What's a word for someone that is healthy that has a gender neutral, positive connotation?

Hi I’m looking for a word that refers to someone who takes care of their health and physical well being that has a positive connotation and gender neutral. For example someone who reads a lot of books might be called a reader, someone who does a lot of learning might be called a student or learner, etc. there was already a question like this on the website before but it failed to ask for a positive connotation or gender neutrality. The first words that come to mind (and responses to the past question) were fitness fanatic, health nut, fitness freak, etc. but none of these sound very pleasant at all- they make someone sound like a crazy person. Athlete doesn’t work either as it infers the person does a specific sport. Body builder is great but often brings to mind the image of an extremely muscular man. Does anyone here have any suggestions? Thank you!