Green Leaf Salad (3 cups) With Cider Vinegar Dressing, Cucumber, Pepper, Onion & Plum Tomatoes = 100kcals

You can eat an awful lot of salad without racking up too many calories, which makes it a good option to fill up on in between meal times if you're looking to lose weight. The combination of fibre and different vitamins and minerals makes it highly nutritious, while the cider vinegar dressing adds a metabolism-boosting kick.