1. Digestive system: Drinking black tea after meals dilutes gastric juice, making it more difficult for the stomach to digest food, and easily causing flatulence, indigestion and constipation.
2. Nervous system: Black tea contains caffeine, which easily leads to difficulty in falling asleep and long-term insomnia.
3. Urinary system: Drinking black tea for a long time will increase the burden on the kidneys.
4. Drinking black tea in moderation is beneficial: it can reduce blood fat, remove body fat and enhance the body's anticoagulant ability. Rich in vitamins and minerals, it is mainly suitable for people with elevated blood lipids and blood sugar, but it is not suitable for long-term drinking.
Drinking black tea for a long time may be harmful to your health, but drinking it in moderation is beneficial:
1. Digestive system: Drinking black tea after meals dilutes gastric juice, making it more difficult for the stomach to digest food, and easily causing flatulence, indigestion and constipation.
2. Nervous system: Black tea contains caffeine, which easily leads to difficulty in falling asleep and long-term insomnia.
3. Urinary system: Drinking black tea for a long time will increase the burden on the kidneys.
4. Drinking black tea in moderation is beneficial: it can reduce blood fat, remove body fat and enhance the body's anticoagulant ability. Rich in vitamins and minerals, it is mainly suitable for people with elevated blood lipids and blood sugar, but it is not suitable for long-term drinking.
1. lead pollution: during the production of black tea, it may be polluted by environmental factors such as soil and fertilizer, resulting in lead in tea. Drinking lead-containing black tea for a long time will do some harm to human body.
2. Gastrointestinal irritation: Black tea is irritating, which may stimulate the gastrointestinal tract on an empty stomach, leading to symptoms such as bloating and diarrhea.
3. Pigment deposition: Black tea contains a lot of flavonoids and various organic acids. Long-term drinking will produce pigmentation and make the skin black.
4. Tea stains: Black tea contains high levels of enzymes, such as tea oxidase and polyphenol oxidase. Long-term drinking will lead to yellowing of teeth and tea stains.
5. Diet balance: Long-term drinking of black tea may affect the diet balance and adversely affect human health.
Generally speaking, moderate drinking of black tea is beneficial to human body, but long-term drinking of excessive or unsanitary black tea will do harm to human body. It is recommended to drink high-quality black tea purchased through regular channels, control the consumption and ensure a balanced diet.