Milk counteracts heart-health benefits of Tea

One study indicates that drinking milk in tea may reduce the health benefits…keep in mind while reading that this is an extremely small control group and there are other studies to contradict these findings…but we just want to present all the research we can find!

Gloria Tsang, RD on www.healthcastle.com
Researchers from Germany compared the health effects of drinking black tea with and without milk on 16 healthy women. Using ultrasound, they measured the function of an artery in the forearm before and two hours after drinking tea. Results showed black tea significantly improved blood flow and blood vessel elasticity compared with water, but the addition of milk completely blunted the heart health beneficial effects of tea. The results of this study were published online in the European Heart Journal in January 2007.

Whether it is black, green or red (oolong), all teas contain polyphenols that gives tea its antioxidant properties. Antioxidants may help protect our body from free radical damage. Indeed, tea ranks just as high or, in some cases, higher than many fruits and vegetables in the Oxygen Radical Absorbance Capacity or ORAC score, which measures antioxidant potential of plant-based foods. This study revealed that a type of protein found in milk called caseins decrease the amount of heart healthy compounds known as catechins that are found in tea.

It is important to note that this study is extremely small, comprising only 16 adults. In addition, it is the first human study. Therefore, more large-scale, better-designed research is needed to confirm the findings.

Bottom Line: Tea is a healthy beverage offering many health benefits (if you skip the cream and sugar). Brew your tea for at least 3 – 5 minutes to bring out the beneficial polyphenols. Enjoy the aroma of tea!

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One Response to “Milk counteracts heart-health benefits of Tea”

  1. Marlena says:

    I really must protest this tudy making the rounds of all the various tea articles, blogs, etc. It is a very poor study for several reasons: it is too small to be anywhere statistically accurate; it is too narrow a sample of people; the amount of milk used is a very great deal – far more than almost anyone would use and it was not longitudinal, meaning it apparently was a one shot deal – not something that measured the effects over a period of time – like a year. This is very poor science and should not be used in this manner.

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