A biological understanding of why soy may result in less abdominal fat.
Image thanks to brownpau.
You may remember this study from two years ago that had a really mysterious result. People fed the exact same diet, but just had the dairy protein replaced with soy and there was a significant drop in abdominal fat? Same calories, but instead of abdominal fat growing, it seemed to melt away. We’re finally understanding the biology behind this.
This year in the journal of nutritional biochemistry scientists found that soy helps prevent human fat cells from taking up fat in the first place. They put a layer of human fat cells in a petri dish and as the concentration of the soy isoflavone was increased, the fat accumulation within the fat cells dropped—and these are the kinds of blood levels we can get incorporating soy into our diet.
Here’s what it looked like under the microscope. These are the individual fat cells and the fat inside is stained red here for better contrast. So this is the control with no soy phytonutrients. Here’s what it looked like after adding a tiny bit of soy, 3 micrograms. then a little more more more and finally 50 micrograms, where fat uptake was almost completely blocked.
In fact these phytoestrogens are so amazing that the meat industry bragged this year in their trade journals that phytoestrogens have been found in animal products. Not a surprise, really, given that animals eat plants, but should the meat industry really be bragging? Let’s look at the numbers: Beef or chicken has about 4—veggie burgers have 4,000. Dairy milk has 6, but soy milk has 6000. No contest, really.
What about this, though? Reports last Summer linking tofu to dementia? And here’s the study plain as day: Tofu intake associated with worse memory. So what do you think?
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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Please feel free to post any ask-the-doctor type questions here in the comments section and I’d be happy to try to answer them. And check out the prequel, "Waistline Expanding Food." Also, there are 1,449 other subjectscovered in the rest of my videos--please feel free to explore them as well!