and in the green corner

How much better for you are dark leafy greens than light? We’re breaking it down for you.
Comparison of the differing nutritional content, per serving, of spinach and lettuce types.
| Nutrient | Units | Spinach | Iceberg Lettuce | Romaine Lettuce |
| | ||||
| Water | g | 91.6 | 95.9 | 94.9 |
| Protein | g | 2.9 | 1.0 | 1.6 |
| Fiber | g | 2.7 | 1.4 | 1.7 |
| Calcium | mg | 99.0 | 19.0 | 36.0 |
| Iron | mg | 2.7 | 0.5 | 1.1 |
| Potassium | mg | 558.0 | 158.0 | 290.0 |
| Vitamin C | mg | 28.1 | 3.9 | 24.0 |
| Folate | mcg | 194.4 | 56.0 | 135.7 |