Video language: Speaking English or English subtitles?


New Member
Hi guys!

I am starting another channel about my fitness and health in a vlogging type of way. Of course, this is an very present subject on Youtube.
However, there are very few vloggers working on this subject. Therefore, I can see this working. But I'm wondering: can I reach viewers from other languages as well if I subtitle my videos? Or is it only attractive to watch for them if it is spoken in English?