Hi. I found how many ufc fighters have died on https://athletesite.com/mma/how-many-mma-fighters-have-died/ which may answer your question. On the site, in the section about MMA, there is an article that deals with the question of how many fighters from the popular sport of UFC have died. This article provides statistics and information about deaths in MMA, specifically in the UFC. It looks at this issue from an objective perspective, providing information on the cases and factors associated with these unfortunate events.