Vegetarianism was formally put forward in Britain as early as 1847. Now, with modern obesity, hypertension and other "diseases of wealth" becoming more and more serious, vegetarian food has become one of the most popular diets. According to the wishes of the members of the International Vegetarian Federation, vegetarianism is defined as the habit of "not eating meat, poultry, fish and their by-products, eating or not eating dairy products and eggs". Even the most demanding vegetarians refuse dairy products, eggs and honey. "Semi-vegetarianism" only means eating less meat than ordinary people.

From the point of view of health and nutrition, eating more vegetables, fruits and grains can prevent many diseases, including cancer, hypertension, heart disease, diabetes and obesity.

Nutritionists believe that vegetarianism can also beautify the face. Eating more vegetables can increase plant fat and keep skin smooth. This is because the alkaline substances and vitamins in vegetables can regulate the metabolism of blood and sweat glands and strengthen skin nutrition. Vegetarian food can also keep people's hair black and supple.

Therefore, whether in summer or other seasons, eating more vegetarian food is good for your health. But meat is also necessary, among which protein, calcium and fat-soluble vitamins are more than vegetarian food. So reasonable collocation is the foundation of health and beauty.