According to this site:
https://www.healthline.com/nutrition/turmeric-dosage
Studies typically use doses of 500–2,000 mg of turmeric per day, often in the form of an extract with a curcumin concentration that is much higher than the amounts naturally occurring in foods.
Thank you for that. One popular brand suggests 2 1160mg caps per day. Seems prudent to think about cutting back.