1. Vegan Diet Benefits: Health and environmental benefits of adopting a vegan diet, including improved health outcomes and reduced ecological footprint. 2. Vegan Challenges: Challenges in maintaining a vegan diet, such as lack of variety and social pressures, and solutions to overcome these challenges. 3. Health Motivations: The health factors that motivate individuals to adopt a vegan lifestyle, including prevention of diseases and overall well-being. 4. Veganism's Impact on Society: The societal impact of veganism, including awareness, acceptance, and the growing accessibility of plant-based food. 5. Personal Experiences: The personal experiences of individuals, such as Liu Nai Nai's initial struggles and benefits from adopting a vegan diet. 6. Environmental and Social Good: The positive environmental and social contributions made by veganism, including reduced pollution and better animal welfare.