The bones in canned sardines are generally soft enough to eat, and they can provide a useful source of calcium.
Calcium is essential for maintaining strong bones and teeth. It also plays a role in muscle contraction and normal nerve function.
Because the bones are softened during the canning process, they are usually barely noticeable when the fish is eaten.
This is one nutritional feature that makes sardines particularly interesting compared with many other fish.
Why Smaller Fish May Be a Smart Choice
Sardines are relatively low on the food chain because they feed primarily on plankton and other small organisms.
This matters because larger predatory fish can accumulate higher concentrations of certain environmental contaminants over time.
As a general rule, choosing a variety of seafood rather than eating the same large predatory fish every day can be a sensible approach.
Health authorities generally provide guidance on seafood choices, especially for pregnant people and young children, because mercury exposure is an important consideration.
Sardines are typically considered a lower-mercury seafood choice, which is one reason they frequently appear on lists of fish that can be eaten regularly.
Still, seafood recommendations can vary by country, so checking local guidance is worthwhile.
Fresh, Frozen, or Canned: Which Is Better?
You do not necessarily have to buy fresh sardines to benefit from them.
Canned sardines can be extremely convenient.
They are already cooked, have a long shelf life, and can be added to salads, sandwiches, rice dishes, pasta, or whole-grain toast.
Fresh or frozen sardines can also be excellent, especially when grilled, baked, or lightly seasoned.
The bigger consideration with canned varieties is often sodium.
Some canned sardines contain a significant amount of salt, so if you are watching your sodium intake, compare nutrition labels and choose lower-sodium products when available.
Sardines packed in oil can also contain more calories than sardines packed in water, although the type of oil matters as well.
How Can You Add Sardines to Your Diet?
One of the easiest things about sardines is their versatility.
You can add them to:
Whole-grain toast:
Mash sardines with lemon juice, herbs, and a little olive oil for a quick protein-rich topping.
Salads:
Add sardines to leafy greens, tomatoes, cucumbers, beans, and other vegetables.
Pasta: