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What are three types of vegetarians? A closer look

5 min read

According to a 2018 Gallup poll, 5% of American adults identified as vegetarian, though the exact dietary rules for many can be unclear. Understanding what are three types of vegetarians and their distinct practices is the first step toward exploring a plant-based lifestyle, whether for health, ethical, or environmental reasons.

Quick Summary

This article defines and differentiates between three common types of vegetarianism: lacto-ovo-vegetarian, lacto-vegetarian, and ovo-vegetarian. It details what foods are included and excluded in each diet, provides nutritional considerations, and compares the differences to help you understand the variations within meat-free eating.

Key Points

  • Lacto-ovo-vegetarians: Include eggs and dairy products in their diet, alongside plant-based foods, while excluding all meat, fish, and poultry.

  • Lacto-vegetarians: Follow a plant-based diet that includes dairy products but avoids all meat, fish, and eggs.

  • Ovo-vegetarians: Eat eggs and plant-based foods but exclude all meat, fish, and dairy products.

  • Veganism is a distinct and stricter form of vegetarianism: It involves avoiding all animal products, including meat, dairy, eggs, and often honey, and often extends to a lifestyle choice beyond diet.

  • Flexitarian and Pescatarian diets are semi-vegetarian: They are primarily plant-based but include some animal products, with Flexitarians occasionally eating meat and Pescatarians including fish.

  • Proper nutrient planning is crucial for all meat-free diets: Paying attention to intake of protein, iron, calcium, and especially vitamin B12 (for vegans) is important for maintaining optimal health.

  • Motivations for vegetarianism vary widely: People adopt these diets for ethical, environmental, health, or religious reasons, leading to the diverse types of meat-free eating patterns.

In This Article

Introduction to a Meat-Free Lifestyle

For many, the word "vegetarian" is a catch-all term for anyone who doesn't eat meat. However, the world of vegetarianism is nuanced and diverse, with followers often adopting specific dietary restrictions based on personal beliefs, health goals, or cultural traditions. The key differentiator between the most common vegetarian types is their stance on animal by-products, specifically dairy and eggs. Understanding these distinctions is crucial for anyone looking to adopt or simply learn more about a meat-free eating pattern.

This guide will focus on three main variations: the lacto-ovo-vegetarian, the lacto-vegetarian, and the ovo-vegetarian. These are the most common variations and form the basis of a broader understanding of meat-free diets. By examining what sets each apart, you can gain a clear picture of what it means to be a vegetarian today.

The Lacto-Ovo-Vegetarian

This is arguably the most common and widely understood form of vegetarianism in many Western countries. A lacto-ovo-vegetarian abstains from all meat, fish, and poultry but includes both dairy products and eggs in their diet. This dietary pattern offers a wide range of food choices, making it a relatively easy transition for those new to meat-free eating. The inclusion of dairy provides excellent sources of calcium and vitamin D, while eggs offer high-quality protein and vitamin B12.

What They Eat

Lacto-ovo-vegetarians consume a diet rich in fruits, vegetables, grains, legumes, and nuts. The addition of eggs and dairy products like milk, cheese, and yogurt makes it straightforward to meet nutritional requirements, including sufficient protein intake. Many pre-packaged or restaurant foods are suitable for this diet, which can make dining out less challenging. Popular meals include cheese pizzas, egg omelets, and yogurt parfaits, alongside plant-based staples.

The Lacto-Vegetarian

For the lacto-vegetarian, dairy is in, but eggs are out. Like other vegetarians, they strictly avoid meat, poultry, and fish. This style is quite common in certain parts of India, where dairy products are a traditional part of the cuisine, but eggs are often excluded for cultural or religious reasons. A lacto-vegetarian diet requires careful planning to ensure adequate intake of nutrients commonly found in eggs, such as protein and vitamin B12.

What They Eat

This diet focuses on plant-based foods complemented by dairy. Lacto-vegetarians enjoy milk, yogurt, and cheese, but their diet excludes eggs in any form. They must be mindful of ingredients in baked goods and other processed items that might contain egg derivatives. Dishes often include a variety of lentils, beans, grains, and vegetables, with dairy serving as a key source of protein, calcium, and fat.

The Ovo-Vegetarian

An ovo-vegetarian's diet is the inverse of a lacto-vegetarian's, including eggs but strictly avoiding all dairy products. They also abstain from meat, poultry, and fish. This is a good choice for those with lactose intolerance or a preference to avoid dairy for ethical or environmental reasons, but who still want to include eggs as a source of protein and other essential nutrients.

What They Eat

Ovo-vegetarians build their meals around plants and eggs. This allows for dishes like frittatas and scrambled eggs but requires a mindful approach to dairy-based foods. Since dairy is an excellent source of calcium, ovo-vegetarians must focus on other plant-based sources or fortified products to ensure bone health. Examples include calcium-set tofu, green leafy vegetables, and fortified plant-based milks.

Comparison of Vegetarian Types

To help clarify the differences, the following table compares the main food inclusions and exclusions for each of the three types, plus the more restrictive vegan diet for context. This side-by-side view illustrates the distinctions clearly.

Feature Lacto-Ovo-Vegetarian Lacto-Vegetarian Ovo-Vegetarian Vegan
Meat, Fish, Poultry Excluded Excluded Excluded Excluded
Dairy Products Included Included Excluded Excluded
Eggs Included Excluded Included Excluded
Best for... Beginners; balanced diet Culturally influenced diets Lactose-intolerant individuals Complete avoidance of animal products
Key Nutrient Considerations Balanced intake Ensure sufficient B12 and protein from fortified foods and dairy Ensure adequate calcium intake from plant sources Supplementation for B12 and possibly other nutrients

Related Diets: Flexitarians and Vegans

While lacto-ovo, lacto, and ovo are the primary types of vegetarianism, it's worth noting other related plant-based eating patterns. A flexitarian is a semi-vegetarian who primarily eats a plant-based diet but occasionally includes meat, poultry, or fish. This flexible approach allows individuals to reduce their meat consumption without committing to a fully restrictive diet. On the other end of the spectrum is the vegan diet, the most restrictive plant-based diet. Vegans consume no animal products whatsoever, including honey, and often extend this philosophy to other areas of their lifestyle, such as avoiding leather or wool.

Nutritional Considerations for Different Vegetarian Diets

Regardless of the type of vegetarianism you choose, proper nutritional planning is essential. A well-planned, plant-based diet can provide all the essential nutrients for a healthy life. However, certain key nutrients require special attention, particularly for more restrictive diets.

  • Protein: All vegetarian diets can easily obtain sufficient protein from sources like legumes, lentils, nuts, and seeds. Lacto-ovo and lacto-vegetarians also benefit from dairy, while ovo-vegetarians have eggs. Vegans can rely on tofu, tempeh, and seitan.
  • Vitamin B12: Primarily found in animal products, vitamin B12 can be a concern for strict vegans and, to a lesser extent, lacto-vegetarians. Fortified foods such as breakfast cereals, nutritional yeast, and plant milks, or a reliable supplement, are recommended.
  • Calcium: While dairy provides a major source of calcium for lacto-ovo and lacto-vegetarians, ovo-vegetarians and vegans must turn to plant sources. These include fortified plant-based milks, tofu, and certain leafy greens like kale and broccoli.
  • Iron: Plant-based iron (non-heme iron) is not absorbed as efficiently as iron from meat. To maximize absorption, vegetarians should pair iron-rich plant foods with sources of vitamin C, such as citrus fruits or bell peppers.

Conclusion

While the concept of vegetarianism seems simple, the reality is a spectrum of dietary choices and restrictions. Identifying what are three types of vegetarians—lacto-ovo, lacto, and ovo—is fundamental to understanding this dietary landscape. Each variation caters to different needs and beliefs, allowing individuals to customize their meat-free journey. By being mindful of key nutrients and ensuring a balanced intake of fruits, vegetables, grains, and protein sources, any of these paths can lead to a healthy and satisfying lifestyle. The rise of plant-based products and increased availability of nutritional information make it easier than ever to explore these dietary patterns responsibly.

For more detailed nutritional information and tips on plant-based eating, the Academy of Nutrition and Dietetics offers valuable resources for individuals at any stage of their vegetarian journey.

What are three types of vegetarians?: A quick guide

  • Lacto-ovo-vegetarian: The most common type, includes eggs and dairy but excludes all meat, poultry, and fish.
  • Lacto-vegetarian: Avoids meat, poultry, fish, and eggs, but still consumes dairy products.
  • Ovo-vegetarian: Excludes meat, poultry, fish, and dairy, but includes eggs.
  • Vegan: Excludes all animal products and by-products, including meat, fish, poultry, eggs, and dairy.
  • Flexitarian: Primarily plant-based but occasionally includes meat, poultry, or fish.
  • Nutrient planning: Requires attention to protein, vitamin B12, calcium, and iron, with vegans needing B12 supplementation.
  • Customizable diets: The range of vegetarian diets allows individuals to tailor their eating habits to match personal ethics, health needs, and preferences.

Frequently Asked Questions

A lacto-ovo-vegetarian includes both dairy products and eggs in their diet, while a lacto-vegetarian includes dairy but excludes eggs.

The lacto-ovo-vegetarian diet, which includes both dairy and eggs, is the most common form of vegetarianism in many Western countries.

No, traditional vegetarians do not eat fish. A diet that includes fish but no other meat is called pescatarian and is not strictly considered vegetarian.

A vegan diet is a type of plant-based diet, but it is the most restrictive form of vegetarianism, excluding all animal products and by-products, including dairy and eggs.

Ovo-vegetarians, who do not consume dairy, can get calcium from fortified plant-based milks and juices, calcium-set tofu, and leafy green vegetables like kale and broccoli.

A flexitarian diet is a semi-vegetarian eating pattern that is mostly plant-based but includes meat, poultry, or fish on an occasional or moderate basis.

Vegetarians can get plenty of protein from plant sources like legumes, lentils, nuts, seeds, and grains. Lacto-ovo and lacto-vegetarians also consume dairy, and ovo-vegetarians include eggs, all of which are excellent protein sources.

References

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Medical Disclaimer

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