Does soymilk have the same tea phytonutrient blocking effects as cow’s milk?
Image thanks to Sarah Gilbert.
In 2007 we learned that milk blocks the absorption of the phytonutrients in chocolate. In 2008 we learned that milk may completly block the beneficial effects of the phytonutrients in tea. Might as well just be drinking water. In 2009, soy milk was tested.
The reason cow milk blocks the benefits of tea is because the milk protein casein binds up the phytonutrients in tea. Since soy milk doesn’t have casein, though, one would assume that adding soy milk to tea is fine, but you never know until you run the experiment.
What do you think? Soy milk blocks the benefits of tea: fact or fiction? Let’s look at the data: This is measuring the beneficial effects on arterial cells in a petri dish. Here’s the control, plain water. Then comes, the plain black tea, no creamer, and you can see the spike in beneficial effects that appear completely blocked by milk. Then they tried three types of soymilk: sweetened, calcium-enriched, and unsweetened. All of which, had the same effect as milk! Fact, vascular effects of tea are suppressed by soy milk.
Now this was in vitro, in a petri dish. We don’t know if this translates into actual people, but until we do know more I encourage folks to drink their tea straight. And, as I’ve noted in previous volumes, green tea is healthier than black.
To see any graphs, charts, graphics, images, and quotes to which Dr. Greger may be referring watch the above video. This is just an approximation of the audio contributed by veganmontreal.
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