Not very: Blood group has nothing to do with this. Very large amounts of cabbage can make the thyroid work harder but this is not a real worry nowadays. Ask for clarification.
Answered 9/29/2016
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4 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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