A healthy diet will naturally prevent you from getting fat.
When eating salad, you should pay attention to many things. It is enough to choose 4-6 kinds of materials. Too many kinds are not conducive to absorption. It's best to match it properly. For example, you can put some coarse grains such as corn in the vegetable salad.
The reason why some people say that eating salad will make you fat is entirely because of salad dressing. If you are afraid of being fat, you can put less, buy low-fat or light-flavored, or make it yourself, depending on what flavor you like.