M&S salmon is reared to higher welfare standards, responsibly sourced and RSPCA assured. High in omega 3. Proudly Scottish. High in protein, which contributes to the maintenance of muscle mass. It is recommended to eat at least two portions of fish a week, one of which should be oily. Long chain omega 3 fats contribute to the normal function of the heart. A serving provides 1.8g, 720% of the recommended daily intake of 250 mg of EPA and DHA.