If you have ever considered losing a few pounds while
gaining lean muscle mass than you are likely familiar with the old debate of
Soy vs. Whey protein. Personally I have
used Whey protein to lose a few pounds and I have found it to be easily
digestible and tastes great. I have
heard many things about Soy protein including that it triggers an increase in
estrogen. So, I wanted to find out which
protein is better.
Studies have clearly shown that Whey protein is the better
choice for increasing quality protein intake.
Research
groups suggest that the high amino acid content of whey protein supports an
optimal rate of protein buildup.
What’s even more
interesting is that a 12-week study conducted on two groups of individuals to
test the effectiveness of whey protein on weight loss. Showed that groups that
incorporated whey protein into their diet had less body fat and better
preservation of muscle mass.
So, if you are looking for a protein high in biological value
and a high fat loss capability, then Whey protein is the ‘Whey’ to go!
Soy vs. Whey Protein
Variable/Criteria
|
Soy
Protein
|
Whey
Protein
|
Better
Protein
|
Biological
Value (BV)
|
74
|
104
|
Whey
Protein
|
Net
Protein Utilization (NPU)
|
61
|
92
|
Whey
Protein
|
Protein
Efficiency Ration (PER)
|
2.2
|
3.2
|
Whey
Protein
|
Amino Acid
Score (AAS)
|
0.99
|
1.14
|
Whey
Protein
|
Protein
Digestibility Corrected Amino Acid Score (PDCAAS)
|
1.00
|
1.00
|
|
Protein
Digestibility Percentage (PD%)
|
95%
|
99%
|
Whey
Protein
|
Glutamine
per 100g of Protein
|
10.5g
|
4.9g
|
Soy
Protein
|
mg EAA per
g of Protein
|
378mg
|
480mg
|
Whey
Protein
|
Arginine
per 100g of Protein
|
7.6g
|
2.9g
|
Soy
|
References:
To purchase or learn more about Whey protein click here http://lisaehle.isagenix.com/us/en/isaleanshake_new.dhtml