Both these black and green tea leaves pack a good amount of punch when it comes to health. Derived from the same plant – the Camellia sinensis, uppermost buds and leaves are always plucked for finer quality teas – be it black or green. However, not only do these two teas differ in colour, but vary in property too. Let’s find out which rules the fitness forte:
Reason for Different Effects
Both teas get their properties from their method of preparation. Green tea undergoes minimal processing which leaves its EGCG or Epigallactocatechin Gallate (a popular antioxidant known for fighting cancer, cardiovascular conditions) content and polyphenols intact. This contributes to green tea’s beneficial and therapeutic properties. On the Contrary, black tea after being withered rolled and heated goes through an oxidation process called fermentation which destroys its antioxidant quality and quantity. It’s ‘catechins ‘are oxidized into theaflavins and thearubigens. Because of this variation in their nutrient content, they have different effects. Let us compare few nutrients content:-
Due to their fluoride content, both black and green tea promotes healthy bones and teeth but black tea provides more of it per serving. One cup of black tea provides between 0.2 and 0.5 milligrams of fluoride while same amount of green tea provides 0.3 to 0.4 milligrams. Consuming chloride prevents cavities and hardens teeth.
Tea’s health benefits are attributed to it being rich in four catechins- a family of flavanols. Because of absence of oxidation, Green tea’s original four catechins remain intact and give it better cancer fighting abilities than black tea. The catechin, Epigallactocatechin Gallate, or EGCG of green tea regulates gene activity in cancer cells and even fights cancer growth. Recent study indicates that EGCG promotes skin cancer cell death and inactivate genes needed for colon cancer metastasis. A cup of black tea offers 5- 10 mg of EGCG against 40-90 mgs in same amount of green tea. Hence Green tea is recommended for fighting cancer.
Green tea helps in boosting beneficial cholesterol level in the blood while reducing harmful cholesterol level. It also helps in maintaining the overall blood cholesterol level. On the other hand, black tea improves blood vessel function and is helpful in coronary artery disease
According to Linus Pauling Institute, Green tea contains 9 – 50 milligrams of caffeine per cup, while black tea offers 42 – 72 milligrams. Caffeine can temporarily increase mental alertness, promote productivity and even aid in weight loss. But high caffeine intake can cause insomnia and various other medical issues. Hence for persons used to drinking over 5 cups of tea per day, green tea is a better option.
Both black and green tea, in right amount helps promote health and well-being. Depending upon need and taste, the correct tea can be chosen.