Hi Cindy
In general, unless you are using a kelp that has been tested and has a guaranteed analysis, the issue is quality control. You need ot know how much iodine you are actually getting. Additionally, some products contain contaminants.
This is why ECIR recommends Ocean K (Uckele) or Source.
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Nancy C in NH
ECIR Moderator 2003
ECIR Group Inc. President/Treasurer 2019-2020
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