The recent analysis conducted by Exact Scientific Services Lab on behalf of Positively Groundfish reveals that certain species of fish, particularly Pacific Dover Sole, Sablefish/Black Cod, and Pacific Rockfish (Canary), exhibit exceptional nutritional value. These species have not been previously tested for their nutritional composition. The findings are significant as they provide health-conscious individuals in the United States with more options to meet the recommended dietary guidelines of consuming at least two servings of seafood per week, as suggested by the USDA and the American Heart Association.

Here are the key nutritional highlights of each species:

  1. Pacific Dover Sole (Mictrostomus pacificus):
    • Exceptionally high in protein, providing 96.6% of protein calories in total calories.
    • Contains significant amounts of Vitamin E, Vitamin B6, and Selenium.
    • Six times more Selenium than Alaska King Salmon.
  2. Sablefish/Black Cod (Anaplopoma fimbria):
    • Contains very high levels of Omega-3 fatty acids (EPA+DHA), likely the highest among all fish species.
    • Calorie for calorie, Black Cod offers more Omega-3 than Salmon, Mackerel, Sardines, or Anchovy.
    • Five times more Omega-3 than Atlantic Cod.
  3. Pacific Rockfish, Canary (Sebastes pinniger):
    • High in protein, providing 92% of protein calories in total calories.
    • Contains higher levels of Omega-3 compared to many other common lean white fish.
    • Canary Rockfish offers 3.5 times more Omega-3 than Tilapia or Yellowfin Tuna.
    • Also rich in potassium, containing more potassium than bananas.

Jana Hennig, the Executive Director of Positively Groundfish, emphasizes “These three species offer maximum nutritional benefits with minimal calories. In addition to their nutritional properties, these fish are considered healthy due to being wild-caught. This means they are naturally free from hormones, antibiotics, additives, and genetically modified organisms (GMOs). They are unadulterated, 100% natural fish sourced from the cold, deep waters off the West Coast.”

“It was important to study these fish because we saw a significant scientific knowledge gap concerning their nutritional content,” said Christina DeWitt, a board advisor to Positively Groundfish, a Food Scientist, and the Director of the Seafood Research and Education Center at Oregon State University. “We want to continue to advance our understanding of the health benefits afforded by various fish species.”

These fish species also score high on taste:

Pacific Dover Sole, Sablefish/Black Cod, and Pacific Rockfish (Canary) is that they offer both nutritional value and a delightful culinary experience. These fish are known for their white, mild, and flaky flesh, which makes them highly versatile for cooking and pairing with various flavors and cuisines.


The information contained in this article is for educational and informational purposes only and is not intended as a health advice. We would ask you to consult a qualified professional or medical expert to gain additional knowledge before you choose to consume any product or perform any exercise.

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