Tag Archive for: Tea

coffee-teaCaffeine has many effects on the body’s metabolism, and is naturally found in certain leaves, beans, and fruits of over 60 plants worldwide.

Studies have shown that moderate consumption of caffeine, whether in coffee or tea may reduce your risk of diabetes, Parkinson’s disease, Alzheimer’s disease, and certain cancers.

Facts on Tea & Coffee:

  • White tea is unfermented and offers the most powerful antioxidant levels of all the teas.
  • Black tea is made from fermented leaves and has the lowest levels in monomeric catechins due to the fermentation process, which have been linked to cancer prevention.
  • Green tea is full of antioxidants that may help prevent different types of cancer including breast, lung and stomach.
  • White tea has the highest concentration of antioxidants and may actually be more effective preventing some diseases than green tea.
  • Tea contains fluoride which protects teeth.
  • Tea hydrates.
  • Studies have shown that tea helps prevents the development of type 1 diabetes.
  • Tea protects against lung cancer.
  • Coffee caffeine has been linked to improved memory recall and may also help prevent Alzheimer’s, heart disease, type 2 diabetes and can help ease asthma attacks.
  • Caffeine increases the effectiveness of pain killers.
  • Coffee protects the liver, against cirrhosis and cancer.
  • Coffee improves short term recall as well as improves reaction times.
  •  Green and black teas contain anti-inflammatory antioxidants that are good for preventing and managing arthritis, memory problems, and cataracts.
  • Drinking tea too hot increases the risk of esophageal cancer.
  • White tea may help prevent obesity by inhibiting the growth of new fat cells.
  • Caffeinated coffee has been shown to help prevent memory loss and decrease the risk of certain cancers.
  • Drinking coffee over a long period of time, may reduce the risk of dying from heart disease and are less likely to suffer from Alzheimer’s disease later in life.
  • Over 1000 chemicals have been found in roasted coffee with 19 being known carcinogens.

Caffeine amounts per an average cup ( 8oz/237 ml):

Tea:        Black tea 90mg     White tea 75mg      Green tea 50mg

Coffee:   Brewed 135mg       Espresso 40mg

*espresso is served in much smaller volumes, so less caffeine; from a volume perspective, espresso has much more caffeine than brewed coffee. 

Caffeine intake levels:

  • a low to moderate intake is 130 mg-300 mg per day
  • a moderate is 200 mg-300 mg per day
  • high doses are above 400 mg per day
  • heavy caffeine consumption is more than 6,000 mg/day.

As with most things in life: everything in moderation including drinking coffee and tea.

Green tea has been used as a medicine for thousands of years, originating in China but widely used throughout Asia this beverage has a multitude of uses from lowering blood pressure to preventing cancer. The reason that green tea has more health benefits attached to it than black tea is (apparently) due to the processing. Black tea is processed in a way that allows for fermentation whereas green tea’s processing avoids the fermentation process. As a result, green tea retains maximum amount of antioxidants and poly-phenols the substances that give green tea its many benefits.

Here’s a list of some of its amazing benefits — benefits that you may not have been aware of. Some of these benefits are still being debated, so please do your own research if you want to use green tea for medicinal purposes.

  1. Weight Loss. Green tea increases the metabolism. The polyphenol found in green tea works to intensify levels of fat oxidation and the rate at which your body turns food into calories.
  2. Diabetes. Green tea apparently helps regulate glucose levels slowing the rise of blood sugar after eating. This can prevent high insulin spikes and resulting fat storage.
  3. Heart Disease. Scientists think, green tea works on the lining of blood vessels, helping keep them stay relaxed and better able to withstand changes in blood pressure. It may also protect against the formation of clots, which are the primary cause of heart attacks.
  4. Esophageal Cancer. It can reduce the risk of esophageal cancer, but it is also widely thought to kill cancer cells in general without damaging the healthy tissue around them.
  5. Cholesterol. Green tea reduces bad cholesterol in the blood and improves the ratio of good cholesterol to bad cholesterol.
  6. Alzheimer’s and Parkinson’s. It is said to delay the deterioration caused by Alzheimer’s and Parkinson’s. Studies carried out on mice showed that green tea protected brain cells from dying and restored damaged brain cells.
  7. Tooth Decay. Studies suggests that the chemical antioxidant “catechin” in tea can destroy bacteria and viruses that cause throat infections, dental caries and other dental conditions
  8. Blood Pressure. Regular consumption of green tea is thought to reduce the risk of high blood pressure.
  9. Depression. Theanine is an amino acid naturally found in tea leaves. It is this substance that is thought to provide a relaxing and tranquilizing effect and be a great benefit to tea drinkers.
  10. Anti-viral and Anti-bacterial. Tea catechins are strong antibacterial and antiviral agents which make them effective for treating everything from influenza to cancer. In some studies green tea has been shown to inhibit the spread of many diseases.
  11. Skincare. Green tea can apparently also help with wrinkles and the signs of aging, This is because of their antioxidant and anti-inflammatory activities. Both animal and human studies have demonstrated that green tea applied topically can reduce sun damage.

How Much?

These are some of the many benefits but the reality is one cup of tea a day will not give you all the abundant gains. The jury is out on how many cups are necessary; some say as little as two cups a day while others five cups — and more still say you can drink up to ten cups a day. If you are thinking of going down this route, you may want to consider taking a green tea supplement instead (it would keep you out of the bathroom).

Another thing to point out is that there is caffeine in green tea — so if you are sensitive to caffeine then one cup should be your limit. Green tea also contains tannins (which can decrease the absorption of iron and folic acid), so if you are pregnant or trying to conceive then green tea may not be ideal for you. You can try mixing green tea with other healthy ingredients such as ginger.

For the rest of us with all these abundant benefits…it’s a wonder we drink anything else.

Written by: Ciara Conlon is author of “Chaos to Control,