The energy source of human body is carbohydrate, so as long as enough starch is ingested, it can meet the needs of survival and health. If meat, protein and vitamins are added, people will be healthier.
Unless the individual's body does not allow it, it will not be under normal circumstances. Many people think that people are omnivores. If they only eat vegetarian food for a long time, their bodies will collapse, but this is not the case. It is precisely because people are omnivores that they can supplement the nutrients they need whether they eat vegetables, fruits or meat. If you only supply energy to maintain your life, vegetarianism will not cause great harm to your body, but will play a role in cleaning your stomach and helping you defecate.
For example, in the old society, many people couldn't eat a bite of meat for three years because of social poverty. People in some poor villages or even one village couldn't smell meat, but these people survived on sweet potatoes and coarse grains. Now they all look healthy and live a long life. Therefore, long-term vegetarianism will not cause much harm to the body, so those views that put an end to vegetarianism need to be considered.
In addition, there are always hidden dangers in the current meat safety problems. Food safety problems such as instant chicken, water-injected pig and water-injected cow seriously affect people's food safety, so eating less meat is also a kind of health protection. However, it can't go on forever. Being a vegetarian for a long time does not mean being a vegetarian for life. Your body can tolerate you not eating meat for a year or two, but it can't guarantee that you won't eat meat for a year. Eating healthy meat properly is good for your health.