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Here are links to the products in question.
Status: LE Employee
Last Login: Yesterday @ 4:33:10 PM
There have been no side by side clinical trials comparing their benefits with the exception of those which evaluated satiety: http://www.ncbi.nlm.nih.gov/pubmed/22196620 and http://www.ncbi.nlm.nih.gov/pubmed/18345020
This one which used rats suggests a stronger antihypertensive effect for pea protein via ACE inhibition: http://www.ncbi.nlm.nih.gov/pubmed/16361182 and this one http://www.ncbi.nlm.nih.gov/pubmed/12647949 suggests a stronger benefit for whey.
Some people use whey because studies have shown a number of benefits. See
Yet similiar benefits may be associated with the plant protein product. See http://www.lef.org/magazine/mag2010/nov2010_Halt-Age-Related-Muscle-Loss_01.htm :
"This supplement contains a proprietary blend of pea, rice, and artichoke proteins and mixes with water to make an instant low-fat, cholesterol-free drink with a biological value and digestibility score equal to whey and egg protein."
"A new proprietary plant protein product enriched with branched-chain amino acids and glutamine has a perfect PDCAAS (protein digestibility corrected amino acid score) of 1.0 (100%), which is equal to the PDCAAS of whey and egg."
"A recent study found that compared to consuming 15 grams whey or milk protein (casein), ingesting 15 grams pea protein provided greater postprandial (after-meal) satiety."
"Pea protein contains more glutamine than whey or egg protein, with comparable BCAA values to whey, egg, and casein."
"Although numerous studies have established the value of consuming whey protein to boost tissue levels of the antioxidant glutathione, research scientists very recently discovered that compared to glutathione, pea protein hydrolysate exhibited a significantly higher ability to inhibit fatty acid oxidation and to chelate free radical-causing metals."
Many people make their selection based on a preference for non-animal products such as pea protein.