Seafood · Fatty Fish

Mackerel

Health
ScoreA+

Mackerel is a nutrient-dense oily fish exceptionally rich in omega-3 fatty acids and vitamin B12, making it one of the most bioavailable sources of marine nutrients for cardiovascular and cognitive health.

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Why Mackerel scores 93

Nutrient density35

Protein quality14

Fiber content0

Healthy fats8

Bioactive compounds13

Glycemic impact10

Top nutrients

% Daily Value per 3 oz (85 g)

Vitamin B12 673%Selenium 80%Niacin 60%Phosphorus 19%

Nutrition

per_100g

262

Calories

23.9g

Protein

Carbs

17.8g

Fat

Fiber

Health benefits

Reduces cardiovascular disease risk and supports healthy blood pressure

strong evidence

EPA and DHA omega-3 fatty acids reduce triglycerides, improve endothelial function, lower inflammation, and inhibit clot formation through antiplatelet effects

Supports cognitive function and may reduce neurodegenerative disease risk

moderate evidence

DHA accumulates in brain tissue and supports neuronal membrane integrity, synaptic plasticity, and reduction of neuroinflammation

Enhances red blood cell formation and prevents pernicious anemia

strong evidence

Exceptional vitamin B12 content (19mcg per 100g) supports methylation cycles, DNA synthesis, and myelin formation in the nervous system

Supports immune function and reduces systemic inflammation

moderate evidence

Astaxanthin and selenium work synergistically to enhance antioxidant defenses, suppress pro-inflammatory cytokines, and support T-cell function

Promotes bone health and calcium absorption

moderate evidence

Vitamin D facilitates intestinal calcium absorption and regulates parathyroid hormone; phosphorus and protein support bone matrix formation

Pairs well with

·Pair with lemon or lime because citric acid enhances iron and mineral bioavailability from the fish and supports collagen synthesis
·Combine with leafy greens (spinach, kale) because vitamin K in greens synergizes with vitamin D and calcium for bone metabolism and vascular health
·Serve with sweet potato or asparagus because their polyphenols enhance astaxanthin absorption and provide prebiotic fiber for gut microbiota supporting omega-3 metabolism
·Pair with garlic or onions because their allicin and quercetin compounds provide additive anti-inflammatory and cardiovascular benefits

Practical tips

·Best timing: Mackerel can be consumed at any meal; morning consumption supports sustained energy and cognitive function via B12 and protein; evening consumption may improve sleep quality through omega-3 support of melatonin synthesis. No specific timing advantage, but pair with meals containing fat-soluble vitamin sources for optimal absorption.
·Choose wild-caught Atlantic or Pacific mackerel over farmed varieties; wild mackerel have higher omega-3 density and lower contaminant risk due to shorter lifespans and natural diets
·Consume 2-3 times weekly (150-200g portions) to meet omega-3 recommendations while managing mercury exposure; mackerel's smaller size makes it safer than larger fish like swordfish
·Store fresh mackerel on ice and use within 1-2 days; freeze in parchment paper with the purchase date to preserve omega-3 integrity for up to 3 months
·Eat the skin when grilled or baked—it contains astaxanthin and selenium concentrated in surface tissues; avoid charring which damages heat-sensitive micronutrients
·If using canned mackerel, choose varieties packed in water or olive oil rather than soybean oil to optimize omega-3 to omega-6 ratios