<human>:  What are the pros and cons of a vegan diet?
<bot>: 

Pros:
 A vegan diet can reduce the risk of certain diseases such as heart disease, diabetes, cancer and obesity. It can also help lower your environmental impacts as it typically requires fewer resources to produce plant-based foods than animal-based foods. Additionally, a vegan diet can promote better digestion and provide important vitamins and minerals.2

Cons:
 Depending on how well the vegan diet is planned, it can be a risk for nutrient deficiencies or require you to take a supplement to meet your daily needs. It may also lack certain food advantages found in animal products like complete sources of protein, vitamin B12 and healthy fats such as omega-3 fatty acids. Additionally, vegan diets can be more expensive and require more planning.