Soy: Does it worsen hypothyroidism?
Is it true that people with hypothyroidism should avoid soy?
- Mary / No state given
Answer
There's no evidence that people with hypothyroidism should avoid soy. Standard treatment for hypothyroidism is synthetic thyroid hormone. Theoretically, it's possible that eating very large amounts of soy could impair your body's ability to absorb this medication. In such cases, signs and symptoms of hypothyroidism may persist despite treatment with synthetic thyroid hormone.
Certain foods, medications and supplements — such as high-fiber foods, iron and calcium supplements, and some antacids — may also affect absorption of thyroid medication. To avoid this problem, take your thyroid medication on an empty stomach and separate from such foods, medications and supplements.
If you take synthetic thyroid hormone, consult your doctor before starting any new diets, medications or supplements.


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