What's the difference?
A lot of research has been focused on green tea, as green tea is found to contain high levels of a compound called epigallocatechin gallate (EGCG) which is a powerful antioxidant. Whilst black tea and green tea come from the same plant, Camellia sinensis, it is the process of making black tea that converts EGCG into other compounds, theaflavins and thearubigens thus reducing the levels of EGCG in black tea. However, studies have shown that these compounds have their own contribution to make to the health benefits of tea.
How can black tea help?
Whilst tea research is continuing, there have been significant studies suggesting black tea provides cardiovascular benefits.
Drink 3 or more cups of black tea a day and reduce your risk of stroke or heart attack.
A 15 year study conducted by the Netherlands National Institute of Public Health found a correlation between the regular consumption of black tea and the reduced risk of stroke. The study looked at 552 men and concluded that the flavinoids in black tea helped reduce the production of LDL ("bad") cholesterol that can lead to stroke and heart attacks. The study also indicated that those men who drank over 4 cups a day had a significantly lower risk of stroke than those who only drank two to three cups a day.
More supporting studies
This study was also supported by results from a completely separate study at Boston's School of Medicine that found an improvement in functioning of blood vessels was visible within just two hours of drinking one cup of black tea! In Saudi Arabia a study of 3000 adults suggested regular drinking of black tea can reduce the risk of coronary heart disease by 50%. A British Study published in the European Journal of Clinical Nutrition looked at the potential health benefits of tea and found that drinking 3 or more cups of black tea a day appears to significantly reduce the risk of heart disease. The study also found that although black tea contained some caffeine and other diuretic substance, it did not tend to dehydrate the body.
Not the same as Green Tea
Black tea does not seem to have the same association with reducing the risks of cancer as green tea has.The most probable reason for this difference is green tea has higher levels of the antioxidant ECGC.
Whilst black tea contains about half the amount of caffeine than coffee and of the various types of tea contains the most (around 40mg) if you drank too much, it could cause insomnia and nervousness. Research indicates that up to 300 milligrams (about 8 cups of tea) does not suggest any health risk. Anyone suffering from anaemia should avoid drinking excess amounts of black tea with meals as it can reduce a person's ability to absorb iron.
Great reasons to enjoy your cuppa!
Whilst research into all types of tea continues, there's significant support to suggest black tea is indeed a healthy beverage. We know the quality of Jenier Black Teas will provide you with an excellent cuppa any time of day, so pop the kettle on and enjoy!