Keto Food List
Keto Friendly
is tuna keto
Per 100g
Net carbs
Total carbs
Glycemic Index
is tuna keto

Is Tuna Keto-Friendly?

Yes, tuna is keto-friendly due to the low amount of carbohydrates and sugars. You can enjoy this food with other keto options, like salad, eggs, avocado, low-carb crackers, and cheese.


  • Tuna only has 0.08 grams of net carbs per 100-gram serving. This amount makes it perfect for a ketogenic diet, as it won’t disrupt ketosis or stop the fat-burning process. 
  • The glycemic index of tuna is also 0 (a very low GI score). Anything below 55 can prevent high blood sugar levels and encourage the body to produce more ketones.
  • Since this food doesn’t contain enough fiber or healthy fats, you should pair tuna with other keto-friendly dishes. This ensures you’re getting the right amount of nutrients on a keto diet. Some great options are tuna avocado bowls or tuna egg salads. 

Low in Net Carbs 

  • Foods that contain minimal net carbs are excellent for a ketogenic diet. Tuna barely has any carbohydrates, making it suitable for maintaining ketosis in your body. 
  • Due to the lack of carbs and fats, you’ll need to consume other nutrient-dense foods to stay full. Eating tuna alone won’t benefit your overall weight loss progress. 

Low in Healthy Fats 

  • A ketogenic diet requires lots of healthy fats to keep you satisfied. Not getting enough of these fats may cause starvation, leading to symptoms like tiredness and headaches.
  • You should combine tuna with healthy fats to keep meals dense. Common fats for a keto diet include avocado, coconut, olives, high-fiber nuts, and Greek yogurt. 
  • Consuming fats can help maintain the ketosis state in your body. Since your body can’t burn carbs for energy, it needs another source of fuel to keep everything functioning.


  • Tuna is a natural saltwater fish that doesn’t contain added sugars or preservatives. You should aim to buy canned tuna in water instead of high-calorie oils. 
  • This food also has 90 calories, making it great for a weight loss diet. All of those calories are completely healthy and will strengthen ketone production in your body.
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