Did you know that seafood is one of the most common foods linked to both incredible health benefits and surprising health risks? According to the Food and Agriculture Organization, seafood provides nearly 20% of the world’s animal protein intake. For older adults, especially those over 60, seafood can play a powerful role in maintaining heart health, brain sharpness, and strong bones. However, not all seafood is created equal. Some types are loaded with toxins, heavy metals, or unhealthy fats that can quietly harm your health. Others, on the other hand, are nutrient powerhouses that can give your body the support it needs to age gracefully.
If you’re over 60, the right seafood choices could be the difference between boosting your longevity and unknowingly risking chronic problems. This article will guide you through the 4 worst seafoods you should never touch and the 4 best ones you should add to your plate. You’ll also learn practical tips for safe seafood shopping, preparation, and portioning—so you can enjoy the benefits without the hidden dangers.

The 4 Worst Seafoods to Avoid After 60
1. King Mackerel
King mackerel may look tempting, but it’s among the fish with the highest mercury levels. Mercury exposure has been linked to memory problems and increased cardiovascular risks—two issues especially concerning for seniors.
2. Swordfish
Swordfish are apex predators, meaning they accumulate mercury over their lifespan. For older adults, eating swordfish regularly can increase the burden on the liver and kidneys while negatively impacting neurological health.
3. Imported Farmed Shrimp
Shrimp can be healthy, but farmed varieties from certain regions are often treated with antibiotics and raised in polluted waters. This increases the risk of chemical residues that could be harmful to those with weakened immune systems.

4. Tilefish
Tilefish from the Gulf of Mexico are another seafood loaded with mercury. In fact, the FDA places tilefish on the “do not eat” list for vulnerable populations, including older adults.
The 4 Best Seafoods to Eat After 60
1. Wild-Caught Salmon
Rich in omega-3 fatty acids, vitamin D, and high-quality protein, salmon supports heart health, reduces inflammation, and may improve cognitive function. Opt for wild-caught varieties over farmed salmon to avoid excess contaminants.
2. Sardines
These small fish are nutrient-dense and low in mercury. Sardines are packed with calcium (great for bone strength), omega-3s, and vitamin B12, which supports nerve function and energy.
3. Trout
Rainbow trout, especially farmed in the U.S., is considered a safe, sustainable, and nutrient-rich choice. It’s lower in mercury than larger predatory fish and provides a strong dose of lean protein.

4. Mussels
Mussels are one of the cleanest and most sustainable seafood options. They’re high in protein, iron, selenium, and omega-3s—nutrients that support cardiovascular and immune health.
Seafood Safety Tips for Seniors
Watch Mercury Levels
Always choose seafood that is low in mercury. Smaller fish tend to be safer, while larger, longer-living predators accumulate higher amounts.
Cook Thoroughly
Seniors are more vulnerable to foodborne illnesses, so ensure seafood is cooked to the proper temperature. Avoid raw or undercooked shellfish.
Balance Portions
A healthy seafood intake for most adults is 2–3 servings per week. Too much—even of the good kinds—can still cause imbalances.
Pair With Vegetables
Enhance nutrient absorption and balance your meal by pairing seafood with leafy greens, whole grains, or citrus-based dressings.

Practical Seafood Chart
Seafood Type | Safe Choice? | Key Benefit | Risk to Avoid |
---|---|---|---|
King Mackerel | No | High in protein | Very high mercury levels |
Swordfish | No | Tasty, firm texture | High mercury, neurological risks |
Imported Shrimp | No | Convenient, low calorie | Antibiotics, chemical residues |
Tilefish | No | Protein source | Among highest mercury content |
Wild Salmon | Yes | Omega-3, vitamin D, brain health | Avoid farmed sources when possible |
Sardines | Yes | Calcium, omega-3, vitamin B12 | Strong flavor may not suit everyone |
Trout | Yes | Lean protein, low mercury | Ensure trusted farm sources |
Mussels | Yes | Iron, selenium, omega-3 | Avoid raw mussels |
Real-Life Example
Linda, a 67-year-old retiree, used to eat swordfish weekly believing it was a healthy protein choice. After learning about mercury risks, she switched to salmon and sardines. Within months, she noticed better energy, easier digestion, and improved cholesterol levels. Her story reflects how small shifts in seafood choices can lead to big improvements in quality of life.
Conclusion
Frequently Asked Questions
Why should seniors avoid high-mercury fish?
Because mercury can build up in the body, affecting memory, kidney function, and heart health.
What’s the safest seafood option for people over 60?
Wild-caught salmon and sardines are two of the best options due to their nutrient density and low mercury.
Is shrimp safe?
Yes, if it’s wild-caught or responsibly farmed. Imported farmed shrimp can carry risks.
How much seafood should I eat per week?
Most experts recommend 2–3 servings of low-mercury seafood per week for older adults.
Making the right seafood choices after 60 is not about giving up flavor—it’s about gaining health. By avoiding risky, high-mercury fish and focusing on nutrient-packed, safe options, you can enjoy delicious meals while protecting your body as you age.
Disclaimer: This article is for informational purposes only and does not replace professional medical advice. Always consult your healthcare provider for personalized guidance before making dietary changes.