With heart-healthy salmon, tuna and avocado, many consider sushi to be a nutritious meal they can enjoy regularly.
Fish is a source of protein, with oily varieties like salmon and mackerel also rich in essential fatty acids that may ward off heart disease, promote healthy foetal development and even preserve brain health.
In excessive amounts, however, fish can contain heavy metals. Rice – a sushi staple – is a low-fat carbohydrate, however, the staple grain is also made up of arsenic.
With “scarce information” on the “potentially toxic elements in