Eat good food. You will need to recalibrate your tastebuds. A fresh orange is better than orange soda. Grilled chicken tastes more of chicken than breaded and fried. There is a lot of good healthy food, so you shouldn't feel you're denying yourself. Simply-prepared fresh food helped me drop 50 lbs over about a year. Furthermore, i rarely longer crave addictive foods like tater tots and simple carbs.
Fresh. Plenty of fresh fruits and vegetables, fish and lean meats, plenty of low fat diary products, no added salt, make food (e.g. Soups, stews, efc.) from scratch with no added salt, avoid processed foods. Lastly make sure you limit your caloric intake to get to or maintain a healthy body weight (body mass index 23-25 kg/m2).