Preventing the exploitation of animals is not the only reason for becoming vegan, but for many it remains the key factor in their decision to go vegan and stay vegan. Having emotional attachments with animals may form part of that reason, while many believe that all sentient creatures have a right to life and freedom.

While raising animals for food requires large amounts of land, feed, energy, and water, according to a study by the British Broadcasting Corporation (BBC), the vegan diet is not always green either. Fruits and vegetables often cannot be grown in certain locations or during specific seasons, so they must be transported ...

Many people still believe that a vegan diet is deficient in essential nutrients, or that it is not sustainable for long-term health. Additionally, vegans may face negative stereotypes, such as being viewed as “preachy” or “judgmental.”

Vegans can be at a greater risk of becoming anaemic because of the lack of vitamin B12 and omega-3, which can cause fatigue and the inability to concentrate, especially in young people. There is also an association between veganism and lower bone density, which can lead to an increased risk of fractures.