Food and Nutrition: What Everyone Needs to Know (Second Edition) is Now on Pre-Sale

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Seafood nutrition, safety, and sustainability

Chapter 21. Fishy Matters: Wild-Caught, Farmed, and Health Considerations

This chapter examines fish and seafood through a nutrition ecology framework (health, environment, society, economy), exploring global fish consumption and its importance in nutrition, food security, sustainability, and development. It compares wild-caught fish with farmed (aquaculture), highlighting Atlantic salmon and shrimp, illustrating that overfishing and by-catch threaten ecosystems and biodiversity and has driven some species to near extinction. While aquaculture meets eaters’ demands and provides livelihoods, sustainability practices vary, analogous to terrestrial agriculture (e.g., water pollution, antibiotics, sea lice, animal suffering). Seafood contamination from mercury and other persistent organic pollutants (POPs) and forever chemicals in the ocean can pose risks, but they are outweighed by health benefits; and omega-3s EPA and DHA are critical for pregnant women and children for optimal eye and brain development. A dietary patten including fish can be part of a heart-healthy diet, especially when replacing red meat; sustainable seafood guides inform environmentally sound, eco-conscious choices.

by-catch, overfishing, wild-caught vs farmed, aquaculture, sustainable seafood, fish, EPA, DHA Ch 21

  • Wild vs farmed fish
  • Overfishing, biodiversity, by-catch
  • Aquaculture
  • Contamination
  • Sustainable seafood

core topics this chapter addresses

Guiding Questions

  • Who eats fish and what are the nutritional benefits? 
  • How and why are fish farmed (aquaculture) and what does it look like? 
  • Is wild-caught seafood like salmon and shrimp superior to farmed? 
  • What contaminants are found in seafood and is it still safe to eat—even for pregnant women and children? 
  • Will eating fish improve cardiovascular health and reduce the risk of a heart attack?

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Look below the surface for the truth about fish and seafood, and anchor sustainable seafood strategies in evidence for nutrition and food system courses and environmental features in media.

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Copyright © 2019-2025  P.K. Newby, LLC & Food Matters Media, LLC. All Rights Reserved.

  • Food and Nutrition
  • Table of Contents
  • Book Abstract
  • Chapter 25 Future of Food
  • Chapter 24 Healthy Diet
  • Chapter 23 Diet Longevity
  • Chapter 22 SDGs 4AR AI
  • Chapter 20 Milk, Dairy
  • Chapter 21 Seafood Facts
  • Chapter 19 Meat Eggs Myth
  • Chapter 17 Nuts Beans Soy
  • Chapter 16 Grains, Gluten
  • Chapter 15 Fruit and Veg
  • Chapter 14 Coffee Tea
  • Chapter 13 Alcohol Facts
  • Chapter 12 Protein Myths
  • Chapter 11 Fat Facts
  • Chapter 10 Carbs Sugar
  • Chapter 9 Nutrients
  • Chapter 8 Water Plastics
  • Chapter 7 Diet Drivers
  • Chapter 6 Diet Fads Myths
  • Chapter 5 Food Processing
  • Chapter 4 Big Food Costs
  • Chapter 3 Big Food Costs
  • Chapter 2 Diet Disease
  • Chapter 1 Food Nutrition

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