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Tea Caffeine Benefits
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When I ask my friends to drink more tea, they usually ask this question:
"Does it contain any caffeine?"
The short answer is "yes", but the real story is slightly more complex. What I can assure you is this: after you have read this article, you will love your tea even more!
You see, tea is far more complex than coffee. Tea caffeine acts in a way that mystified first time drinkers.
The relationship between tea and caffeine is paradoxical. Higher quality tea contains higher level of caffeine. But contrary to expectation, these teas are usually soothing, rather than stimulating.
Would you be interested to know why caffeine, and especially tea caffeine, can be your good friend?
What's Caffeine?
Caffeine is a plant alkaloid found in coffee, tea and cocoa. It acts as natural pesticide, protecting plants against certain insects that feed on them.
Tea contains alkaloids such as caffeine, theobromine, and theophylline. As natural stimulants, they increase our capacity to think and exercise more effectively.
Caffeine Health Benefits
All scientists and doctors agree on one thing:
Moderate consumption of caffeine is beneficial to health.
A 2006 study conducted by Paganini followed 13,624 Californians for 23 years from aged 74 onwards. They found that people who consumed moderate amount of caffeine has a significantly lower risk of death.
Paganini defined 200 to 400 milligrams of caffeine a day as moderate.
Ever wonder why Asians are less likely to develop senility? Some people speculate that tea beverage makes the difference.
A large body of research now suggests that tea reduces your risk of developing Parkinson's disease - probably as a result of caffeine's ability to modulate adenosine A2A receptors in the brain.
For the weight conscious, caffeine synergises with tea polyphenols to increase calories loss and fat burning.
The key is to drink a "moderate" amount of caffeine, and not remove it altogether from the diet.
How Much Is Moderate?
Consuming too much caffeine can be harmful.
Remember, caffeine is found in soft drinks, energy drinks, chocolate and energy mints, as well as tea and coffee.
How do you know you are consuming too much caffeine?
The side effects are restlessness, irritability, sleeping problems, tremor, heart palpitations, loss of appetite, upset stomach, nausea, frequent urination and skin rash.
The UK Tea Council recommends drinking not more than 6 cups of tea or 300 milligrams of caffeine a day as being safe for most people.
This is sound advice. The Paganini study showed that 300 grams of caffeine a day are optimum and reduces risk of death.
Tea Versus Coffee
If you
are a coffee-drinker, consider switching over to green tea!
Tea offers 3 advantages over coffee:
More on the third point...
The generally accepted rule of thumb is that tea contains half the amount of caffeine in coffee.
Unlike coffee, tea chemistry is far more complex. It contains catechins - a major class of antioxidants and theanine - a feel-good compound that promotes concentration and relaxed awareness.
Catechins and theanine interact with caffeine in hot water to form more complex compounds. They act together to increase tea health benefits and reduce its caffeine side effects.
Such is the wonder of Nature.
Take Special Precautions When...
Caffeine is generally a safe substance to consume. There hasn't been any reported case of someone dying from over-consumption of caffeine. You really have to consume a very large amount for that to happen.
However, special situations do apply.
Tea is complex. It has more than 200 bioactive substances. While overall it has many health benefits, these chemicals, when acting on their own, often have the opposite effects on the body.
If you have a medical condition and have been advised by your medical adviser to reduce caffeine intake, please exercise caution. Ask them to clarify what they mean.
For further information, please read the article on Green Tea Side Effects.
References:
Wikipedia, The free encyclopedia. Caffeine.
Paganini-Hill A, Kawas CH, Corrada MM (2006). Non-alcoholic beverage and
caffeine consumption and mortality: the Leisure World Cohort Study. Prev Med.
2007 Apr;44(4):305-10. Epub 2006 Dec 29.
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