The Chinese already used the tea plant 4000 years ago, though its introduction to Europe occurred in the 17th century.
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Tea Plant Scientific Facts
- Scientific name: Thea Sinensis L.
- Scientific synonyms: Camellia sinensis (L) Kuntze.
- French: The.
- Spanish: Te
- Environment: Native to southwest Asia, China, and India, where it still grows wild. It is widely farmed in former countries such as Brazil and tropical Africa.
- Description: Shrub of the Theaceae or Camelliaceae family grows up to 10 m high when wild and 1-2 m when farmed. Perrenial, dark green leaves and big, white aromatic flowers.
- Parts of the plant used medicinally: Leaves.
Healing Properties and Uses
The tea plant leaves contain 1 to 4 percent caffeine (called theine to differentiate its origin), tannins (15-20 percent), and one essence. Tea’s effects are very similar to coffee’s, though less intense because tea infusions are prepared less concentrated. A cup of tea contains 40 to 60 mg of caffeine, and a cup of coffee contains 100 to 200 mg. Tea excites the nervous, heart, and blood systems and increases the secretion of acid juices in the stomach.
Tea’s use as a stimulant is an emergency remedy that should never become habitual in cases of tiredness or fatigue. Like coffee, tea stimulates but does not provide us with any nutritional substance. Thus, its regular use provokes exhaustion.
Habitual consumption produces a condition called caffeinism: constipation, stomach acidity, insomnia, and nervous excitation. Frequent consumption of tea causes addiction, as with any other drug.
Due to its tannin content, it is used for diarrhea and colitis and as a digestive tonic for upset stomachs or indigestion. Plenty of plants can constitute treatment for these conditions but lack the disadvantages of tea. In external use, it is employed as eyedrops for eye baths in cases of conjunctivitis.
WARNING! The tea plant must not be used continuously, not even as a medicine, because its caffeine content will provoke addiction (urge to keep on taking it) and tolerance (need to increase the dose), as happens with any other addictive drug. The use of the tea plant is discouraged in the following cases:
- Gastric and duodenal ulcers
- Gastritis
- Pyrosis (stomach acidity)
- Nervousness
- High blood pressure
- Heart dysfunctions
Pregnant and breastfeeding women should abstain from using tea because of the toxic effects of caffeine on the fetus or the breastfeeding baby (it passes to the milk).
How to use Tea
- Infusion with 20-40 grams per liter of water, with a maximum of five cups daily.
- Eye bath. In cases of conjunctivitis, it is employed in a decoction with 30-50 grams of plant per liter of water. Boil for five minutes to sterilize it before applying it to the eyes.
Frequently Asked Questions
I know green tea has antioxidants, but do other tea plant varieties offer the same benefits?
Yes! While green tea is noted for its antioxidant content, black, white, oolong, and pu-erh tea (all from Thea Sinensis) also contain potent antioxidants. The primary difference lies in the processing method. Green tea is unoxidized, while Black tea is fully oxidized, impacting their specific antioxidant profiles.
Can the caffeine in the tea plant be detrimental to health in any way?
Generally, moderate caffeine consumption from tea is safe for most adults. However, excessive intake can lead to jitteriness, anxiety, sleep issues, and headaches. Sensitivity varies, so listening to your body is vital. People with certain conditions may need to limit caffeine.
Does the tea plant have a tangible impact on cognitive function?
Research suggests a potential link. Combining caffeine and L-theanine in tea may improve alertness, focus, and memory. Studies also hint that tea’s antioxidants could offer long-term protection against cognitive decline.
I’ve heard tea can help with weight loss. Is this true?
Tea can modestly support weight management efforts. Particular catechins in tea may slightly boost metabolism and increase fat burning. However, tea is not a magic solution; it’s best combined with healthy eating and exercise.
Does tea have a significant effect on blood pressure?
There’s mixed evidence. Some studies indicate polyphenols in tea may help with mild blood pressure reduction. However, more research is needed to determine long-term effects. Those with blood pressure concerns should consult a doctor.
I enjoy herbal teas. Do they offer the same benefits as authentic tea?
Herbal teas (rooibos, chamomile, etc.) don’t come from Thea Sinensis, so they offer different benefits. They contain their unique blends of vitamins, minerals, and antioxidants. Many herbal teas boast specific benefits like relaxation or digestion support.
Can tea interfere with the absorption of nutrients like iron?
Yes, compounds in tea called tannins can bind to iron in food, making it less available for your body. If you’re concerned about iron absorption, it’s best to avoid drinking tea with meals.
Does the quality of tea impact its health benefits?
Yes. Loose-leaf teas offer more antioxidants and beneficial compounds than mass-market tea bags. The quality and growing conditions of the tea plant also play a role.
Are there studies supporting the use of tea in cancer prevention?
Though promising, research is ongoing. Lab and animal studies show the potential for certain tea compounds to inhibit cancer cell growth. However, human studies are less conclusive, and tea should not be seen as a cancer treatment or sole preventative measure.
Can I overdo it with tea? Are there any potential risks?
Excess consumption can lead to side effects due to caffeine. Very rarely, high intakes of tea extracts have been linked to liver issues. Moderation is essential, and consult your doctor if you have concerns.
DISCLAIMER: All content on this website is presented solely for educational and informational objectives. Do not rely on the information provided as a replacement for advice, diagnosis, or treatment from a qualified medical expert. If you are pregnant, nursing, or have any preexisting medical concerns, talk to your doctor before using any herbal or natural medicines.
REFERENCES
- George D. Pamplona-Roger, M.D. “Encyclopedia of Medicinal Plants.” George D. Pamplona-Roger, M.D. Encyclopedia of Medicinal Plants. Ed. Francesc X. Gelabert. Vols. 1 San Fernando de Henares: Editorial Safeliz, 2000. 185. Print. [tea plant]
- Health Benefits of Tea: https://www.ncbi.nlm.nih.gov/books/NBK92768/
- The Effects of Tea on Psychophysiological Health: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7283370/
- Health Benefits of Green Tea: https://www.webmd.com/diet/health-benefits-green-tea
- Plant Compounds and Absorption of Iron: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6968163/
- Tea and Cardiovascular Health: https://www.ajc.com/life/mayo-clinic-10-ways-to-control-high-blood-pressure-without-medication/4AHQ3M7SDBGLTATCU57UDQBCUI/
- Herbal Tea: https://medlineplus.gov/druginformation.html
- Tea and Cancer Prevention: https://cancercontrol.cancer.gov/brp/tcrb/monographs/monograph-23
Last update on 2024-04-25 / Affiliate links / Images from Amazon Product Advertising API