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Posts Tagged ‘Phytochemicals’

I am a longtime hot tea fan. For decades, anytime has been tea time for me. While others order a different favorite brew, as I do occasionally, I prefer black tea. Now comes evidence of my reward for my beverage choice. As little as one cup per day may improve health.

Tea contains flavonoids which have antioxidant properties. Flavonoids come from a broad category of non-nutritive phytochemicals found only in plants. These substances help to maintain health in varied ways. Other familiar phytochemicals include carotenoids, isoflavones, phenolic acids, and many more. It is estimated that hundreds of phytochemicals are yet to be identified. Tea has one of the highest concentrations of flavonoids of any plant. The type and amount in tea varies depending on several factors.

While antioxidants are in a different category, some phytochemicals have antioxidant properties, meaning they can help prevent or delay damage to cells and tissues. Antioxidants are found in both plant and animal sources.

Green tea has more of the flavonoid called catechins. Black tea, which has been fermented or oxidized, contains more of the flavonoids theaflavins and thearubigins. Both are water-soluble and readily absorbed into the body. For maximum concentration of flavonoids, steep tea for at least one minute. The longer the brew time, the higher the concentration of flavonoids and increased health benefits.

How is tea effective in health promotion? Research shows several conditions affected by flavonoids and perhaps other unidentified phytochemicals.

  • Heart disease: Tea drinkers may be more than one-third less likely to have a heart attack. Calcium deposits are linked to heart disease and other cardiovascular events. Buildup of these deposits, associated with plaque development in coronary arteries, is less in those who drink tea.
  • Dementia: Older adults with high levels of calcium plaques in their arteries are more likely to develop dementia earlier than those without calcium buildup. As in heart disease, tea seems to decrease the accumulation.
  • Neurological conditions: Antioxidants in tea have possible neuroprotective agents and may prove to reduce risks for Parkinson’s and Alzheimer’s disease.
  • Other diseases: Researchers have found favorable, but not conclusive, evidence of lower risks of skin disease, cancer, excessive weight, and other maladies in tea drinkers.

But is it the tea or something else? Although researchers have not found a direct relationship, tea drinkers tend to live healthier lifestyles. Whatever current and future findings, tea is a wholesome, inexpensive drink that contributes to a healthy diet.

Drink up!

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