high iodine intake.

trace_mineral - Iodine can worsen thyroid problems when intake is too low or too high.

sedatives | thyroid medications

Herbs & Botanicals - Evidence: emerging

blood pressure | low potassium | heart disease | kidney disease | pregnancy/breastfeeding

Herbs & Botanicals - Evidence: traditional use

Can cause loose stools | Separate from some antibiotics, bisphosphonates, and thyroid medications when advised

Magnesium - Supplements, Some laxative products

Saffron is studied for mood-related outcomes, but product, dose, pregnancy, and medication context need deeper review before strong app claims.

7 linked items - Depression, anxiety, panic, suicidality, trauma symptoms, mania, or major behavior changes need qualified care. Botanicals can interact with sedatives, antidepressants, thyroid disease, pregnancy, liver disease, and other conditions.

Food-Pattern Targets - Evidence: established use

Can exceed iodine UL | Thyroid disease and pregnancy contexts need careful review

Iodine - Kelp, Nori, Kombu, Wakame, Seaweed supplements

The margin between adequate intake and excessive intake is relatively narrow; respect the UL.

trace_mineral - RDA 55 µg/day

Hair loss | Brittle nails | Garlic breath odor | Nausea or diarrhea | Skin rash

trace_mineral - Selenium has a narrow safety margin compared with many nutrients, and excess can cause hair, nail, digestive, and neurologic symptoms.

Ashwagandha has thyroid-disease cautions in the catalog and should not be treated as casual use in thyroid contexts. | Licorice can affect potassium, blood pressure, and corticosteroid-related contexts, which can overlap with endocrine medication concerns.

6 linked items - Thyroid disease, thyroid medication, pregnancy, infertility treatment, autoimmune disease, and high-dose iodine or kelp use require clinician guidance. Both too little and too much iodine can be problematic.

Long-term high-dose zinc can interfere with copper status.

mineral - RDA 11 mg/day