Sardines

Nutrition per ~85 g · a palm-sized piece (~3 oz)

Vitamins

Minerals & other

Bioactives estimated

Representative amounts for this food, not measured for this item. Real content varies widely by variety, ripeness and storage.

What drives the score weighted inputs

These are the scored components, not a sum: the published score also reflects normalisation across the catalog, so the parts above will not add to 97.

What it feeds primary sources only

Systems

Pathways

Overview

Sardines are small pelagic fish consumed whole—bones, skin, and all—providing a complete nutritional package unavailable in most other foods. Traditionally a staple in Mediterranean and Asian cuisines for millennia, sardines have regained prominence in modern nutrition science due to their extraordinary micronutrient density. Per 100g, they deliver 1,480 mg of EPA and DHA omega-3 fatty acids, supporting cardiovascular and cognitive health. Their whole-fish consumption means bioavailable calcium (382 mg) and phosphorus (490 mg) for bone health, plus 272 IU of vitamin D and 8.9 mcg of B12—nutrients critical for aging populations. Sardines contain astaxanthin, a potent carotenoid antioxidant, and selenium (52.7 mcg), supporting immune function and thyroid health. The high-quality protein (24.6g) aids muscle maintenance during aging. Being low on the food chain, sardines accumulate minimal mercury compared to larger predatory fish, making them safe for frequent consumption. Their affordability and sustainability make sardines an ideal longevity food for diverse populations.

Health benefits 5

Pairs with

• Pair with leafy greens (spinach, kale) because their vitamin K works synergistically with sardine calcium and vitamin D to activate bone-building proteins (osteocalcin)
• Combine with tomatoes because lycopene's antioxidant properties complement astaxanthin and selenium, amplifying anti-inflammatory effects
• Eat with lemon or citrus because vitamin C enhances non-heme iron absorption from sardines and preserves omega-3 stability from oxidation
• Serve with olive oil because its polyphenols (oleuropein, oleocanthal) enhance omega-3 bioavailability and add independent anti-inflammatory benefits

In the kitchen

• Select canned sardines packed in water or olive oil (avoid soybean oil); drain and rinse to reduce sodium if hypertension-sensitive, though mineral content remains high
• Consume bones entirely—they contain 99% of the bioavailable calcium; softer bones in smaller sardines are easier to consume whole
• Store opened cans in the refrigerator in an airtight glass container for up to 2 days; fresh sardines should be consumed within 1-2 days or frozen immediately
• Aim for wild-caught over farmed when possible for superior omega-3 ratios and lower contaminant load, though farmed sardines remain nutritionally excellent
• Consume 2-3 times weekly (100-150g portions) to meet omega-3 targets without excessive vitamin A accumulation; sardines are naturally sustainable due to short lifespans

When to eat it anytime

Sardines are nutrient-dense without being high in calories, making them suitable for any meal. Consuming with lunch or dinner optimizes fat-soluble vitamin (D, A, E) absorption when dietary fat is present. No specific timing advantages for longevity outcomes.

Breaks a fast

While not fasting-compatible due to caloric and nutrient content, sardines break fasts exceptionally well, providing satiety, complete amino acids, and micronutrients without digestive stress.