[FONT=georgia, bookman old style, palatino linotype, book antiqua, palatino, trebuchet ms, helvetica, garamond, sans-serif, arial, verdana, avante garde, century gothic, comic sans ms, times, times new roman, serif]The best and the only way of losing weight is exercise and There are really only two requirements when it comes to exercise. One is that you do it. The other is that you continue to do it[/FONT].
Moreover try to calculate your calories intake and consumption, if you educate yourself how much running or exercise you need after eating paraths or junk food, i believe you will try to cut off your diet.
At the end i will suggest, first of all try to find out how much calories you taking per day. they should not be more than 2000, just google whatever you eating for exact calories.
Here a link, it will inform you that how many calories you loose by doing different kind of exercies.
http://www.fitwatch.com/database/searchexdb.html