These types of fish are delicious and nutritious, however, if you buy fish that is not farmed or eat too much, it will be harmful to your body.

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Farmed salmon

This is a famous type of fish that contains a lot of omega-3 and omega-6, so many mothers buy it for their children to eat, but if it is farmed salmon, it will be fed a lot of fat and industrial food to make the fish bigger. Therefore, they contain a lot of calories and saturated fat but few minerals.

Moreover, the ratio of omega-3 and omega-6 in farmed salmon is also lower. Meanwhile, if the salmon farm does not ensure hygiene, the salmon will also be contaminated with toxins such as dioxin and PCB.

Tuna

Although tuna is rich in vitamin D, omega-3 acid, calcium, iron, etc., according to experts, the mercury content in tuna is 7 times higher than other types of fish that contain a lot of mercury. Therefore, it is best to eat only moderate amounts to avoid harming your health.

Tilapia

Tilapia contains many harmful fatty acids similar to lard, so eating a lot can increase blood cholesterol levels.

Sea bass

This is a type of fish that contains very high levels of mercury. So you can still add sea bass to your diet, but adults should only eat 200g/month, children 100g/month.

Swordfish

This is a type of sea fish that contains high levels of mercury. Eating too much will increase the risk of methylmercury poisoning, so mothers should limit buying it to prepare for their families.

Catfish

Because catfish can grow to very large sizes, many fish farmers feed their catfish growth hormones to promote their growth. However, these hormones are harmful to health.