I’ve done some research and found that broccoli, cauliflower, brussels sprouts and some other foods I don’t eat often can have a negative effect on thyroid function, as can caffeine. The caffeine could be a problem because I work shifts and drink coffee all day (and night).
Will the caffeine in HOT-ROX negatively effect my thyroid function?Should I try something like Spike for alertness and switch to decaf? Will mixing the HOT-ROX and Spike make each of them less effective? And, finally, can supplementing with L-Tyrosine be useful?[/quote]
The caffeine in HOT-ROX will not negatively affect thyroid function. The amount in HOT-ROX is very small to begin with.
I would not take HOT-ROX and Spike concurrently.
In terms of your condition, I have not seen any data supporting the idea that tyrosine would be of any benefit.