Tuna is one of the world’s most popular seafoods and one of the most economically valuable. In some countries tuna is the main source of protein. Many livelihoods, particularly in island nations, depend on tuna fishing.

This year is the fifth annual World Tuna Day. The day was set up by the UN to celebrate tuna species and support the communities that rely on tuna fishing. But do you really know what’s behind your tuna sandwich? Find out all you need to know from our tuna hub. 


Tuna melt with cheese on white plate with garnish

The best sustainable tuna melt

Make sure your next tuna melt is both sustainable and delicious.

Dive in
Yellowfin tuna fish illustration

Fish to eat: Tuna

Our quick guide with basic facts about different tuna species.

What is tuna?
Tuna handbook cover image showing heads of tuna with text.

Sustainable Tuna Handbook

A guide to sustainable tuna fishing and sourcing

Close-up of tuna underwater

The rapid rise of sustainable tuna

Changes on the water are being driven by increasing retailer and consumer demand.

Read the story
Yellowfin tuna underwater

Tuna questions and answers

Common tuna questions answered.

Find out more
Chef cutting tuna

A foodie's guide to tuna

How a staple can be a gourmet dish.

Dive in



Tuna recipes from Bart van Olphen

Tasty tuna recipes from Dutch chef and founder of sustainable seafood brand, Fish Tales
Tuna noodle salad served in a bowl

Tuna noodle salad with wafu dressing

Prep time 20 mins
Cooking Time 5 mins
Serves 2
Tuna melt served on a board with ketchup

Tuna melt with ketchup

Prep time 20 mins
Cooking Time 5 mins
Serves 2
Tuna and olive stuffed romano peppers on a board

Tuna and olive stuffed romano peppers

Prep time 20 mins
Cooking Time 25 mins
Serves 2



Tuna stories

As demand for tuna continues to increase, more tuna fisheries are improving their practices. This means more tuna fisheries are becoming MSC certified. We want to tell the stories of those fishers who are bringing sustainable tuna to our tables.
A side shot of a refrigerated fish stall with someone placing slices of tuna on a tray.

Sustainable fish to eat

There are more than 40,000 MSC certified sustainable fish and seafood products on sale around the world.

Find out more
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