When people think about high-protein fish, salmon is often one of the first foods that comes to mind. Salmon is nutritious, flavorful, and rich in protein and omega-3 fatty acids—but it can also be relatively expensive, especially when purchased fresh.

The good news is that you don't need to rely on salmon to get plenty of high-quality protein from seafood.

Sardines are one affordable option worth considering. They are small, nutrient-dense fish that can provide a substantial amount of protein while often costing considerably less than fresh salmon. Depending on the brand, location, and whether you're buying fresh or canned seafood, prices can vary significantly, so it's better to think of sardines as a budget-friendly alternative rather than assuming they are always a specific number of times cheaper.

And there's more to sardines than their price.

They provide protein, omega-3 fats, vitamin B12, vitamin D, selenium and when eaten with their soft edible bones an impressive amount of calcium.

Let's take a closer look at why this humble fish deserves more attention.

1. Sardines Are Surprisingly High in Protein

Protein is essential for almost every part of the body.

It helps maintain:

• Muscles

• Skin

• Hair

• Enzymes

• Hormones

• Immune function

• Body tissues

Sardines are a complete protein source, meaning they provide all nine essential amino acids that your body cannot produce on its own.

Depending on the species and preparation, a typical serving of sardines can provide roughly 20–25 grams of protein per 100 grams.

That's comparable to many other popular protein-rich foods.

For people trying to maintain muscle while losing weight, adding protein-rich foods such as fish to meals can make it easier to meet daily protein needs while keeping meals satisfying.

2. They Can Cost Much Less Than Salmon

One of the biggest advantages of sardines is affordability.

Fresh salmon can become expensive, particularly when buying premium cuts or larger portions.

Sardines, especially canned sardines, are often considerably more affordable.

This makes them useful for people who want to eat more seafood without significantly increasing their grocery bill.

However, seafood prices vary depending on:

• Country

• Season

• Brand

• Packaging

• Fresh versus canned

• Fish species

• Retailer

So rather than focusing on a fixed "five times cheaper" claim, the important point is that sardines can offer an economical way to add nutrient-rich seafood to your diet.

3. Sardines Are Rich in Omega-3 Fatty Acids

Sardines are also a source of EPA and DHA, two long-chain omega-3 fatty acids.

These fats have been extensively studied for their role in cardiovascular and overall health.

Omega-3 fatty acids are involved in:

• Normal heart function

• Brain function

• Cell membranes

• Regulation of inflammatory processes

Eating fish regularly can be part of a heart-healthy dietary pattern.