If you’re looking to boost your protein intake with nutrient-rich seafood, this list covers nine fish and shellfish choices dietitians recommend. Whether you’re a fitness enthusiast, someone managing your weight, or just aiming for a balanced diet, these options offer a variety of flavors and textures along with high-quality protein to support your health goals.
1. Salmon
Salmon is a top choice for protein, offering about 22-25 grams of protein per 3-ounce cooked portion depending on the variety. It’s also rich in omega-3 fatty acids, which support heart and brain health. Wild-caught salmon tends to have a better nutrient profile than farmed, with less saturated fat and higher levels of beneficial fats.
2. Tuna
Tuna is a lean fish delivering roughly 25 grams of protein per 3-ounce serving, making it a favorite for muscle-building diets. Varieties like yellowfin and albacore are common and versatile for canned or fresh preparations. Tuna is also low in fat but should be consumed in moderation due to potential mercury content, especially for pregnant women and children.
3. Shrimp
Shrimp packs about 20-24 grams of protein per 3-ounce cooked portion with very low calories and fat. This shellfish is a good source of selenium and vitamin B12, important for immune function and energy metabolism. Because shrimp is low in mercury, it’s often recommended as a safe seafood protein option.
4. Cod
Cod is a mild-flavored white fish offering approximately 19-21 grams of protein per 3-ounce cooked serving. It is low in fat and calories, making it a lean protein choice ideal for weight management. Cod is also rich in vitamin B6 and phosphorus, supporting energy production and bone health.
5. Scallops
Scallops provide around 20 grams of protein per 3-ounce serving, with a delicate texture and mildly sweet flavor. They are low in fat and calories but rich in minerals such as magnesium and potassium, which help regulate muscle and nerve function. Scallops are also a good source of vitamin B12.
6. Halibut
Halibut contains about 22-23 grams of protein per 3-ounce cooked portion and is a firm white fish with a slightly sweet taste. It’s an excellent source of niacin, selenium, and magnesium, nutrients involved in energy metabolism and antioxidant defense. Halibut is moderately low in fat and provides a satisfying protein boost.
7. Crab
Crab meat offers around 17-19 grams of protein per 3-ounce serving and is prized for its sweet flavor and tender texture. It contains important nutrients like zinc and vitamin B12, which support immune health and red blood cell production. Crab is relatively low in fat but can be higher in cholesterol, so portion control is advised.
8. Mackerel
Mackerel is a fatty fish delivering about 20 grams of protein per 3-ounce serving along with high levels of heart-healthy omega-3 fatty acids. It’s also a good source of vitamin D and selenium. Because of its oil content, mackerel has a strong flavor and is often recommended for those seeking both protein and healthy fats.
9. Mussels
Mussels provide roughly 20 grams of protein per 3-ounce cooked portion and are packed with iron, vitamin B12, and manganese. They are low in fat and calories but nutrient-dense, making them a popular seafood option for adding both protein and minerals to the diet. Mussels are also considered a sustainable seafood choice when sourced responsibly.
How to Choose
When selecting fish or shellfish for protein, consider a few key factors: nutrient content, sustainability, and potential contaminants. Look for options that are high in protein but also provide beneficial fats like omega-3s, such as salmon or mackerel. Choose sustainably caught or farmed seafood certified by organizations like the Marine Stewardship Council (MSC) to minimize environmental impact. Pay attention to mercury levels, especially for vulnerable groups—smaller fish like sardines or shellfish like shrimp and mussels often have lower mercury. Finally, freshness and proper storage are essential to ensure safety and flavor.
Frequently Asked Questions
Which fish has the highest protein content?
Fresh tuna and salmon generally have the highest protein per serving, offering around 22-25 grams per 3-ounce portion.
Is shellfish a good source of protein compared to fish?
Yes, many shellfish like shrimp, scallops, and mussels provide comparable protein levels to fish, often with fewer calories and fat.
How much seafood should I eat weekly for protein?
Dietitians typically recommend 2-3 servings (8-12 ounces) of seafood per week to meet protein and omega-3 needs.
Are farmed fish as nutritious as wild-caught?
Farmed fish can vary; some have higher fat content and different nutrient profiles. Wild-caught often has better omega-3 to omega-6 ratios but both can be healthy choices.
Can I eat fish daily for protein?
Eating fish daily is possible if you vary types to minimize mercury exposure and balance with other protein sources.
How should I cook fish to preserve protein?
Cooking methods like baking, grilling, steaming, or poaching preserve protein best without adding unhealthy fats.
Final Thoughts
Incorporating a variety of fish and shellfish into your diet is an excellent way to meet your protein needs while gaining essential nutrients like omega-3 fatty acids, vitamins, and minerals. From the rich flavors of salmon and mackerel to the delicate textures of scallops and mussels, these options offer both versatility and health benefits. Always consider sustainability, freshness, and safety to make the best choices for your body and the planet.
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