Fried fish can actually be a decent source of protein and omega-3 fatty acids, which are essential for heart and brain health.

However, the frying process significantly reduces the omega-3 content.

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The type of oil used for frying plays a major role in the healthiness of fried fish.

Oils high in unsaturated fats, like olive or avocado oil, are better choices than those high in saturated or trans fats.

Battered or breaded fried fish can have double the calories and fat compared to plain fried fish, due to the additional coatings.

Regularly consuming fried fish has been linked to an increased risk of heart disease and stroke, likely due to the high saturated and trans fat content.

The cooking temperature and duration can impact the formation of harmful compounds like advanced glycation end products (AGEs) in fried fish, which may increase inflammation.

Fried fish tends to have less vitamin D compared to baked or grilled fish, as this nutrient is sensitive to high heat.

Some studies suggest that the mercury content in certain types of fish, like tuna and swordfish, may increase when the fish is fried due to the removal of moisture.

Substituting baked or grilled fish for fried fish can reduce calorie and fat intake by up to 50% or more, without sacrificing the nutritional benefits of the fish.

Marinating fish in acidic ingredients like lemon juice or vinegar before frying may help reduce the formation of potentially carcinogenic compounds.

The type of fish used also matters - oily fish like salmon and mackerel retain more of their healthy omega-3s even when fried, compared to leaner white fish.

Fried fish may be a good option in moderation for those following a ketogenic or low-carb diet, as it can provide protein without the carbs from breading or batter.