Drinking large amounts might cause side effects due to the caffeine content. These side effects can range from mild to serious and include headache and irregular heartbeat. Green tea extract also contains a chemical that has been linked with liver injury when used in high doses.
Green tea is packed full of health-promoting compounds. Regularly drinking green tea can help you lose weight and reduce your risk of several diseases, including diabetes, heart disease and cancer. Drinking three to five cups of green tea per day seems to be optimal to reap the most health benefits.
People with peptic ulcers or acid reflux should not consume green tea excessively. A 1984 study concluded that tea is a potent stimulant of gastric acid, which can be reduced by adding milk and sugar. 2.
There are also human studies on using green tea catechins to treat metabolic syndrome, such as obesity, type II diabetes, and cardiovascular risk factors. Long-term consumption of tea catechins could be beneficial against high-fat diet-induced obesity and type II diabetes and could reduce the risk of coronary disease.
Excessive drinking of green tea can cause stomach problems, diarrhoea and can even cause iron deficiency. You may also experience insomnia. Hence, drink it in limit as excess of green tea can prove detrimental to your health.
Best for Overall Health: Green Tea
When it comes to tea, green tea gets the gold. “Green tea is the champ when it comes to offering health benefits,” says Czerwony. “It's the Swiss Army knife of teas.
Determining which is better ultimately comes down to your specific needs. Green tea and coffee are both healthy and safe. Green tea may be a better choice for people with anxiety or insomnia. In contrast, coffee may suit you better if you're looking for increased alertness or improved physical performance.
Meta-analysis showed that green tea consumption caused a significant reduction in systolic blood pressure and total and LDL cholesterol. The effects on diastolic blood pressure, HDL cholesterol, and triglycerides were not significant.
Although experts are unsure whether green tea will positively affect your health from a purely medical standpoint, it is certainly a safe, tasty and zero-calorie beverage for people with kidney disease. Green tea may also lower your risk of developing kidney stones.
Green tea can cause side effects due to caffeine. These can include anxiety, tremors, irritability, and sleeping problems. This is more likely if you're sensitive to caffeine or take large doses. Side effects are less common with green tea than with other drinks that have caffeine.
Drinking green tea has not been associated with liver injury or serum aminotransferase elevations; indeed, cross sectional studies suggest that regular use of green tea is associated with lower serum ALT and AST values.
Green tea has been shown to have anticarcinogenic, anti-inflammatory, antimicrobial, and antioxidant properties and is beneficial in cardiovascular disease (CVD), diabetes and obesity, and neurologic and oral health.
Green tea is an exceptionally healthy beverage. It contains caffeine and the antioxidant epigallocatechin gallate (EGCG), both of which appear to boost metabolism ( 71 , 72 ). EGCG is a catechin, which several studies suggest may help you lose belly fat.
Drinking green tea on an empty stomach can cause stomach upset. Green tea has polyphenols known as tannins that increase stomach acid, leading to stomach pain, nausea, burning sensation, or even constipation. You have to drink green tea between meals or after a meal.
Does Green Tea Reduce Belly Fat? Green tea has been shown to reduce belly fat (yay!) because green tea helps you lose visceral fat around your abdomen. This is excellent because this is the fat shown to be linked to increased risk for cardiovascular diseases, diabetes, and breast cancer.
Both green and black tea can help lower cholesterol levels. Green tea is prepared from unfermented leaves and black tea from fully fermented leaves of the same plant. Researchers believe that catechins, a type of antioxidant found in tea, are responsible for its cholesterol-lowering effect.
Green tea might slow blood clotting. Taking green tea along with medications that also slow blood clotting might increase the risk of bruising and bleeding.
Black and green tea are the most popular kinds, accounting for 99% of the tea consumed in the United States. Both kinds of tea are loaded with caffeine and antioxidants called polyphenols, which are linked to lower blood pressure and better heart health.
Teas. Many black, green, and herbal teas contain tannins, which naturally stain teeth and gums. Green tea leaves a dull gray stain on teeth, while black tea leaves yellowish stains, but even such herbal teas as chamomile and hibiscus may cause staining and discoloration if regularly consumed over time.
Relative to caffeine, there were further acute increases in systolic and diastolic blood pressure at 30 min among those drinking green tea [5.5 mmHg (95%CI -1.4 to 12.4) and 3.1 mmHg (95%CI -0.1 to 6.3), respectively] and black tea [10.7 mmHg (95%CI 4.0 to 17.4) and 5.1 mmHg (95%CI 1.8 to 8.4), respectively].
You can put milk in green tea. White tea can be great with milk, and oolong tea with milk can be beautiful. The worst kind of tea to drink with milk is a tea that does not taste good on its own. If a tea is bitter and astringent, your body is telling you not to drink it.
Black and green tea are associated with a lower risk of heart attack and stroke, and short-term studies suggest it's good for your blood vessel health.