How to bring down anti-TPO without supplements?

Hi, i've got hashi and vitiligo. My anti tpo recently lowered to 66UI/ML ( previously 80-72) , my lab limit is <60UI/ML. I don't have any defiency that could help it bring down and for my diet, i don't eat a lot of gluten bc i don't digest it quite well, i only eat fromage in diary products and i never eat past the day limit per day in sugar. I started somatic exercise and meditation to regulate chronic stress.

I was wondering of instead of the aliments to cut, what are the aliments i could eat more?

thx for reading have a good day!