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How many calories are in 50 grams of tuna in water?

3 min read

According to the USDA, a standard 50-gram portion of drained, canned light tuna packed in water contains approximately 43 to 45 calories. This makes tuna a highly popular choice for those tracking their calorie intake due to its low-fat content and significant protein punch.

Quick Summary

A 50-gram serving of canned tuna in water is a low-calorie, high-protein food. Its exact calorie count can vary slightly depending on the tuna species (light vs. albacore), but it is consistently a lean and nutritious addition to any diet.

Key Points

  • Low Calorie Count: 50 grams of drained, canned light tuna in water contains approximately 43-45 calories.

  • High in Protein: A 50g serving provides about 10 grams of high-quality, lean protein, vital for muscle health and satiety.

  • Rich in Nutrients: Tuna is a good source of essential vitamins like B12 and minerals like selenium, which support immune function and metabolism.

  • Versatile Ingredient: It can be easily added to salads, wraps, and pasta dishes for a quick and healthy protein boost.

  • Lower Mercury Option: Chunk light tuna (skipjack) packed in water generally has lower mercury levels than albacore tuna.

  • Beneficial Omega-3s: Despite being low in fat, tuna still contains beneficial omega-3 fatty acids, which are important for heart and brain health.

In This Article

What to Know About Calories in 50g of Tuna in Water

When you're trying to manage your weight or simply maintain a healthy diet, every calorie counts. Canned tuna packed in water is a staple in many pantries for its convenience, affordability, and nutritional value. For a standard 50-gram serving of drained, canned light tuna, the calorie count hovers around 43 to 45 calories. This is an incredibly lean and protein-dense amount of food. The reason for the low-calorie count is that tuna is an animal protein with a low-fat content, and packing it in water (rather than oil) ensures you aren't adding any unnecessary fat or calories to your meal.

Nutritional Breakdown of 50g of Tuna in Water

Beyond just the calorie count, a 50g serving of tuna offers a wealth of other nutrients. Its primary macronutrient is protein, which is essential for building and repairing muscle tissue and keeping you feeling full longer. It also contains important vitamins and minerals. Here's what you can typically expect in a 50-gram portion of drained, light tuna:

  • Protein: Approximately 10 grams
  • Fat: Around 0.5 grams
  • Carbohydrates: 0 grams
  • Vitamin B12: High amounts, supporting red blood cell formation
  • Selenium: A good source, providing antioxidant properties
  • Omega-3 Fatty Acids: Contains small but beneficial amounts of DHA and EPA

Comparison: Tuna vs. Other Protein Sources

To put the nutritional value of 50g of tuna in water into perspective, let's compare it with other common protein sources. This table highlights how tuna stands out as a lean, low-calorie option.

Protein Source (50g) Approx. Calories Protein (g) Fat (g)
Tuna in Water (Drained) 43 10 0.5
Chicken Breast (Cooked) 82 15.5 1.8
Salmon (Cooked) 114 14.5 6.4
Ground Beef (Cooked, 85/15) 140 12 10

As you can see, 50g of tuna in water offers a superior protein-to-calorie ratio, making it an excellent choice for those focused on high-protein, low-fat eating plans. While salmon contains more beneficial Omega-3s, tuna's low-calorie density is a significant advantage for weight management.

How to Incorporate 50g of Tuna into Your Diet

Including this versatile protein into your meals is easy. Here are a few simple and healthy ideas:

  • Tuna and White Bean Salad: Mix drained tuna with white beans, diced red onion, chopped parsley, and a light vinaigrette. This is a fiber and protein-rich meal perfect for lunch.
  • Lettuce Wraps: Skip the bread and use large, crisp lettuce leaves to hold your tuna salad mix. Add some diced cucumber and a squeeze of lemon for extra flavor.
  • Stuffed Bell Peppers: Fill hollowed-out bell pepper halves with a tuna and cottage cheese mixture. Bake until the peppers are tender for a warm, filling dish.
  • Quick Pasta Sauce: Flake tuna into a simple tomato sauce and serve over whole-wheat pasta for a quick, balanced dinner.

Important Considerations: Albacore vs. Light Tuna and Mercury

It's important to note the distinction between different types of canned tuna. The calorie count can vary. Chunk light tuna (usually skipjack) is generally lower in calories than solid white (albacore) tuna. For example, a 50g portion of drained albacore canned in water might have closer to 64 calories. Additionally, smaller species like skipjack tend to have lower mercury levels than larger fish like albacore. The FDA recommends a varied diet and advises a limited intake for certain groups to manage mercury exposure.

Conclusion

For anyone looking for a low-calorie, high-protein dietary staple, 50 grams of tuna in water is an excellent option. At just over 40 calories for light tuna, it provides a lean source of protein, along with key vitamins and minerals, without a high-fat load. Its versatility allows it to be incorporated into a wide range of healthy meals, from quick salads to creative wraps. When choosing canned tuna, remember to check the label for the specific type, as this can affect the nutritional values. Choosing water-packed light tuna is the safest bet for the lowest calorie and mercury content, making it a reliable and healthy part of a balanced diet.

Resources for Further Reading

For more detailed nutritional data on various food types, including different kinds of tuna, you can consult the USDA FoodData Central database. The USDA is a primary source for standardized nutrition information, and its data is used by many nutrition apps and websites worldwide.

USDA FoodData Central

Frequently Asked Questions

Yes, there is. A 50-gram serving of drained light tuna in water contains around 43-45 calories, while the same amount of white albacore tuna in water can have slightly more, closer to 64 calories.

Tuna packed in water is significantly lower in calories and fat than tuna packed in oil. For example, a 5-ounce can of tuna in oil can have over twice the calories of a 5-ounce can in water.

Yes, canned tuna is an excellent source of lean protein for weight loss. Protein promotes feelings of fullness, and because tuna in water is low in calories, it helps create a calorie deficit.

A typical 50-gram serving of drained, canned light tuna in water provides approximately 10 grams of protein.

No, canned tuna packed in water contains virtually no carbohydrates or sugar, making it an ideal protein source for low-carb diets.

Mercury levels vary by tuna species, with chunk light (skipjack) generally having lower levels than white (albacore). Health authorities recommend a varied intake of different fish and limiting consumption for certain populations.

It is generally not recommended to eat canned tuna every day. While healthy, consuming any single food excessively can limit dietary variety. Most experts recommend eating 2-3 servings of fish or shellfish per week.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.