I know that Whole30 can help with hormonal imbalance. I am 33, and have been undergoing fertility treatments and have been suffering from severe hot flashes as well. I am not sure if they are related to my fertility treatment medication or not- my guess is probably, yes. I am not currently on a round of Whole30 but I don't recall having hot flashes like this when I was. I am strictly speaking from personal experience- I am not a medical professional.
I also found this article on Whole30 and menopause that you might find helpful...