What types of vegetarians are there? What do vegan, lacto-ovo vegetarian, lacto vegetarian, ovo vegetarian, vegetarian (with five pungent vegetables), pescatarian, and flexitarian mean? What foods can different types of vegetarians eat? Why are there so many different types of vegetarians? What are the five pungent vegetables? What nutrients need special attention in different vegetarian types?

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What types of vegetarians are there?

Vegetarian Type	Definition	Edible Foods	Inedible Foods
Vegan	Only consumes plant-based foods, completely avoids any animal products.	- Vegetables - Fruits - Whole grains - Legumes - Nuts, etc.	- Meat - Fish - Eggs - Dairy products - Honey, etc.
Vegetarian (with five pungent vegetables)	Based on veganism, allows the consumption of five pungent vegetables (such as scallions, garlic, etc.)	- Vegetables - Fruits - Whole grains - Legumes - Nuts and five pungent vegetables	- Meat - Fish - Eggs - Dairy products, etc.
Lacto-Ovo Vegetarian	Consumes plant-based foods as well as eggs and dairy products	- Vegetables - Fruits - Whole grains - Legumes - Eggs - Dairy products	- Meat - Fish
Ovo Vegetarian	Consumes plant-based foods and eggs, but does not consume dairy products	- Vegetables - Fruits - Whole grains - Legumes - Eggs	- Meat - Fish - Dairy products, etc.
Lacto Vegetarian	Consumes plant-based foods and dairy products, but does not eat eggs	- Vegetables - Fruits - Whole grains - Legumes - Dairy products	- Meat - Fish - Eggs, etc.
Pescatarian	Consumes plant-based foods and seafood, but does not eat land meat	- Vegetables - Fruits - Whole grains - Legumes - Seafood (such as fish and shellfish)	- Land meat (such as beef, pork, etc.)
Flexitarian	Accepts cooking vegetarian and non-vegetarian foods together, friendly for those who eat out	- Vegetables - Fruits - Non-vegetarian food (can share utensils)	No specific restrictions, but usually avoids excessive meat consumption

Comparison table of food restrictions for different vegetarian types

Vegetarian Type	Meat	Fish/Seafood	Dairy Products	Eggs	Five Pungent Vegetables
Vegan	X	X	X	X	X
Lacto-Ovo Vegetarian	X	X	O	O	X
Lacto Vegetarian	X	X	O	X	O
Ovo Vegetarian	O	X	X	O	X
Vegetarian (with five pungent vegetables)	X	X	O	O	O
Pescatarian	X	O	O	O	X
Flexitarian	O	O	O	O	O

What are the advantages and disadvantages of different vegetarian types?

Vegetarian Type	Definition	Advantages	Disadvantages
Vegan	Only consumes plant-based foods, completely avoids any animal products.	Reduces animal exploitation, environmentally friendly, may lower the risk of certain diseases	Nutritional intake needs careful planning, may lack certain vitamins and minerals (such as vitamin B12)
Vegetarian (with five pungent vegetables)	Based on veganism, allows the consumption of five pungent vegetables (such as scallions, garlic, etc.)	Increases dietary flavor, still maintains the basic principles of vegetarianism	Still needs to pay attention to nutritional balance, five pungent vegetables may affect digestion for some people
Lacto-Ovo Vegetarian	Consumes plant-based foods as well as eggs and dairy products	Diverse sources of nutrition, easier to obtain necessary nutrients	May not be suitable for those allergic to dairy products, still needs to control animal product intake
Ovo Vegetarian	Consumes plant-based foods and eggs, but does not consume dairy products	Provides flexibility, easy to obtain protein sources	Lack of dairy products may affect calcium intake
Lacto Vegetarian	Consumes plant-based foods and dairy products, but does not eat eggs	Diverse sources of nutrition, easy to obtain calcium and vitamin D	Lack of protein sources may affect energy levels
Pescatarian	Consumes plant-based foods and seafood, but does not eat land meat	Can obtain omega-3 fatty acids, beneficial for heart health	Still consumes animal products, does not meet some people’s definition of vegetarianism
Flexitarian	Accepts cooking vegetarian and non-vegetarian foods together, friendly for those who eat out	Convenient for dining out, high flexibility	May find it difficult to maintain a pure vegetarian philosophy, easily tempted to consume too much meat

Why are there so many different types of vegetarians?

Different types of vegetarians reflect personal considerations of health, environmental protection, ethics, and culture.

Each form of vegetarianism has its unique definition and reasons, allowing people to choose the most suitable dietary approach based on their own needs.

Vegetarian Type	Definition	Main Reasons	Characteristics
Vegan	Only consumes plant-based foods, does not consume any animal products.	Animal rights, environmental protection, health considerations	Strictly excludes all animal-derived products, emphasizes plant-based diet.
Lacto-Ovo Vegetarian	Consumes plant-based foods as well as eggs and dairy products.	Health, convenience, social occasions	The most common form of vegetarianism, easy to obtain nutrition.
Lacto Vegetarian	Consumes plant-based foods and dairy products, but does not eat eggs.	Religious beliefs, health considerations	Common in certain religious traditions, provides calcium.
Ovo Vegetarian	Consumes plant-based foods and eggs, but does not consume dairy products.	Health needs, personal preferences	Relies on eggs as the main source of protein.
Vegetarian (with five pungent vegetables)	Consumes plant-based foods, but does not eat five pungent vegetables (such as scallions, garlic).	Religious beliefs, spiritual needs	Increases dietary flavor, maintains a plant-based diet.
Pescatarian	Consumes plant-based foods and fish and seafood.	Health considerations, omega-3 fatty acid needs	Provides rich omega-3 fatty acids and protein.
Flexitarian	Primarily plant-based, but occasionally consumes meat or fish.	Reduces meat intake, flexible dietary choices	Convenient and easy to accept, suitable for beginners or social occasions.

What are the five pungent vegetables?

Five Pungent Vegetables	Varieties	Description
Scallion	Green onion, red onion, shallot, chive, wild onion, garlic chive	Scallion plants with a unique aroma, commonly used for seasoning and enhancing flavor.
Garlic	Garlic, garlic sprouts	Garlic plants with a strong smell and taste, commonly used in cooking and seasoning.
Leek	Leek, leek flower	Leek plants with a special aroma, commonly used in dumplings and stir-fried dishes.
Shallot	Shallot, small garlic	Shallot plants, usually referring to small garlic or shallots, with a stronger smell.
Onion	Onion	Common root vegetables with sweet and spicy flavors, widely used in various dishes.

Why do vegetarians avoid five pungent vegetables?

Five pungent vegetables are considered five pungent plants in Buddhism, as their strong smell is believed to affect the mindset of practitioners, so many vegetarians (especially vegans and those who follow the five pungent vegetarian diet) avoid consuming these plants.

These plants are usually used to enhance the flavor of dishes, but due to their strong smell, they may not be easily accepted by some people.

What nutrients need special attention in different vegetarian types?

Nutrients	Vegan	Lacto-Ovo Vegetarian	Lacto Vegetarian	Ovo Vegetarian	Flexitarian
Vitamin B12	Needs special attention, as the main sources are animal products, it is recommended to supplement with fortified foods or supplements.	Easier to obtain, but still needs attention, it is recommended to use fortified foods.	The main source is dairy products, usually sufficient.	The main source is eggs, usually sufficient.	Generally does not need special attention, as some animal products can be consumed.
Vitamin D	Needs to be obtained through sunlight or supplements, plant-based sources are limited.	Can be obtained through sunlight and dairy products.	Obtained through sunlight and dairy products.	Obtained through sunlight and eggs.	Generally does not need special attention, as some animal products can be consumed.
Iron	Plant-based iron has lower absorption rates, needs to be paired with vitamin C to increase absorption.	Easier to obtain, but still needs attention to pair with vitamin C.	Diverse nutrient sources, usually sufficient.	Diverse nutrient sources, usually sufficient.	Generally does not need special attention, as some animal products can be consumed.
Calcium	Plant-based calcium sources are limited, needs to choose fortified foods or diversify diet.	Obtained through dairy products, usually sufficient.	Obtained through dairy products, usually sufficient.	Obtained through dairy products and other plant sources.	Generally does not need special attention, as some animal products can be consumed.
Protein	Needs to diversify plant-based foods to ensure complete amino acid intake.	Easier to obtain, can be supplemented through legumes, eggs, and dairy products.	Can be supplemented through legumes and dairy products.	Can be supplemented through legumes and eggs.	Generally does not need special attention, as some animal products can be consumed.
Omega-3 Fatty Acids	Plant-based sources are limited, it is recommended to consume flaxseeds, chia seeds, etc.	Can be supplemented through fish oil or plant-based sources like flaxseeds.	Can be supplemented through fish oil or plant-based sources like flaxseeds.	Can be supplemented through fish or plant-based sources like flaxseeds.	Generally does not need special attention, as some animal products can be consumed.