Black Tea


Proven Health Benefits of Black Tea

  • Theaflavin in black tea helps reduce risk of atherosclerosis.
  • Black tea helps reduce risk of high blood cholesterol and high blood pressure
  • Black tea improves alertness and brain function
  • Black tea interferes with body mechanisms that cause Type II diabetes.
  • Black tea helps to reduce dental cavities and fights against periodontal disease
  • Black tea helps with weight loss
  • Black tea prevents neurodegenerative diseases


What is Black Tea?

Tea is from the plant, Camellia sinensis, whose magical leaves have got the world drinking only less than we drink water. Black tea is the most popular of the three variances of the leaves that come in, i.e., green, oolong and black. It is so called because the complete fermentation the leaves are meant to undergo gives them and the resultant beverage a dark brown color. Black tea is the most popular among the three because it has a fuller flavor and aroma, and also because it is more stable as a product. More than color and flavor, changes take place during the fermentation such that much of the catechins in green tea are decomposed, while many beneficial polyphenols are also formed.

What is Black Tea Useful for?

We have seen, through studies, that L-Theanine in tea has the psychoactive ability to produce the feeling of calm and relaxation. One study finds that caffein in tea, more than only increase alertness, also increases basal metabolic rate, which helps reduce obesity. Another finds that theaflavins, are also able to increase metabolic rates and help in weight loss. Studies also show that polyphenols in black tea are able to prevent cancers in many ways, including scavenging free radicals, apoptosis and preventing mutagenesis and genotoxicity. L-Theanine in black tea is also remarkably efficient in preventing the harmful effects of alcohol and acetaldehyde on the liver. Through the action of lipophilic flavonoids, black tea clears the moth of harmful bacteria and improves oral health.


Health Benefits

  • Weight loss
  • Protects nerve cells
  • Prevents rheumatoid arthritis
  • Prevents cancers
  • Anti-inflammatory
  • Improves liver health
  • Reduces risk of asthma attacks

Nutrition

For black tea, whose calorific value is almost negligible, macronutrients are not really its stronghold. Rather, it abounds in active compounds as follows:
  • catechins – 10-12%
  • flavonoids – 6-8%
  • theaflavins – 3-6%
  • thearubigins – 12-18%
  • phenolic acids – 10-12%
  • amino acids – 13-15%
  • methylxanthines – 8-11%
  • Minerals – 10%
Black tea is also rich in Theanine, an amino acid exclusive to tea, and a very potent neuro-protective and cognitive enhancing agent.

Toxicity

The regular adult should be fine with at most, 5 cups of tea a day. Black tea contains caffein – about a third as much as an approximate cup of coffee. As such, excessive consumption leads into the effects of caffein overdose. These include anxiety, restlessness, distorted sleep, dizziness and heart burn among others.

Phytochemicals in tea also form complexes with dietary iron and prevents them from being absorbed. Hence, over-consumption of tea may lead to or worsen a case of anemia. Therefore, individuals who are at risk, such as pregnant women, women in their periods and injured persons should keep to two or less cups a day. In some rare cases, people may react to the unique phytochemicals in tea. Such persons should simply find another beverage to soothe them.





References

1- https://www.researchgate.net/publication/285945210_Health_beneficial_effects_of_black_tea
2- http://teaboard.gov.in/pdf/A_boon_for_healthy_living.pdf
3- https://www.researchgate.net/publication/285945836_The_black_tea_bioactivity_An_overview





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Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The contents of this website are based upon the views of Dr. Walker and his experience. This product is not intended as medical advice nor to diagnose, treat, cure or prevent any disease. The information is likewise not to replace the advice of a qualified health care provider. The information provided herein is intended as a sharing of general knowledge only and is not intended to be, nor is it, medical advice or a substitute for medical advice. That being said, please consult your healthcare provider before using supplements or providing supplements to children under the age of 18. If you have or suspect you have, a specific medical condition or disease, please consult your healthcare provider.

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