Can regular consumption of pine needles be harmful to your health?

Recently, some experts in China have provided a brand-new health care option for patients with cardiovascular and cerebrovascular diseases: pine needles to make tea. Pine needle extract is rich in natural water-soluble bioflavonoids concentrate, which is a strong antioxidant and can effectively scavenge free radicals. There are also many records about the health care and therapeutic effects of pine needles in the ancient Pharmacopoeia of China. Li Shizhen's Compendium of Materia Medica says that pine leaves can be used as medicine to treat diseases, while Shennong's Classic of Materia Medica lists pine needles as a "medicine" that can help people live longer. Now, in the United States, France, Spain and other countries, pine needles and pine trees have a wider range of medicinal uses. Pine needles are oily plants, which are easily contaminated with dirt and difficult to clean. Wash it carefully with a detergent that removes grease. You can use soft wool to brush, or you can use a soft cloth dipped in detergent to wrap pine needles to wash. After washing, soak in clear water. When cooking tea, decoct pine needles for 30-50g each time, soak in cold water for 800- 1000ml/h, boil for about 30 minutes, and then add water for 600-800ml to decoct for the second time, with the same time and method. Boiled pine needle soup can be drunk as tea, or on an empty stomach in the morning and evening, or you can cut washed pine needles into three sections and pour them into boiling water in a large thermos for half an hour before drinking. Generally, pine needles can be boiled several times and can replace tea leaves at ordinary times. For the purpose of health care, it does not need to be fried very thick, and the dosage is similar to that of tea. It is easy to make tea with pine needles, but don't collect pine needles at the roadside in the city center, because the pine needles here have been polluted by automobile exhaust for a long time and are not good for your health after taking them; Do not collect pine needles that have been applied with pesticides and insecticides; From the point of view of protecting trees, young pines within 5 years and pine needles below 3 meters are not suitable for picking. Patients with hypertension should not stop using antihypertensive drugs without authorization. Pine needles are rich in vitamin C and vitamin E, which can protect human tissues and cells from oxidation and prolong cell life. Pine needle essential oil and pine needle flavone have unique water solubility, and can enter the blood through the blood vessel wall together with unsaturated fatty acids contained in pine needles: by increasing bile secretion, cholesterol accumulation is reduced, cholesterol is removed, arteriosclerosis is prevented, peripheral blood vessels are dilated, oxygen carrying capacity of red blood cells is improved, and human blood circulation is promoted. Several symptoms of cardiovascular and cerebrovascular diseases in human body, such as angina pectoris, palpitation, wheezing, edema, dizziness, dyspnea, etc., have been incredibly improved after drinking pine needle tea. Many experiments by various research institutions around the world have proved that pine needles have no toxic side effects, carcinogenic mutations and allergic reactions. Patients with cardiovascular and cerebrovascular diseases rely on chemical drugs to relieve symptoms, and the side effects of these western medicines are also extremely lethal to human beings. Mild patients can stop taking western medicine or reduce the use of western medicine after drinking pine needle tea for a few days. It can be seen that pine is of great benefit to the body. ?