<unk>  is the practice of abstaining from the consumption of meat (red meat, poultry, seafood, insects, and the flesh of any other animal). It may also include abstaining from eating all by-products of animal slaughter.<unk>  may be adopted for various reasons. Many people object to eating meat out of respect for sentient animal life. Such ethical motivations have been codified under various religious beliefs as well as animal rights advocacy. Other motivations for<unk>  are health-related, political, environmental, cultural, aesthetic, economic, taste-related, or relate to other personal preferences. Preference for vegetarian foods can also be linked to one's own socio-economic status and evolutionary factors. There are many variations of the vegetarian diet: an ovo-lacto vegetarian diet includes both eggs and dairy products, an ovo-vegetarian diet includes eggs but not dairy products, and a lacto-vegetarian diet includes dairy products but not eggs. As the strictest of vegetarian diets, a vegan diet excludes all animal products, including eggs and dairy. Maintenance of a vegetarian diet can be challenging. While avoidance of animal products may provide health and ethical benefits, if all such products are shunned, dietary supplements will be necessary in order to prevent nutritional deficiency; in particular vitamin B12. Packaged and processed foods may contain minor quantities of animal ingredients. While some vegetarians scrutinize product labels for such ingredients, others do not object to consuming them, or are unaware of their presence.
Vegetarianism
Fruitarianism
Veganism
Sedentary lifestyle
Western pattern diet
Smoking
Polypharmacy
Chewing tobacco