1, Ginkgo biloba leaves not only contain lactones and flavonoids, but also contain ginkgolic acid, hydrocyanic acid and other toxic components. Active ingredients such as lactone and flavone are hardly soluble in water, while toxic bilobalic acid and hydrocyanic acid are extremely soluble. Drinking tea directly with Ginkgo biloba leaves is basically toxic, not to mention the therapeutic effect.

2. Ginkgo trees that people pick ginkgo leaves are mostly street trees or landscape trees. Greening trees are generally sprayed with pesticides. Ginkgo biloba, as a greening plant, will also absorb harmful substances in the air. Therefore, people may pick contaminated ginkgo leaves.

Generally, ginkgo biloba leaves are extracted from ginkgo orchards and then produced through a series of standardized procedures such as pharmacology, toxicology experiments and clinical experiments, rather than simply drying and crushing. Ginkgo biloba is not a panacea. If you need to use it, you should follow the doctor's advice and use it according to your personal situation and illness. It is not suitable for long-term large-scale application.

Ginkgo biloba leaves contain more than 200 medicinal components, including 46 flavonoids, 25 trace elements and 8 amino acids. Flavonoids are the main effective components, which have the functions of protecting capillary permeability, dilating coronary artery, restoring arterial elasticity, lowering serum cholesterol, increasing coronary blood flow, improving cardiovascular and cerebrovascular circulation, relieving smooth muscle spasm, relaxing bronchus, inhibiting bacteria and nourishing brain cells and other organs.

But also has the special effect of maintaining the normal levels of blood and cholesterol in arteries, peripheral blood vessels and capillaries. Ginkgo biloba leaves have high medicinal value, its pharmacological effects are constantly recognized, and its clinical application scope is gradually expanding.

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People's Daily Online-Does Ginkgo biloba tea work wonders? Experts say direct drinking is not recommended.