When to take it
In the morning with food.
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MineralsWeak evidence
Thyroid support complex
Also known as: thyroid support blend
These are blends of nutrients and herbs aimed at the thyroid – typically iodine (often from kelp), selenium, zinc, L-tyrosine and sometimes ashwagandha or guggul. Composition varies widely, so quality and suitability depend on the label.
What it is used for
- normal thyroid function in iodine or selenium deficiency – moderate evidence for the nutrients themselves (EFSA claims), weak for blends
- energy and metabolism – weak evidence without a deficiency
Forms and how they differ
iodine (potassium iodide / kelp)
kelp has variable iodine content
selenium (selenomethionine)
supports hormone conversion
L-tyrosine
a hormone building block, unnecessary with adequate protein
herbal additions
ashwagandha and guggul may affect hormone levels
Pairs well with
A diet with iodised salt, fish and eggs.
Do not combine / separate
Keep at least a 4-hour gap from levothyroxine; do not combine with other iodine or selenium supplements without adding up the total.
Watch out for
With thyroid disease (Hashimoto's thyroiditis, Graves' disease, nodules) or thyroid hormone treatment, use only after consulting your doctor – excess iodine can worsen the condition. During pregnancy or breastfeeding, with kidney or liver disease, or when taking medicines, consult your doctor.
Safety
The EFSA tolerable upper levels are 600 µg a day for iodine and 255 µg a day for selenium from all sources. Do not exceed the label dose.
Practical tip
Have your TSH and thyroid hormones checked first – a supplement does not replace diagnosis.
Products containing Thyroid support complex 1
Thyroid support complexblend
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence
Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.
Combination check
Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.
Check Thyroid support complex with othersWhich supplements do you actually need?
Fénix Methode picks them from your blood results and schedules when to take what – no needless purchases.
From the same group
Bone support blendModerate evidenceBoronWeak evidenceCalciumModerate evidenceChromiumWeak evidenceCopperWeak evidenceElectrolytesModerate evidence
Important notice
This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.