1. Modern medical research data show that pine leaves contain volatile oil, flavonoids, resin, cellulose, lignin, chlorophyll, carotene, vitamins and trace elements. The volatile oil from pine leaves has expectorant, stomach invigorating, pathogenic wind expelling, antipyretic, diuretic, analgesic, anthelmintic, antibacterial and antiviral effects, and can be used to treat chronic upper respiratory tract infection. Flavonoids in pine leaves can treat vascular fragility and abnormal osmotic pressure. The resin and cellulose contained in pine leaves can reduce blood fat and blood sugar.

2. Studies show that pine needles have no toxic side effects. In the European Union and other countries, pine needles have been extracted as food additives for people's daily use.

3. There are many functions, functions and nutritional values of pine needles, and there are also places that need attention. For example, picking pine needles should pay attention to the harm of pesticides.