The New York Times estimates that a week's worth of food costs the average American adult a grand total of $49. Yes, only $49 a week, Monday through Sunday including breakfast, lunch and dinner. And that doesn't mean junk food is the best option for people on a budget like is commonly perceived as cheap. How then can it be done - eating a healthy on a low budget? By playing the servings-per-dollar game. The following are 10 cardinal rules of eating healthy on a budget: 1. Eat at home and brown-bag your lunches. 2. Cook meals from scratch. 3. Learn to prepare freezer-friendly make-ahead lunches. 4. Keep a meal planner and updated fridge and pantry lists. 5. Cross-reference your shopping list with #4. 6. Think seasonal. 7. Eat more plants. 8. Get creative with your proteins. 9. Buy these (judiciously) in bulk: freezables, pantry staples, and meal bases with long shelf lives. 10. Buy generic.