Sardines! The Tiny Fish Big on Protein

People eat sardines because they are an incredibly nutrient-dense, convenient, and sustainable superfood packed with Omega-3 fatty acids, protein, calcium, and vitamin D. As a low-mercury, affordable, and readily available, these small fish support heart and brain health, strengthen bones, and are easy to store and prepare. 

Key Reasons People Eat Sardines:

• Exceptional Nutritional Value: A single 3.75 oz can provides up to 23 grams of protein and over 50% of the daily recommended intake of Omega-3 fatty acids. They are also high in vitamin B12, selenium, and calcium (especially when bones are included).
• Health Benefits:
  Regular consumption is linked to reduced risk of cardiovascular disease, improved brain function, reduced inflammation, and better bone health
  .
Low Toxicity: Because they are low on the food chain and do not live long, sardines contain much lower levels of toxins like mercury and PCBs compared to larger fish like tuna.
Convenience and Sustainability: Canned sardines are a shelf-stable, "grab-and-go" food that requires no cooking. They are considered a highly sustainable, underutilized seafood resource.
Versatility: They can be eaten directly from the tin, on crackers, or incorporated into salads and pasta dishes. 

While they are a nutrient powerhouse, some people may find them an acquired taste, and they can be high in sodium, Health: Trusted and Empathetic Health and Wellness Information notes