Glossary · Diet

Vegan

A lifestyle excluding all animal exploitation.

Definition

What 'Vegan' means

Coined in 1944, it rejects animals as property.

Related terms

Plant-based Vegetarian Speciesism

All glossary terms

In depth

The longer answer

Veganism is a philosophy and way of living that seeks to exclude, as far as is possible and practicable, all forms of exploitation of, and cruelty to, animals for food, clothing, or any other purpose. In a dietary context, it refers to the practice of dispensing with all products derived wholly or partly from animals, including meat, fish, poultry, eggs, animal-derived dairy, and honey. Readers encounter this term on food packaging, restaurant menus, and in ethical discussions regarding environmental sustainability and animal welfare.

In practice, a vegan lifestyle involves substituting animal proteins with plant-based alternatives such as legumes, grains, nuts, seeds, and fortified meat analogues. Beyond the plate, it extends to avoiding materials like leather, wool, and silk, as well as products tested on animals or containing hidden ingredients like gelatin, isinglass, or carmine. The food industry supports this through specialized processing techniques that replicate the textures of fats and proteins using starches, plant oils, and fermentation-derived ingredients to meet growing consumer demand.

For the consumer, adopting a vegan diet offers a significant reduction in their individual carbon footprint and land use impact compared to conventional Western diets. However, it requires mindful planning to ensure adequate intake of specific nutrients like vitamin B12, iron, and omega-3 fatty acids, which are less abundant in plants. While the market for vegan products has exploded, shoppers should remain discerning about highly processed items that may be vegan but offer limited nutritional value or contain high levels of sodium and refined oils.

At a glance

Quick facts

Quick facts — Vegan
Detail	What to know
Core Principle	Exclusion of animal exploitation and cruelty
Dietary Exclusions	Meat, dairy, eggs, honey, and animal by-products
Environmental Impact	Lowest greenhouse gas emissions per calorie
Essential Supplement	Vitamin B12 via fortified foods or supplements

In practice

What this means for you

Check ingredient labels for hidden animal derivatives like whey, casein, gelatin, or honey in processed snacks and breads.
Focus on whole plant foods like lentils and chickpeas to ensure fiber intake while keeping grocery costs manageable.
Look for the Certified Vegan logo to quickly identify products that have undergone rigorous third-party verification standards.
Consult a healthcare provider about blood tests to monitor iron and B12 levels when transitioning to long-term plant-based eating.

FAQ

Common questions

Where do vegans get their protein?

Vegans obtain protein from a diverse range of plant sources including beans, lentils, tofu, tempeh, seitan, nuts, and seeds. Most whole grains and vegetables also contribute smaller amounts of protein. By eating a variety of these foods throughout the day, individuals can easily meet their essential amino acid requirements without needing to consume animal products or specialized supplements.

Is a vegan diet always healthy?

Not necessarily, as a vegan diet can still include highly processed foods, refined sugars, and unhealthy fats. While plant-based diets are linked to lower risks of heart disease and type 2 diabetes, the health benefits depend on the quality of food choices. A balanced diet centered on whole, minimally processed plants is generally superior to one relying on vegan junk food.

What is the difference between vegan and plant-based?

While the terms are often used interchangeably, veganism is a lifestyle motivated by ethics and animal rights, whereas plant-based usually refers strictly to diet. A person might eat a plant-based diet for health reasons but still wear leather or use wool. Veganism is a broader commitment to avoiding animal exploitation in all areas of life, including clothing and cosmetics.