New study suggests combining soy,
whey and casein supports long-term
gain in lean muscle mass
Protein
Protein is a key nutritional component needed to promote muscle
growth and maintenance. Research has shown soy-dairy protein
blend ingestion prolongs the muscle protein synthesis response in
combination with resistance exercise. A recent study also found
long-term use of a soy-dairy protein blend supplement may enhance
muscle gains when provided for 3 months along with participation in a
resistance exercise program.
The anabolic potential of the blend has recently been demonstrated in
acute studies that show prolonged delivery of amino acids to muscle
when a blend of soy and dairy proteins is consumed after exercise.1,2
Soy Dairy Blend leads to greater increase in muscle gain
Protein Blend leads to greater increase in muscle
andgain
a higher
of subjects
who gained
muscle
and a percentage
higher percentage
of subjects
who gained
over
the “expected
gain fromgain
exercise.
muscle
over the “expected
from”exercise.”
Promotion
of skeletal
muscle mass
Study Design
68 young recreationally active men participated in resistance
exercise training for 3 months3
Assigned to consume one of three treatments
(22g supplements) daily for the duration of the study:
• Soy-dairy protein blend
• Whey protein isolate
• Isocaloric carbohydrate (maltodextrin)
Study Outcomes
Both protein supplements support similar and significant
muscle mass gains, compared to carbohydrate placebo.
Consuming a soy-dairy protein blend containing DuPont™
Danisco® soy protein during a resistance exercise training
program can help enhance and prolong lean mass growth,
especially in the upper body.
No changes in testosterone levels were found during
the 12 weeks of supplementation.
Sustained
amino acid
availability
Resistance
exercise
Long-term
adherence
to fitness
program
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Lean Body Mass Gains With Exercise & Protein
Soy dairy blend finishes strong
% of subjects
exceeding 1.5kg
lean mass gain.
50%
87%
77%
Expected
gain from
exercise
Muscle gain (kg)
Whey Protein
Soy Dairy Blend
Maltodextrin Placebo
Average
change for
all subjects
Study Outcomes
Continued
Soy-dairy protein blend
may help prolong gains
during a long-term
training program:
• Only subjects consuming
the protein blend
continued to gain arm,
trunk and whole body
muscle mass during the
last 6 weeks of training.
Both protein groups had
greater number of subjects who
are responders, compared to
placebo. Protein supplementation
helped to ensure gains in muscle
with participation in a
training program.
References
Starting
line
Represents the average change in muscle mass.
1.
Reidy PT, Walker DK, Dickinson JM, Gundermann DM, Drummond MJ,
Timmerman KL, Cope MB, Mukherjea R, Jennings K, Volpi E, and Rasmussen
BB. Soy-dairy protein blend and whey protein ingestion after resistance exercise
increases amino acid transport and transporter expression in human skeletal
muscle. Journal of Appl Physiol. doi:10.1152/ japplphysiol.01093.2013.
2.
Reidy PT, Walker DK, Dickinson JM, Gundermann DM, Drummond MJ,
Timmerman KL, Fry CS, Borack MS, Cope MB, Mukherjea R, Jennings K, Volpi E,
and Rasmussen BB. Protein blend ingestion following resistance exercise promotes
human muscle protein synthesis. Journal of Nutrition 143: 410-416, 2013.
3.
Reidy PT, Borack MS, Markofski MM, Deer RR, Dickinson JM, Husaini SH,
Walker DK, Jennings K, Cope MB, Mukherjea R, Volpi E, Rasmussen BB. The
Effect of Soy-Dairy Protein Blend Supplementation during Resistance Exercise
Training. FASEB, 2015.
About DuPont Nutrition & Health
DuPont is a market-driven science company. Our vision is to be the world’s most dynamic science company, creating sustainable
solutions essential to a better, safer, healthier life for people everywhere. DuPont’s reach extends around the world, with more
than 10,000 scientists and engineers in more than 150 research centers in 35 countries.
DuPont Nutrition & Health combines in-depth knowledge of food and nutrition with current research and expert science
to deliver unmatched value to the food, beverage and dietary supplement industries. We are innovative solvers, drawing on deep
consumer insights and a broad product portfolio to help our customers turn challenges into high-value business opportunities.
HO 40-1 US • 05.15
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du Pont de Nemours and Company or its affiliated companies.
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