The best food for weight loss has high fiber, high protein, and low fat. The fiber is good for weight loss because it passes through you undigested, but makes you feel satiated. The protein is good for weight loss because protein compounds tend to be much more complex than carbohydrate or fat compounds, and so the body has to spend more calories breaking down their more complex compounds. The low-fat aspect is the obvious one — fat has 9 calories per gram versus only 4 calories per gram for carbohydrates or protein, so foods that are low in fat tend also to be lower in calories.
Given these 3 characteristics of the best food for weight loss, what is the very best food for losing weight: BEANS. Beans are high fiber, high protein, and low fat. They are also the one food common to all 5 of the so-called Blue Zones.