Milk beats soy for muscle gain

Apr 09, 2007

Got milk? Weightlifters will want to raise a glass after a new study found that milk protein is significantly better than soy at building muscle mass.

The study, conducted by a team of researchers at McMaster's Department of Kinesiology, was recently published in the American Journal of Clinical Nutrition. It compared how much muscle protein young men gained after completing a heavy weight workout followed by consumption of equivalent amounts of protein as either fluid skim milk or a soy drink.

"Our thinking going into the study was that milk would be better than soy," says Sarah Wilkinson, lead researcher and a graduate student in the Department of Kinesiology. "We suspected this would be the case because of work done by French researchers. However, we were really impressed by how much greater the gains in muscle protein with milk were."

The findings would suggest that if men consume only skim milk (two cups) after each of their workouts, they would gain almost twice as much muscle in 10 weeks than if they drank the same amount of protein as a soy drink.

"This is an interesting finding, since soy and milk proteins are considered to be complete proteins that are basically equivalent from a nutritional standpoint," explains Stuart Phillips, associate professor of kinesiology, who was also involved in the study. "Our findings clearly show that milk proteins are a superior source of protein in producing muscle mass gains in response to weightlifting."

Scientists also analyzed the composition of milk and soy proteins and did not find remarkable differences. At this stage, researchers are uncertain why milk proteins were so much more effective than soy. However, the two main types of proteins in milk, whey and casein, may have intrinsic properties that are advantageous for supporting muscle growth.

"The plan at this point is to follow this up with a long-term study to see if the findings from this short-term study can be replicated," says Phillips.

Source: McMaster University

Explore further: What to do with kidneys from older deceased donors?

add to favorites email to friend print save as pdf

Related Stories

Scientist says slimming soybeans are on the horizon

Apr 01, 2010

If you're serious about losing weight, check out recent studies done in Elvira de Mejia's University of Illinois laboratory. Her research provides insight into the way a certain type of soy protein inhibits fat accumulation ...

Exercising muscles need proper nutrients

Jan 16, 2009

My friend's teen daughter Kaitlyn commented on the meals she and her brother Ben had on a recent outdoor excursion with their uncle and cousins... all males.

Of Mice and Peanuts: A new mouse model for peanut allergy

Jan 12, 2009

Chicago researchers report the development of a new mouse model for food allergy that mimics symptoms generated during a human allergic reaction to peanuts. The animal model provides a new research tool that will be invaluable ...

Recommended for you

Obese British man in court fight for surgery

Jul 11, 2011

A British man weighing 22 stone (139 kilograms, 306 pounds) launched a court appeal Monday against a decision to refuse him state-funded obesity surgery because he is not fat enough.

2008 crisis spurred rise in suicides in Europe

Jul 08, 2011

The financial crisis that began to hit Europe in mid-2008 reversed a steady, years-long fall in suicides among people of working age, according to a letter published on Friday by The Lancet.

New food labels dished up to keep Europe healthy

Jul 06, 2011

A groundbreaking deal on compulsory new food labels Wednesday is set to give Europeans clear information on the nutritional and energy content of products, as well as country of origin.

Overweight men have poorer sperm count

Jul 04, 2011

Overweight or obese men, like their female counterparts, have a lower chance of becoming a parent, according to a comparison of sperm quality presented at a European fertility meeting Monday.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.