Tilapia contains approximately 20 grams of protein per 100 grams raw. A 3-ounce raw portion provides about 17 grams, and a 4-ounce raw portion provides approximately 23 grams. The result changes depending on portion size and whether the fish is weighed raw or cooked.
Tilapia contains approximately 20 grams of protein per 100 grams when weighed raw. That works out to about 17 grams in a 3-ounce raw portion and approximately 23 grams in a 4-ounce raw portion.
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The exact amount varies with the fish product, portion size, and whether you weigh the tilapia before or after cooking. Raw and cooked weights should not be treated as interchangeable.
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Protein in common portions of tilapia
| Portion | Approximate protein | How the estimate is calculated |
|---|---|---|
| 100 grams raw | 20 grams | Based on approximately 20.1 grams per 100 grams raw |
| 3 ounces raw, about 85 grams | 17 grams | 85 × 0.201 |
| 4 ounces raw, about 113 grams | 23 grams | 113 × 0.201 |
| One 116-gram raw fillet | 23 grams | 116 × 0.201 |
These are estimates converted from a raw tilapia nutrition reference. A package label should take priority when the product is breaded, marinated, coated, packed with added water, or sold with sauce.
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Does cooking change the protein in tilapia?
Cooking does not create additional protein, but it changes the fish’s water content. As moisture evaporates, the cooked fish can contain more protein per 100 grams by weight than raw fish. This is a concentration effect, not an increase in the total protein originally present.
For the clearest estimate, weigh tilapia in the same state—raw or cooked—as the nutrition entry you are using. If you weigh a cooked fillet but apply a raw value, the calculation may be misleading. USDA FoodData Central separates foods by preparation state, serving measure, and gram weight, so choose an entry that matches what is on your scale.
How to calculate the protein in your portion
- Weigh the edible fish. Use grams when possible. Do not include packaging, bones, or parts you will not eat.
- Identify the weighing state. Note whether the tilapia is raw or cooked.
- Match the nutrition entry. Use a raw entry for raw fish or a cooked entry for cooked fish.
- Apply the proportion. For the raw reference, multiply the fish’s weight in grams by 0.201.
For example, a 150-gram raw portion would provide approximately 30 grams of protein using the raw estimate: 150 × 0.201 = 30.15 grams.
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A digital kitchen scale is useful when you want to match your actual portion to a nutrition database entry. It improves the portion estimate, but it cannot eliminate differences among fish products or preparations.
Why “one fillet” is not a precise serving
Tilapia fillets vary in size. One fillet may weigh considerably more or less than another, so “one fillet” is less reliable than a gram or ounce measurement. Frozen products may also contain added water, while breaded or sauced products include ingredients that change the nutrition of the finished serving.
If you are shopping for the food discussed here, a package such as 12-ounce tilapia fillets can provide a convenient starting point, but the package’s own Nutrition Facts panel is the correct source for that specific product. Retail price and availability can depend on the selected store, location, and date.
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Is tilapia a good protein source?
Tilapia is a relatively lean fish that can contribute substantial protein without requiring a large portion. Whether it fits a particular diet depends on the full meal and the person’s needs. Breading, frying, creamy sauces, and salty marinades can add calories, fat, sodium, or carbohydrates without changing the basic protein content of the fish itself.
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What does “Best Choice” mean for tilapia?
The FDA and EPA list tilapia as a “Best Choice” fish in their advice about mercury exposure. That classification is particularly relevant to people who are pregnant or may become pregnant, breastfeeding, and children. It is a mercury-consumption category—not a blanket endorsement of every tilapia recipe or product.
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The classification does not tell you how much protein, sodium, fat, or calories are in a particular package. Preparation still matters, and FDA/EPA fish advice does not replace individualized medical advice.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.If you are considering tilapia for a dog or cat
The protein figures above describe tilapia as a food, not an appropriate serving recommendation for a pet. Dogs and cats have different nutritional requirements, and a tilapia portion should not replace a complete, balanced pet food unless a veterinarian or veterinary nutritionist has directed you to do so.
Do not use the human protein estimate to calculate a pet’s daily protein requirement. If tilapia is being offered to a pet, discuss the portion, preparation, frequency, and the animal’s medical history with a veterinarian. The FDA’s “Best Choice” mercury category is human fish-consumption guidance and should not be interpreted as a complete safety assessment for every pet or preparation.
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Bottom line
Tilapia has about 20 grams of protein per 100 grams raw, or roughly 17 grams in a 3-ounce raw portion. The number changes with portion size and whether the fish is weighed raw or cooked. For the most accurate result, weigh the edible portion and match its preparation state to the nutrition entry or package label.
Frequently Asked Questions
How much protein is in 100 grams of tilapia?
Approximately 20 grams of protein are in 100 grams of raw tilapia. A 3-ounce raw portion contains about 17 grams, while a 4-ounce raw portion contains approximately 23 grams.
Does tilapia have more protein after cooking?
Cooking does not create protein, but it removes water. As a result, cooked tilapia may appear to have more protein per 100 grams by weight. Match a cooked weight with a cooked nutrition entry rather than applying a raw value to it.
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How do I calculate the protein in my tilapia portion?
Weigh the edible tilapia in grams, identify whether it is raw or cooked, and use a nutrition entry in the same state. For the raw estimate used here, multiply the portion’s weight in grams by 0.201.
Is tilapia safe for dogs and cats?
Tilapia is classified by the FDA and EPA as a “Best Choice” fish for mercury guidance. That classification is human fish-consumption advice and is not a complete feeding recommendation for dogs or cats. Ask a veterinarian about portions and preparation for a pet.
The Bottom Line
Tilapia provides approximately 20 grams of protein per 100 grams raw, or about 17 grams per 3-ounce raw portion. Weigh the fish raw or cooked according to the nutrition entry you use, because cooking changes water content and therefore the protein concentration per 100 grams.
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