Looks like someone is bent on cutting down some pounds, but then, a 1700 calorie diet plan is a very healthy option, now that it's come to the picture. True to its name, you'll need to tailor your daily food intake and consume a maximum of 1700 calories per day under a 1700 calorie diet. This is slightly lesser than the amount of calories that your body will need, but your body will make up for the small loss by burning some body fat. This way, your body remains healthy and you get to shed off a few fatty pounds!