I (24M) is worried about my partner's (24F) eating habits. Advice?

My girlfriend (24F) is a great person in every way but her eating habits are pretty unhealthy. She eats a lot of junk food, her diet lacks variety, and she has an over the top sweet tooth.<br><br>I love her and I'm not planning on breaking up with her over this, but I am genuinely worried that her eating habits are detrimental to her health.<br><br>What can I do to encourage her to improve her eating habits?<br><br>**