KAWASAKI, Japan (AP) — Seafood lovers know the fatty marbling is what makes tuna sashimi and sushi so tasty, so for the ...

Tuna is a nutritious and protein-rich saltwater fish that may contain high levels of mercury. As a result, regular tuna consumption may lead to health issues. Mercury contamination in fish ...

KAWASAKI, Japan — Seafood lovers know the fatty marbling is what makes tuna sashimi and sushi so tasty, so for the industry, it's the fish's level of fattiness that's used to judge its quality ...

Seafood lovers know the fatty marbling is what makes tuna sashimi and sushi so tasty, so for the industry, it's the fish's level of fattiness that's used to judge its quality and pricing.