While some cheeses are made with animal rennet, this enzyme can also be derived from vegetables and microbials. Many European cheeses are still produced with animal rennet, so some vegetarians choose to skip Parmesan and other cheeses on their pie. So, generally speaking, vegetarians can eat plain cheese pizza.

Animal cruelty Unfortunately, in order for one organism to live, another has to die. It’s part of nature’s food chain. When it comes to humans, however, some vegetarians believe that killing animals for food is immoral and harmful to the environment that supports them.

Since your concern is environmental impact, the meat that others are eating will be eaten regardless of whether it touches your food. Even if the place it is cooked was cleaned between the meat and vegetarian dishes, the meat will be consumed. So if it doesn’t bother you, it’s totally fine.

Most of the time, when a vegan or vegetarian starts eating meat after a long period of abstaining, what happens is … It’s also possible that some vegans have a food sensitivity to meat, causing symptoms like headaches, bloating or gassiness, heartburn, or irritability.

There are many misconceptions about what a vegetarian diet is and isn’t. While there are plenty of gray areas when it comes to what individual vegetarians eat, eating the flesh of any animal is never considered to be vegetarian. That includes the flesh of dead fish. To make it absolutely clear: fish is not vegetarian.

Many vegetarians eat eggs even if they exclude animal flesh and fish from their diet. Those who eat eggs and dairy are known as lacto-ovo vegetarians, while those who eat eggs but no dairy are ovo-vegetarians.

Here are some examples of plant-based protein sources for you to try:

• Eggs. Eat your eggs however you like them prepared.
• Nut butter. Consider eating toast with almond butter, which is packed with protein and heart-healthy fats.
• Steel-cut oatmeal.
• Green vegetables.
• Nuts and seeds.
• Beans.
• Soy products.
• Lentils.

According to the simplest definition of vegetarian, yes, milk is vegetarian, and you can still drink milk on a vegetarian diet and call yourself a vegetarian.

While most of Cadbury’s products are labelled as being suitable for vegetarians, some, like its Dairy Milk Daim bars for example, are not due to using rennet. McDonald’s Hot Chocolate is another product which is confirmed as containing animal rennet.

Some vegans and vegetarians might be shocked to find out that Planters Dry Roasted Peanuts are not in fact animal product free! It is used as an adhesive, to ensure that all of the spices and flavorings used stick to the peanuts as effectively as possible. Luckily not all processed nuts have this deep, dark secret.

On a vegan diet, you can eat foods made from plants, including:

• Fruits and vegetables.
• Legumes such as peas, beans, and lentils.
• Nuts and seeds.
• Breads, rice, and pasta.
• Dairy alternatives such as soymilk, coconut milk, and almond milk.
• Vegetable oils.

Can you eat oatmeal as a vegan? Absolutely. Oats themselves are vegan, so it’s all in the ingredients you use to make it. The main ingredient to worry about is the liquid used.