Re: "purpose" of bromide in kelp

if bromide is voided by larger amounts of iodine, then isn't it possible that since there is bromide in kelp, there is a 'purpose' for it being there? perhaps it's very presence is required by the body, so as to recognize the iodine content as being higher--just as one vague hypothesis.

I'm not discounting the fact that some people might be suited to taking iodine in  therapeutic doses (Lugol's) but--
In nature, it is the 'whole food'  whose value is still little-understood by science. All the parts working together, in synergy. Science is always seeking to reduce things to parts, to extract some element perceived as valuable, and find ways to strengthen it further....

it's a bit of a Godless approach