Experts Reveal the Best and Worst Fish for Your Health: What You Need to Know!
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Veronica E.
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As the holiday season winds down and the last of the Thanksgiving turkey is a thing of the past, many of us are ready for a change of pace in our diets.
Fish, known for its nutritional benefits, often rises to the top of the menu. But before you dive into the sea of seafood options, it's important to know which fish are allies to your health and which might not be so friendly.
We at The GrayVine believe that maintaining a healthy diet is a top priority for our community. That's why we’re going beyond the surface to bring you expert advice on which fish should have a regular spot on your plate—and which ones you might want to pass on.
The Best Fish for Your Health
1. Salmon: A Shining Star of the Sea
Salmon is often celebrated by health professionals for good reason. It's packed with omega-3 fatty acids, which are known to support cardiovascular and brain health.
Lauri Wright, a registered dietitian nutritionist and associate professor at the University of South Florida's College of Public Health, highlights the importance of omega-3s in reducing heart disease-related mortality, as well as lowering blood pressure and triglyceride levels.
The anti-inflammatory properties of omega-3s also make salmon a great choice for those managing arthritis.

2. Sardines: Small Fish, Big Benefits
Don’t let their size fool you—sardines are a nutritional powerhouse. Packed with eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), two types of omega-3 fatty acids, sardines offer anti-inflammatory benefits that support heart health.
They’re also an excellent source of calcium, which is crucial for bone health and maintaining a regular heartbeat. In addition, sardines are high in vitamin D and are budget-friendly.
For an easy way to incorporate sardines into your diet, try topping a cracker with mustard and a sardine, or sauté them with garlic, onions, lemon juice, and seasonings to serve over rice.
3. Halibut: The Heart-Healthy Choice
Halibut is another fish that’s packed with health benefits. It’s an excellent source of selenium, a heart-healthy antioxidant that helps fight inflammation and oxidative stress.
Michelle Routhenstein, a New York-based dietitian and owner of Entirely Nourished, also notes that halibut is a great source of vitamin B6, which supports immune, nerve, and liver health.
4. Red Snapper: A Potassium Powerhouse
Red snapper is not only delicious but also a rich source of potassium, which is essential for blood pressure and arterial health. It’s also loaded with protein and B vitamins, making it a nutritious addition to your meal rotation.
The Worst Fish for Your Health
1. Sole: A Risky Catch
While sole might be a popular choice for its delicate flavor, it’s not the best option from a health standpoint. Sole is low in beneficial nutrients like omega-3s, potassium, and magnesium, and it may contain high levels of contaminants.
Its high sodium content relative to potassium could also contribute to increased blood pressure levels.

2. Farmed Tilapia: A Contaminated Choice
Farmed tilapia has come under scrutiny for its potential health risks. According to Routhenstein, it may contain high levels of contaminants, antibiotics, and omega-6 fatty acids, which can be pro-inflammatory and detrimental to your health goals.
3. Shark: High in Mercury, Low in Sustainability
Shark meat is very high in mercury, a neurotoxin that poses significant health risks, especially to pregnant women and children. Additionally, shark populations are declining, making it an unsustainable and potentially harmful choice.
4. Tuna: A Controversial Catch
Tuna is a bit of a mixed bag. It’s a good source of vitamins B6 and B12, which support immune, hormonal, and nerve health. However, it’s not as rich in anti-inflammatory omega-3 fatty acids as other fish and contains high levels of mercury.
Light tuna is a better option than albacore, but it should still be consumed in moderation, particularly by children and women who are pregnant or breastfeeding.
When it comes to fish, the key is to choose wisely. Opt for species that are rich in omega-3 fatty acids and low in contaminants. Remember to check for sustainability as well, ensuring that your seafood choices aren’t contributing to overfishing or environmental harm.
Have you discovered a favorite fish recipe that's both delicious and nutritious? Are you mindful of the environmental impact of your seafood choices? Share your thoughts, recipes, and questions in the comments below. Let’s navigate the waters of healthy eating together, one fish at a time!
Fish, known for its nutritional benefits, often rises to the top of the menu. But before you dive into the sea of seafood options, it's important to know which fish are allies to your health and which might not be so friendly.
We at The GrayVine believe that maintaining a healthy diet is a top priority for our community. That's why we’re going beyond the surface to bring you expert advice on which fish should have a regular spot on your plate—and which ones you might want to pass on.
The Best Fish for Your Health
1. Salmon: A Shining Star of the Sea
Salmon is often celebrated by health professionals for good reason. It's packed with omega-3 fatty acids, which are known to support cardiovascular and brain health.
Lauri Wright, a registered dietitian nutritionist and associate professor at the University of South Florida's College of Public Health, highlights the importance of omega-3s in reducing heart disease-related mortality, as well as lowering blood pressure and triglyceride levels.
The anti-inflammatory properties of omega-3s also make salmon a great choice for those managing arthritis.

Many heart-healthy fish choices are packed with essential nutrients like omega-3s! Image Source: Pexels / Krisztina Papp.
2. Sardines: Small Fish, Big Benefits
Don’t let their size fool you—sardines are a nutritional powerhouse. Packed with eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), two types of omega-3 fatty acids, sardines offer anti-inflammatory benefits that support heart health.
They’re also an excellent source of calcium, which is crucial for bone health and maintaining a regular heartbeat. In addition, sardines are high in vitamin D and are budget-friendly.
For an easy way to incorporate sardines into your diet, try topping a cracker with mustard and a sardine, or sauté them with garlic, onions, lemon juice, and seasonings to serve over rice.
3. Halibut: The Heart-Healthy Choice
Halibut is another fish that’s packed with health benefits. It’s an excellent source of selenium, a heart-healthy antioxidant that helps fight inflammation and oxidative stress.
Michelle Routhenstein, a New York-based dietitian and owner of Entirely Nourished, also notes that halibut is a great source of vitamin B6, which supports immune, nerve, and liver health.
4. Red Snapper: A Potassium Powerhouse
Red snapper is not only delicious but also a rich source of potassium, which is essential for blood pressure and arterial health. It’s also loaded with protein and B vitamins, making it a nutritious addition to your meal rotation.
1. Sole: A Risky Catch
While sole might be a popular choice for its delicate flavor, it’s not the best option from a health standpoint. Sole is low in beneficial nutrients like omega-3s, potassium, and magnesium, and it may contain high levels of contaminants.
Its high sodium content relative to potassium could also contribute to increased blood pressure levels.

Sole: A fish with limited nutritional benefits and potential health risks. Image Source: Pexels / Nadin Sh.
2. Farmed Tilapia: A Contaminated Choice
Farmed tilapia has come under scrutiny for its potential health risks. According to Routhenstein, it may contain high levels of contaminants, antibiotics, and omega-6 fatty acids, which can be pro-inflammatory and detrimental to your health goals.
3. Shark: High in Mercury, Low in Sustainability
Shark meat is very high in mercury, a neurotoxin that poses significant health risks, especially to pregnant women and children. Additionally, shark populations are declining, making it an unsustainable and potentially harmful choice.
4. Tuna: A Controversial Catch
Tuna is a bit of a mixed bag. It’s a good source of vitamins B6 and B12, which support immune, hormonal, and nerve health. However, it’s not as rich in anti-inflammatory omega-3 fatty acids as other fish and contains high levels of mercury.
Light tuna is a better option than albacore, but it should still be consumed in moderation, particularly by children and women who are pregnant or breastfeeding.
When it comes to fish, the key is to choose wisely. Opt for species that are rich in omega-3 fatty acids and low in contaminants. Remember to check for sustainability as well, ensuring that your seafood choices aren’t contributing to overfishing or environmental harm.
Key Takeaways
- Fish offers a variety of health benefits due to its rich content of omega-3 fatty acids, high-quality protein, and various vitamins and minerals, though not all fish provide the same nutritional value.
- Salmon, sardines, halibut, and red snapper are considered some of the best choices for health, offering benefits such as cardiovascular and brain health support, anti-inflammatory properties, and aids in bone, immune, nerve, and liver health.
- Certain fish, like sole, farmed tilapia, shark, and tuna, may pose health risks due to high levels of contaminants, mercury, and potentially pro-inflammatory fatty acids. It’s advisable to limit or avoid consumption of these fish, particularly among vulnerable groups such as pregnant women, children, and breastfeeding mothers.
- Consumption recommendations differ for various types of fish based on their mercury content. Guidelines are provided for light tuna intake, suggesting that children and women of childbearing age should consume it in moderation, following specific amounts to stay within safe limits.
Have you discovered a favorite fish recipe that's both delicious and nutritious? Are you mindful of the environmental impact of your seafood choices? Share your thoughts, recipes, and questions in the comments below. Let’s navigate the waters of healthy eating together, one fish at a time!