When I was still taking Levothyroxine, I always waited an hour before coffee and food. Something to think about. I discovered Keto about a year ago. I very quickly embraced a high fat diet, only in the last few months I have finally embraced low carb as well. I had my thyroid markers tested 2 months ago and all my markers were in the normal range. I was shocked. The only thing that can contribute to bringing my thyroid to normalcy was eating a diet full of healthy fats. I weaned myself off Levothyroxine and had my doctor retest last week and still the same. Over the moon to be off meds. Keto is amazing.