How does the concentration of iodine in powdered kelp typically compare to the RDA based on the amount found in one gram?

Answer

One gram of powdered kelp can deliver approximately $200 ext{ extmu}g$ of iodine.

The iodine concentration in powdered kelp demonstrates how easily concentrated forms exceed safe levels, even in relatively small measurements. While the general recommended dietary allowance (RDA) for iodine is approximately $150 ext{ extmu}g$ per day, the textual evidence indicates that consuming just one gram of the powdered form of kelp can easily supply around $200 ext{ extmu}g$ of iodine. This dosage alone surpasses the established RDA, illustrating that users who treat powdered kelp casually, without rigorously tracking the amount, can routinely place themselves above recommended limits and into the range where thyroid issues may arise.

How does the concentration of iodine in powdered kelp typically compare to the RDA based on the amount found in one gram?
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