学校午餐营养计算器公式

## How to Estimate School Lunch Nutrition

### USDA Guidelines for School Meals (K-5)

- Calories: 550-650 per lunch
- Grain: 1-2 servings
- Protein: 1-2 oz equivalent
- Fruit: 0.5-1 cup
- Vegetables: 0.75 cup
- Dairy: 1 cup

### For Packed Lunches

These guidelines provide a helpful target for home-packed lunches. A balanced lunch includes a protein-rich main item, a grain, at least one fruit serving, a vegetable, and a dairy item.

### Calorie Estimates

- 1 fruit serving: approximately 60 cal
- 1 vegetable serving: approximately 25 cal (raw)
- Dairy varies: 80 cal (skim milk) to 150 cal (whole milk)

计算示例

PB&J sandwich (350 cal), 1 apple, half cup carrot sticks, yogurt (100 cal), granola bar (100 cal).

  1. Sandwich = 350 cal
  2. Fruit = 1 x 60 = 60 cal
  3. Veggies = 0.5 x 25 = 12.5 cal
  4. Dairy = 100 cal
  5. Snack = 100 cal
  6. Total = 350 + 60 + 12.5 + 100 + 100 = 622.5 cal