What does a 1,600-calorie diet look like compared with what can be a typical day’s worth of food? The differences are dramatic, and point out how little things can add up.
3/4 cup Cheerios (75) with 3/4 cup 2% reduced-fat milk (92) and 1 medium banana (105) (Joe Raedle / Getty Images)

1,600-calorie plan: Breakfast
3/4 cup Cheerios (75) with 3/4 cup 2% reduced-fat milk (92) and 1 medium banana (105)
Calories: 272 (Spencer Weiner / Los Angeles Times)

1,600-calorie plan: Midmorning snack
1 small apple (55)
2 tablespoons of smooth peanut butter (188)
Calories: 243 Running total: 515 (Spencer Weiner / Los Angeles Times)
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1,600-calorie plan: Lunch
1 1/2 cups mixed vegetable salad (33) with 5.8-oz can of light tuna (191)
half an avocado (117) and 6 tablespoons of reduced fat
Italian dressing (68), whole grain roll (100)
Calories: 509 Running total: 1,024 (Spencer Weiner / Los Angeles Times)

1,600-calorie plan: Afternoon snack:
1 cup air-popped popcorn (31)
1 small orange (45)
Calories: 76 Running total: 1,100 (Spencer Weiner / Los Angeles Times)

1,600-calorie plan: Dinner
4 ounces roasted chicken breast (190), 3 ounces fresh broccoli (30)
1 small plain baked potato (128), small mixed vegetable salad with
4 tablespoons nonfat ranch dressing (84), 3.7 ounces fat-free chocolate pudding (60)
Calories: 492 Final total: 1,592 (Spencer Weiner / Los Angeles Times)

And now... what a 2,900-calorie day looks like. (Spencer Weiner / Los Angeles Times)
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2,900-calorie plan: Breakfast
1 glazed doughnut (200), coffee with 2 tablespoons half-and-half (40)
Calories: 240 (Spencer Weiner / Los Angeles Times)

2,900-calorie plan: Lunch
Chicken Caesar salad (with dressing) from Chili’s Grill & Bar (1,010), 12-oz. Coke (143)
Calories: 1,153 Running total: 1,393 (Spencer Weiner / Los Angeles Times)

2,900-calorie plan: Midafternoon snack
1 1/2 -ounce Hershey bar (230)
Calories: 230 Running total: 1,623 (Spencer Weiner / Los Angeles Times)

2,900-calorie plan: Dinner
Two slices of original-crust 14-inch pepperoni pizza from Papa John’s Pizza (620),
mixed vegetable salad with 4 tablespoons Italian dressing (188),
1 cup of Ben & Jerry’s Cherry Garcia ice cream (480)
Calories: 1,288 Total: 2,911 (Spencer Weiner / Los Angeles Times)