You need various proteins, vitamins, carbs, etc. Without inventing a miracle diet for the upper middle class or emulating a foreign cuisine you could just eat healthy ish foods until you stop craving sweets & chips (or the like). I crave citric acid (limes, lemons, green apples) & carrots instead of chocolate & when i crave something abnormal I go it eat & since I get cravings for eggs, steak, mushrooms, radishes, chicken, broth, & various fruits I eat cheap & crude examples of my cravings ie. Yesterday had all my normal meals plus a block of feta, a carton of tomatoes, 4 eggs, bell pepper, & an extra half gallon of limeade after my gallon of Lemonade. What I gather from those cravings & my reaction to them is I've been low on calcium, vegetables, cholesterol, & on a high stress day after 3 hours of sleep I needed even more electrolytes than normal.

If you don't eat like an American your cravings will naturally guide you to balance out your diet & not to chocolate cake.