- All Natural Ingredients- Good source of Omega 3- Dolphin Friendly- Health Star Rating 4 Stars- Marine Stewardship Council certifiedJohn West Chunk Style Tuna in Olive Oil Blend makes a delicious snack on its own and is perfect as a recipe addition. MSC certified and dolphin safe.John West Chunk Style Tuna in Olive Oil Blend has a delicious, mild taste you can pair with pretty much anything. Perfect as a snack on its own or for adding extra texture and protein to your favourite salads, sandwiches and pasta recipes.MSC certified, John West Chunk Style Tuna in Olive Oil Blend is a chunk style tuna packed in olive oil. In addition to its great flavour and succulent texture, this tuna is also a good source of Omega-3 fatty acids with a 4 Health Star Rating. Try it in your next Mediterranean pasta salad or enjoy straight from the can for a fast and easy snack on-the-go.