Milk Cancels Health Benefits of Tea
Noooooooooooooooooooooooooooooo. We drink tea. Lots of tea. We like tea with milk, so we're hoping against hope that a new study saying milk eliminates the health benefits of tea is wrong. Argh!
- Research has shown that tea improves blood flow and the ability of the arteries to relax but researchers at the Charite Hospital at the University of Berlin in Mitte found milk eliminates the protective effect against cardiovascular disease.
"The beneficial effects of drinking black tea are completely prevented by the addition of milk, said Dr Verena Stangl, a cardiologist at the hospital.
"If you want to drink tea to have the beneficial health effects you have to drink it without milk. That is clearly shown by our experiments," she told Reuters.
Milk cancels health benefit of drinking tea: study [Reuters]
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To further dwarf's point: if there are an unknown number of coins in a bag, and you randomly remove and then replace one, 16 times, if you get a penny every time, odds are you can say the bag is predominantly pennies. You don't need to do it 500 times. Now, I'm sure their data isn't this clean, but you get the point.
The sample size IS a bit low. In the statistics and research methods classes I took in college, we learned that 30 was the smallest sample size that could still represent a population. Bigger sample sizes are better, of course, but 30 was usually enough to cover most human anomalies.
16? I'm mistrustful of the results.
Milk in tea? Gross.
For you blood donors out there: Did you know that tea reduces your iron levels? Last time I tried to donate they wouldn't let me because my iron was too low. One of the first things she asked was if I drink a lot of tea - sure enough, I have at least a cup every morning instead of coffee. It's no big deal (especially for guys who have higher iron levels) but if you tend to be on the low end of the iron scale, just cut the tea out for a week or two before you donate blood.
The sample size is low, only on women, and measured for one criteria- dilation of the arteries. Not only that, this doesn't even begin to address anything approaching long-term benefits. So they go on to say that this completely "Cancels" ALL the health benefits of EVERY kind of tea? that's a bit like standing in the sand trap on a golf course, deducing that you must be in the Sahara.
Then they go on to make what is at best incompletely supported claim:
"If you want to drink tea to have the beneficial health effects you have to drink it without milk."
You'd think something like that would require a little bit more study, and perhaps more of a cause then "casein cancels out the good stuff"
"So they go on to say that this completely "Cancels" ALL the health benefits of EVERY kind of tea? that's a bit like standing in the sand trap on a golf course, deducing that you must be in the Sahara."
The scientific journal submission likely addressed all your concerns, but journalism ain't science. And blog posts ain't journalism.
Asian tea rocks! green tea, jasmine tea, oolong tea, black tea, etc...Milk? in tea? heresy! and none of those prissy lemons & sugar either. Proper Chinese tea has none of those! :D
ummm...also I'm suspicious of the sample size & methodology of the study. But I don't take studies in newspapers at face value anyway. In a college class, we compared actual studies to the newspaper reporting of them, and they were almost always at least somewhat wrong. Sometimes minor, sometimes major, and always with some differences in implications, caveats, etc. Newspapers just usually don't report science that well.
I'd like to think i'm pretty neutral on this. (I drink only decaffinated gren tea straight up) And I'll acknowledge that there is a great deal of media spin on this, but the fact of the matter is, any findings from this study are certainly subject to further inquiry before proclaiming that milk and tea don't mix.






















Wow. They studies a whole 16 people for this one. Impressive.