From the perspective of some people, lacto-ovo vegetarian is similar to the most traditional vegetarian diet. You wouldn't eat meat or fish in this variation, but you would still include eggs and dairy products in your diet.

The Latin word lac, which means milk, is the root of the prefix "lacto", which means dairy goods or cow's milk. Milk can only be produced by mammals like cows. The Latin word ovum, which means egg, is where the prefix "ovo" originates from. When you eat a lacto-ovo vegetarian diet, you must exclude all animal-derived foods including beef, fish, chicken, and pork while including dairy products like eggs, milk, cheese, butter, yogurt, sour cream, and ice cream. Some people choose this variation for religious or cultural reasons. For instance, followers of Buddhism and Hinduism may follow a lacto-ovo vegetarian diet.

According to the "lacto" prefix, a lacto-vegetarian diet is a plant-based diet that includes dairy products. Dairy products like cow's milk and foods made with it are included in this version. Cheese, butter, sour cream, yogurt, and ice cream are a few examples.

All meats, including beef, pork, chicken, and fish, are prohibited. Eggs are also excluded. A lacto-vegetarian diet can include a variety of different foods, including fruits, veggies, whole grains, healthy fats, dairy products, and protein-rich foods. Similar to the lacto-ovo-vegetarian diet, people may follow a lacto-vegetarian diet for religious or cultural reasons. People who practice Jainism, Hinduism, and Buddhism frequently follow this variation.

The "ovo" prefix indicates an ovo-vegetarian diet, which excludes dairy products but includes eggs. In addition to meat and fish, an ovo-vegetarian diet eliminates all dairy products and foods made with them, including cow's milk, cheese, butter, sour cream, yogurt, and ice cream.

Whole eggs are a great addition to almost any diet because they are both inexpensive and nutritious. They are a great source of B vitamins, anti-inflammatory substances, and high-quality protein. In fact, if they are having trouble getting all the nutrients they require from a purely vegan diet, some people decide to include eggs in an otherwise animal-free diet. An ovo-vegetarian would eat eggs and egg dishes such as omelets, hard-boiled eggs, and scrambled eggs. Additionally, they could add eggs to baked goods like muffins, cakes, and bread.

As indicated by the "flexi" word, a flexitarian diet is meant to be more flexible than a strict vegan or vegetarian diet. While allowing a small number of animal products, it puts considerable emphasis on the benefits of plant-based diets.

It emphasizes eating primarily vegetables but also includes some meat and other animal products, such as dairy and eggs, in moderation. The main principles of a flexitarian diet include eating mostly whole plant foods, getting the most of your protein from plants rather than animals, avoiding processed foods and added sugar if at all feasible, and occasionally including meat and animal products. Because flexitarians occasionally eat small amounts of meat, they wouldn’t technically be considered a vegetarian. It is up to individuals to customize their diet to fit their lifestyle.

A pescatarian diet consists of fish and is based on vegetables. The prefix originated from the Italian word “pesce”, meaning fish. A typical pescatarian diet is primarily vegetarian with the addition of seafood. The diet excludes other meats like beef, chicken, or pork while allowing fish-based dishes like tuna, halibut, salmon, or sushi.

It varies from person to person if a pescatarian diet includes dairy products and eggs. Getting beneficial omega-3 fatty acids from fish and seafood is a perk of a pescatarian diet. Plant-based diets have numerous known advantages, such as a reduced risk of obesity and serious diseases including diabetes and heart disease. Many of those protective benefits may also be obtained from a pescatarian diet, according to a study.

A vegan diet prohibits the consumption of any foods produced from animals, such as dairy, eggs, meat, and fish. Because honey is made by bees, some vegetarians also choose to avoid it.

One of the primary motivations for some people's vegan diets is ethics. A vegan diet consists only of plant-based foods. Fruits, vegetables, grains, nuts, seeds, and legumes like beans, peas, and lentils are included in this. A vegan diet may include plant-based substitutes for traditional animal products such as tofu, tempeh, seitan, and jackfruit as well as plant-based milk and dairy products and egg substitutes. The vegan diet also varies in that it often influences a person's daily life in addition to their dietary preferences. Some minerals are typically lacking in vegan diets. Because of this, doctors frequently advise vegans to take supplements containing specific vitamins and minerals, such as zinc, vitamin B12, iron, and omega-3 fatty acids.