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Per 100g
Nutrition data source: USDA FoodData Central
Common measurement equivalents in grams
Yes, canned tuna in water is a highly nutritious, low-calorie food. It is an excellent source of lean protein, providing 25.5g per 100g, and contains essential nutrients like Vitamin B12, Vitamin D, and selenium which support heart and brain health.
A 100g serving of canned tuna in water contains approximately 116 calories and 25.5g of protein. It is virtually carb-free and very low in fat (0.82g), making it one of the most protein-dense foods available.
Yes, canned tuna in water is perfect for a keto or low-carb diet because it contains 0g of carbohydrates. While it is lower in fat than oil-packed versions, it can be mixed with healthy fats like avocado or mayonnaise to fit keto macros.
Naturally, tuna and water are gluten-free. However, some brands may add vegetable broths or flavorings that contain gluten, so it is important to check the label if you have a gluten sensitivity or Celiac disease.
Due to mercury levels found in most predatory fish, it is generally recommended to limit canned tuna consumption to 2-3 servings per week. Light tuna typically has lower mercury levels than Albacore (white) tuna and is a safer choice for more frequent consumption.
Tuna in water is lower in calories and fat, making it better for weight loss. While tuna in oil may retain slightly more Omega-3s, the water-packed version allows you to control the type and amount of fat you add to your meal.
Once opened, you should transfer the tuna from the metal can to an airtight plastic or glass container. It can be stored in the refrigerator for 3 to 4 days; do not leave it in the original can as it may affect the flavor and safety.
Canned Tuna in Water is a versatile ingredient found in cuisines around the world. With 116 calories per 100g and 25.5 grams of protein, it's a nutritious addition to many dishes.
Explore more ingredients in the seafood category with complete nutrition information.
View all seafood →Discover 1 recipes featuring canned tuna in water with step-by-step instructions.
Browse recipes →For most recipes like sandwiches, salads, or tuna cakes, you should drain the water to prevent the dish from becoming too watery. However, the liquid is safe to consume and can be used to add moisture to pet food.
Yes, canned tuna is pre-cooked during the canning process and is completely safe to eat directly from the can. This makes it a convenient, ready-to-eat protein source for snacks or quick meals.
Yes, it is a versatile ingredient for hot dishes like tuna melts, pasta sauces, and casseroles. Since it is already cooked, you should add it toward the end of the cooking process to prevent the fish from becoming overly dry or tough.