6 enchanting vegetables and fruits that make you slimmer when eaten. How to be slim when the summer is coming is what many women are concerned about. When it comes to diet, as long as you eat the right food, you can be slim too. Click the picture to enter the next page. Seaweed: It is a collection of vitamins, not only rich in vitamin A, B, C, but also contains abundant minerals and fiber, which is a "beauty weapon" for weight loss.