Whether you prefer crisp iceberg, hearty romaine, or delicate green leaf, you can rest assured that all types of lettuce are low in calories. While there might be slight variations in nutrient content, they all share the common trait of being incredibly light.
- Raw red leaf lettuce contains 13 kcal per 100g
- Raw iceberg lettuce contains 14 kcal per 100g
- Raw green leaf lettuce contains 15 kcal per 100g
- Raw cos, or romaine, lettuce contains 17 kcal per 100g
Why is lettuce so low in calories? The secret lies in its composition. Lettuce is primarily made up of water. This high water content not only contributes to its low-calorie count but also helps you stay hydrated.
Beyond its well-known low-calorie status, lettuce provides a valuable array of nutritional benefits, including essential vitamins and minerals such as A, C, and K, along with folate and potassium; while not a significant source of fiber, it still contributes to daily fiber intake, supporting healthy digestion; additionally, lettuce contains antioxidants that play a role in protecting cells from damage.
