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Today's Daily Health Tip
Yellow Pea Protein: A Hypoallergenic Protein Alternative
by Jennifer Good     This week's featured ingredient is a plus for vegans, those with soy or dairy allergies, or who are lactose intolerant. As we continue to explore new healthy ingredients, this week finds us delving a little deeper into the protein family, or more specifically, pea protein. Pea protein is the concentrated natural protein fraction of yellow peas. The process used for concentrating pea protein is water based, making the end product very "natural." When it comes to perception, more people have a problem with the "idea" of pea protein than with rice protein. But in fact, pea protein has a very mild, pleasantly sweet taste. It's one of the better tasting proteins.
Yellow pea protein has enormous benefits as a protein source in combination with rice protein, as it's hypoallergenic, easily absorbed by the body, easy to digest and cholesterol-free, and unlike other protein sources, doesn't lead to aminoacidemia or intestinal toxemia. And now, it turns out, it also may be anti-hypertensive and beneficial to the kidneys!
Research out of the University of Manitoba in Winnipeg, Canada, has uncovered a surprising natural treatment of yellow pea protein that may help control hypertension without incurring the high cost or potential danger of drugs.(1) Plus, the treatment seems to prevent or at least moderate the impact of kidney disease, which typically leads to high blood pressure and concomitant cardiovascular complications.(2) The treatment originates with the humble yellow garden pea, a key ingredient in Indian dal and other vegetarian favorites. The research team fed small amounts of pea protein hydrolysate extracted from yellow peas to rats for eight weeks, and by the end of that time, the rats showed a 20 percent drop in blood pressure compared to rats on a regular diet.
Since kidney disease usually leads to hypertension, and most people who have chronic kidney disease actually die from the resultant cardiovascular complications of high blood pressure, the scientists intentionally bred rats that had a severe type of kidney disease(3) to see how the pea protein would impact them. And they discovered that not only did the pea protein lower their blood pressure, but it also increased urine output by 30 percent (4), indicating a significant improvement in kidney function since those with kidney damage often have impaired urine flow and so can't rid the body of toxins. It also increased the presence of a key protein in kidney tissues.
While this is amazing news, it's important to note that eating peas for dinner won't do the trick. The protein needs to be isolated and activated with enzymes. Yellow peas by themselves are ineffective because their protein content is low and is bound to carbohydrates. The process for extracting and purifying concentrated protein from yellow peas incorporates water and enzymes. The net result is the concentrated protein hydrosylate that the researchers found to be:
* Hypoallergenic
* Highly bio-available
* Pleasant tasting
* Helps lower high blood pressure
* Moderates the impact of kidney dysfunction
What's not to love?
For an in-depth look at protein and how it affects your health, click here.
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References:
(1) Li H, Prairie N, Udenigwe CC, et al. "Blood pressure lowering effect of a pea protein hydrolysate in hypertensive rats and humans." J Agric Food Chem. 2011 Sep 28;59(18):9854-60. Epub 2011 Sep 2. http://www.ncbi.nlm.nih.gov/pubmed/21854068
(2) R.E. Aluko and Aukema, H.M. Effects of a novel pea protein hydrolysate on hypertension and chronic kidney disease
(3) http://www.medicalnewstoday.com/articles/143262.php
(4) Lyn Patrick. ""Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Trial."Beta-Carotene: The Controversy Continues." AMR 2000 v5 n6. http://altmedrev.com/sobi2.html?sobi2Task=dd_download&fid=280
(5) ACS: Pea Protein May Help Hypertension, Kidney Function
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