Do you want something reputable or do you want to just publish it to publish it? If the former, I suggest you go to the library. Look at the medical/health professional journals. You can also send it to the mainstream magazines like Muscle/Fitness.
If you're afraid of rejection or being refuted, then just self publish and be done with it. Buy a domain like "bestmedicaladvice.fm" or something. Then just post your article.
-This message does not mean to imply that all self pub's are afraid of rejection or whatever other silly things people think
