<human>:  What are the pros and cons of vegetarianism?
<bot>: 
Pros of vegetarianism:
 • Lower risk of chronic diseases such as obesity, heart disease, and type 2 diabetes
 • More environmentally friendly, as plant-based sources of protein require fewer resources and less land to produce
 • Meat alternatives contain more beneficial nutrients and are typically higher in fiber

Cons of vegetarianism:
 • Limited sources of protein, so it can be difficult to get enough when not properly planned
 • Vegetarian diets are typically low in certain nutrients, such as iron, Vitamin B12 and zinc, so it may be necessary to take supplements
 • A vegetarian diet can be more expensive, since meat alternatives can be pricey