If you are looking to lose weight, the first step is to cut back the amount of calories you take in every day. A 1200 calories diet is a great way to fight fat and shed inches. A 1200 calories diet will give you the right amount of fat, sugar, protein and carbohydrates, allowing you to feel full while still trimming fat from your figure. To get the maximum amount of weight loss from your diet, add in moderate to intense exercise several times a week. Biking, running, swimming and weight lifting are excellent sources of exercise. A 1200 calories diet will help you lose weight quickly.