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Per 100g
Nutrition data source: USDA FoodData Central
Common measurement equivalents in grams
Yes, romaine lettuce hearts are highly nutritious and low in calories. They are an excellent source of vitamins A and K, which are essential for vision and bone health, and their high water content helps with daily hydration.
Romaine hearts provide antioxidants that protect cells from damage and dietary fiber that promotes healthy digestion. They are also rich in vitamin K, which is vital for blood clotting, and vitamin A, which supports immune function.
Absolutely. With only 17 calories per 100g, romaine lettuce is a high-volume, low-calorie food. Its fiber and water content can help you feel full longer, making it an ideal base for weight-management meals.
Yes, romaine lettuce is very keto-friendly. It contains only 3.3g of carbohydrates per 100g, a portion of which is fiber, resulting in a very low net carb count that fits easily into a ketogenic diet.
Yes, romaine lettuce is a natural vegetable and is inherently both gluten-free and vegan. It is suitable for almost all dietary restrictions, including Paleo and Whole30 diets.
Romaine hearts have a mild, slightly sweet flavor compared to darker leafy greens. They are prized for their crunchy, succulent texture, especially in the center ribs, which provides a refreshing bite.
While most commonly eaten raw in salads like Caesar salad, romaine hearts are sturdy enough to be grilled, braised, or lightly seared. Grilling them for 2-3 minutes adds a smoky charred flavor while keeping the center crisp.
romaine lettuce hearts is a versatile ingredient found in cuisines around the world. With 17 calories per 100g and 1.2 grams of protein, it's a nutritious addition to many dishes.
Explore more ingredients in the vegetable category with complete nutrition information.
View all vegetable →Discover 1 recipes featuring romaine lettuce hearts with step-by-step instructions.
Browse recipes →Store romaine hearts in the crisper drawer of your refrigerator. Keep them in a breathable bag or wrap them in a damp paper towel to maintain humidity, which prevents the leaves from wilting and keeps them crisp for longer.
When stored properly, romaine hearts typically stay fresh for 7 to 10 days. You should discard them if the leaves become slimy, develop dark brown spots, or have a noticeable off-odor.
Romaine hearts are the smaller, inner leaves of the lettuce head after the tougher, darker outer leaves have been removed. The hearts are generally sweeter, crunchier, and have a more uniform pale-green color.