How to Build a Balanced Sandwich?

Half the sandwich should contain proteins: omelet, hard-boiled egg, tuna, pastrami, 5% cottage cheese, 5% white cheese, 5% Tzfat cheese, 5% Bulgarian or feta cheese, yellow cheese up to 15% fat.

An eighth of the sandwich should contain fat: 1 teaspoon mayonnaise, 1 tablespoon diluted tahini, a quarter of an avocado, 1 tablespoon hummus, 5 olives.

An eighth of the sandwich should contain vegetables: lettuce, roasted vegetables, baby vegetables, cucumber, carrot, tomatoes.

A quarter of the sandwich should contain carbohydrates: a light roll, a light pita, or 2 slices of light bread.