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What is a Vegetarian That Doesn't Eat Seafood?

4 min read

According to the Vegetarian Society, the word 'vegetarian' was coined in 1847 to define a person who abstains from meat, fowl, and fish. A vegetarian that doesn't eat seafood is simply following the standard definition of a vegetarian diet, which excludes all animal flesh, including fish and shellfish. This person is typically practicing a lacto-ovo vegetarian diet, a plant-based approach that also includes dairy and eggs.

Quick Summary

This article explores the core definition of a vegetarian diet that excludes seafood. It explains the most common variation, lacto-ovo vegetarianism, and differentiates it from other diets like pescetarianism. The article also provides guidance on meal planning and meeting nutritional needs on this diet.

Key Points

  • Standard Vegetarianism: A vegetarian that doesn't eat seafood adheres to the standard definition, excluding all animal flesh, including fish and shellfish.

  • Lacto-Ovo Vegetarian: The most common type of seafood-free vegetarian is a lacto-ovo vegetarian, who eats dairy products and eggs alongside plant-based foods.

  • Not Pescetarianism: This diet is distinctly different from pescetarianism, which specifically includes fish and other seafood.

  • Nutrient Planning is Key: Without seafood, nutrients like omega-3 fatty acids and vitamin B12 require alternative sources, such as flaxseeds, fortified foods, dairy, and eggs.

  • Diverse Plant Sources: A balanced seafood-free vegetarian diet relies on a wide variety of plant foods for protein, iron, and zinc, including legumes, nuts, seeds, and leafy greens.

In This Article

Demystifying the Seafood-Free Vegetarian

For many, the term "vegetarian" is synonymous with a diet free of all animal flesh, including seafood. Yet, confusion arises when some individuals who still eat fish refer to themselves as "vegetarians," technically misinterpreting the term. A vegetarian that doesn't eat seafood is adhering to the traditional and widely accepted definition of vegetarianism. Specifically, this is most often a lacto-ovo vegetarian diet, which incorporates dairy and eggs while abstaining from meat, poultry, and fish. This comprehensive guide clarifies the terminology, explores the nuances of different plant-based diets, and provides practical advice for maintaining a balanced, nutritious seafood-free vegetarian lifestyle.

The Standard Vegetarian: Lacto-Ovo Vegetarianism

When a person adopts a vegetarian diet and includes both dairy products and eggs, they are considered a lacto-ovo vegetarian. This dietary pattern is the most common form of vegetarianism in Western countries. The term 'lacto' refers to the consumption of milk products, such as cheese, yogurt, and butter, while 'ovo' pertains to the inclusion of eggs. This approach allows for a wide variety of meal options and can provide a balanced intake of nutrients, including protein, calcium, and vitamin B12. A typical lacto-ovo vegetarian diet consists of a diverse array of plant foods, supplemented by eggs and dairy, offering a robust and varied nutritional profile.

What About Pescetarianism?

The key point of distinction for a vegetarian that doesn't eat seafood is that they are not pescetarian. A pescetarian diet, while plant-based, deliberately includes fish and other seafood, making it a form of semi-vegetarianism. Pescetarians often cite health benefits, such as a rich source of omega-3 fatty acids from fish, as their primary motivation. However, this inclusion of fish fundamentally separates the pescetarian diet from standard vegetarianism. It is important to note that many vegetarian organizations, including the Vegetarian Society, do not recognize pescetarianism as a true form of vegetarianism.

Comparison Table: Vegetarian vs. Pescetarian

To better understand the difference, consider the following comparison of allowed food groups:

Food Group Standard Vegetarian (Lacto-Ovo) Pescetarian
Meat (Red & White) Excluded Excluded
Poultry Excluded Excluded
Fish & Seafood Excluded Included
Dairy (Milk, Cheese, etc.) Included Often Included
Eggs Included Often Included
Plant-Based Foods Included Included

Meeting Nutritional Needs Without Seafood

For individuals practicing a vegetarian diet that doesn't eat seafood, careful meal planning can ensure all nutritional requirements are met. Since fish and seafood are good sources of omega-3 fatty acids and vitamin B12, vegetarians must seek alternative sources. Fortunately, many plant-based foods can provide these essential nutrients. Here is a helpful guide to nutrient sources:

  • Omega-3 Fatty Acids: Vegetarians can obtain omega-3s from flaxseeds, chia seeds, hemp seeds, walnuts, and fortified foods. Algal oil supplements are another excellent direct source of EPA and DHA, the long-chain omega-3s found in fish.
  • Vitamin B12: As B12 is primarily found in animal products, lacto-ovo vegetarians can rely on fortified cereals, plant-based milks, and nutritional yeast. Supplements may also be necessary, particularly for vegans and older individuals, as absorption can decrease with age. Dairy products and eggs are also reliable sources of B12 for lacto-ovo vegetarians.
  • Protein: A varied vegetarian diet can easily provide sufficient protein. Sources include legumes (beans, lentils, peas), nuts, seeds, soy products (tofu, tempeh), eggs, and dairy.
  • Iron & Zinc: Plant-based sources of iron (non-heme iron) are not as easily absorbed as heme iron from meat. To maximize absorption, pair iron-rich plant foods like lentils, beans, and spinach with foods high in vitamin C, such as citrus fruits or bell peppers. Legumes, nuts, seeds, and whole grains are also good sources of zinc.
  • Calcium: For lacto-ovo vegetarians, dairy products are a primary source of calcium. Vegans can find calcium in fortified plant milks, tofu, kale, broccoli, and sesame seeds.

The Flexibility of Vegetarianism

The term "vegetarian" encompasses a range of diets, each with different inclusions and exclusions based on individual health, ethical, and environmental reasons. The vegetarian that doesn't eat seafood is simply following one of these widely recognized and historically rooted paths. Other notable forms include ovo-vegetarianism (eats eggs, no dairy), lacto-vegetarianism (eats dairy, no eggs), and veganism (excludes all animal products). The flexibility within this framework allows individuals to tailor their diet to best suit their needs while remaining committed to abstaining from meat, including seafood.

Conclusion

In summary, a vegetarian that doesn't eat seafood is practicing a standard vegetarian diet, most likely a lacto-ovo vegetarian approach, which includes plant foods, dairy, and eggs but excludes all forms of animal flesh. This is a clear distinction from a pescetarian diet, which includes fish. By understanding the definitions and planning meals with nutrient-dense plant foods, along with dairy and eggs, individuals can thrive on a healthy, balanced vegetarian diet without compromising their nutritional intake. The clarity around these dietary terms helps to accurately describe one's eating habits and supports a well-informed approach to nutrition.

This article was produced in collaboration with health and nutrition resources from MedlinePlus and Mayo Clinic.

Frequently Asked Questions

The main difference is that a pescetarian includes fish and seafood in their diet, while a standard vegetarian (which is what a vegetarian who doesn't eat seafood is) excludes all forms of animal flesh, including fish.

Excellent protein sources include legumes (beans, lentils), nuts, seeds, soy products like tofu and tempeh, eggs, and dairy products such as cheese and yogurt.

Vegetarians can get omega-3s from plant-based sources like flaxseeds, chia seeds, and walnuts. Algal oil supplements are also a direct and potent source of the specific EPA and DHA fatty acids found in fish.

A lacto-ovo vegetarian may get B12 from dairy and eggs. However, vegans, ovo-vegetarians, and some older lacto-ovo vegetarians may need supplements, as B12 is primarily found in animal products and its absorption can be less efficient over time.

No, eating fish is not considered vegetarian under the standard definition established by the Vegetarian Society. Individuals who eat fish but no other meat are called pescetarians.

A person who eats eggs but avoids meat, seafood, and dairy is called an ovo-vegetarian.

A person who eats dairy products but avoids meat, seafood, and eggs is called a lacto-vegetarian.

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.