Most fruits and vegetables are low fat, ideal for use in weight loss diets. Eating more fruit and veg is essential both for good health and to help us lose weight. 20 Weight Loss-Friendly Foods You'll Want on Hand The truth is meat is a weight loss-friendly food, because it's high in protein. . have shown that people who eat the most fruit (and vegetables) tend to be healthier than. Ever heard of drinking water to lose weight? The diet tactic actually works, along with eating foods that contain a lot of water, like fruits and veggies.