Seafood

Fish

Health
ScoreA

Fish is a lean protein source rich in omega-3 polyunsaturated fats, vitamins, and minerals essential for cardiovascular and cognitive health. Its nutrient density and low caloric content make it a cornerstone food for longevity-focused nutrition.

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Why Fish scores 79

Nutrient density35

Protein quality14

Fiber content0

Healthy fats5

Bioactive compounds12

Glycemic impact10

Top nutrients

% Daily Value per 3 oz (85 g)

Selenium 79%Vitamin B12 65%Niacin 31%Vitamin B6 20%Phosphorus 17%

Nutrition

per_100g

Calories

9.6g

Protein

4.5g

Carbs

1.9g

Fat

Fiber

Health benefits

Cardiovascular disease risk reduction

strong evidence

Omega-3 fatty acids (EPA/DHA) reduce triglycerides, lower blood pressure, decrease platelet aggregation, and reduce arterial inflammation, collectively lowering cardiovascular mortality

Cognitive function and neurodegenerative disease prevention

strong evidence

DHA comprises ~20% of cerebral gray matter; omega-3s support synaptic plasticity, reduce neuroinflammation, and protect against amyloid-beta accumulation associated with Alzheimer's disease

Anti-inflammatory response

moderate evidence

EPA and DHA are substrates for specialized pro-resolving mediators that actively resolve inflammation rather than simply suppress it, reducing chronic disease risk

Healthy aging and muscle preservation

moderate evidence

Complete protein with all essential amino acids stimulates muscle protein synthesis; bioactive compounds in fish may preserve muscle mass with aging (sarcopenia prevention)

Metabolic health and insulin sensitivity

moderate evidence

Omega-3 fatty acids improve cell membrane fluidity affecting insulin receptor signaling and reduce hepatic lipid accumulation

Pairs well with

·Pair with leafy greens (spinach, kale) because vitamin K and antioxidants enhance omega-3 anti-inflammatory effects and support cardiovascular health synergistically
·Pair with citrus (lemon, lime) or tomato because vitamin C enhances non-heme iron bioavailability from fish, improving mineral absorption efficiency
·Pair with extra virgin olive oil because both contain omega-3s and polyphenols with complementary anti-inflammatory mechanisms; olive oil's antioxidants protect fish lipids from oxidation
·Pair with legumes (beans, lentils) because fish provides complete protein while legumes add fiber and polyphenols, creating a complete longevity-supporting meal structure

Practical tips

·Best timing: midday
·Choose fatty fish varieties (salmon, mackerel, sardines, herring) at least 2-3 times weekly to maximize EPA/DHA intake; whitefish provides protein but minimal omega-3s
·Purchase wild-caught when possible; wild fish contain higher omega-3 concentrations and lower contaminant levels than farm-raised varieties—check origin labels
·Consume fish within 1-2 days of purchase or freeze immediately at 0°F (-18°C) to preserve omega-3 integrity and prevent lipid oxidation that reduces bioactivity
·Prepare by gentle cooking methods (poaching, steaming, baking at <350°F) rather than high-heat frying to prevent omega-3 degradation and formation of harmful oxidation products
·Aim for 2-3 servings (150-200g each) weekly as recommended by major health organizations; this frequency optimizes cardiovascular and cognitive benefits while managing mercury exposure in high-mercury species