Olympic medal-winning Australian swimmer Stephanie Rice, 29, has revealed that switching to a plant-based diet seven years ago has done a world of good to her body.

Stephanie said she tried different diets before settling on her current diet, which helped her improve her immune system. "I had really bad adrenal fatigue and was recovering from my third shoulder operation, so I was really focused on improving my immune system, reducing inflammation and increasing my energy. This naturally evolved to eating predominantly plant-based," Stephanie was quoted as saying by Australia's 9Honey website.