Antioxidant, lowering blood sugar and other effects. South Africa leaf, also known as robusta, is a plant that grows in South Africa. Its leaves and stems can be used to make tea drinks. Rooibos tea is popular for its unique taste and many benefits. South Africa leaf tea has a variety of effects, including: Antioxidant: South Africa leaf tea is rich in polyphenolic compounds, which have strong antioxidant effects and can help scavenge free radicals and slow down aging. Lower blood sugar: South African leaf tea contains a substance called glucocorticoid, which can help lower blood sugar levels and has a certain auxiliary therapeutic effect on patients with diabetes. Promote digestion: South African leaf tea is rich in nutrients and fiber, which can promote gastrointestinal motility and relieve constipation and stomach discomfort. Improve sleep: South African leaf tea contains substances called natural ketones, which can help relax the body and mind and improve sleep quality. Although rooibos tea has many benefits, it is not a panacea and cannot replace medical treatment. At the same time, South African leaf tea is not suitable for all people, such as pregnant women, lactating women, patients with hypotension and other people should use it with caution.