Navigation Links
Dieters should eat foods rich in protein, mostly from dairy, to protect bones during weight loss
Date:11/30/2011

New research suggests that a calorie-restricted diet higher in proteinmostly from dairy foodsand lower in carbohydrates coupled with daily exercise has a major positive impact on bone health in overweight and obese young women.

The study, published online in the Journal of Clinical Endocrinology and Metabolism, found bone health improvements were particularly evident due to the high density of bone-supporting nutrients such as calcium, vitamin D and dairy-based protein.

For 16 weeks, three groups of overweight and obese, but otherwise healthy, premenopausal women each consumed either low, medium or high amounts of dairy foods coupled with higher or lower amounts of protein and carbohydrates. Calcium and vitamin D levels were also graded from low to high across the groups in conjunction with the dairy foods they consumed.

The women exercised seven days per week, a routine that included aerobic exercise every day and two additional workouts of circuit weightlifting per week.

"Our findings demonstrate the importance of diet composition to the maintenance of bone health status during weight loss," said Andrea Josse, of the Department of Kinesiology at McMaster and lead author of the study. "Our data clearly show dairy-source protein is important when aiming to avoid harmful consequences such as accelerated bone loss during weight loss. In our view, young women attempting to lose weight should consume a diet higher in dairy-source protein."

A previous study from the same team in the same subjects showed that there were identical total weight losses across the groups, but very different results for body composition change with the higher-protein, high-dairy group experiencing greater whole-body fat and abdomen fat losses and greater lean mass gains.

The same subjects consuming higher-protein and high-dairy diets for this study also showed the greatest improvements in markers of bone formation, no change in bone loss, an increase in circulating vitamin D levels, and a decrease in levels of parathyroid hormone, which when elevated is typically associated with bone loss.

Maintaining or even improving bone health in young women, particularly in those trying to lose weight, is important for overall health, and may have great implications for decreasing the risk of diseases like osteoporosis later in life, say the researchers.

"Our data provide further rationale to recommend consumption of dairy foods to aid in 'high quality' weight loss, which we defined as loss of fat and sparing of muscle, and the promotion of bone health in young women," says Stuart Phillips, senior author and a professor in the Department of Kinesiology. "These women are not only at the age when achieving and maintaining peak bone mass is of great importance, but in whom adequate dairy consumption would offset sub-optimal intakes of calcium and vitamin D."

Subjects undergoing weight loss while consuming marginally adequate protein without dairy foods showed markedly elevated levels of markers of bone loss indicating that following such a diet in the long-run would weaken bones.


'/>"/>

Contact: Michelle Donovan
michelle.donovan@mcmaster.ca
905-525-9140
McMaster University
Source:Eurekalert

Related medicine news :

1. Magical thinking helps dieters cope with unrealistic expectations
2. Dieters More Likely to Trust Food Packaging
3. When a salad is not a salad: Why are dieters easily misled by food names?
4. Brilliance Weight Loss Takes Dieters Beyond Trendy Low Fat Diets
5. Health-care providers should be alert to risk of suicide among pregnant women and new mothers
6. Allergy Sufferers Should Prepare for Holiday Triggers
7. Should we prepare for the end? New report calls for decriminalization of assisted dying in Canada
8. Girls with family history of breast disease should avoid alcohol
9. Internists to reveal top 10 reasons why Congress should repeal the SGR now
10. Lower dose of corticosteroids just as effective as higher for shoulder pain
11. Policymakers should prepare for major uncertainties with Medicaid expansion
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/25/2017)... ... ... Swissray is pleased to announce the release of the ELITE DXA, a new bone ... scan window, which is more than double that of existing bone densitometers. Historically, subjects ... an accurate total body bone density or body composition study. The ELITE DXA ...
(Date:3/24/2017)... ... March 24, 2017 , ... ... at the same time by providing Prehospital Trauma Life Support (PHTLS) course scholarships ... world’s premier prehospital trauma education developed in cooperation with the American College of ...
(Date:3/24/2017)... (PRWEB) , ... March 24, 2017 , ... ... from third world countries to hospitals in the United States, it’s a threat ... on the current obstacles facing infection prevention and offers strategies for the healthcare ...
(Date:3/24/2017)... ... , ... The Radiology Business Management Association (RBMA) has named the ... their 12th year, are among the most prestigious in radiology marketing because a panel ... retooled to recognize achievements in both large budget (over $5,000) and small budget (under ...
(Date:3/24/2017)... ... March 24, 2017 , ... Texas Physical Therapy Specialists (TexPTS) is ... 9618 Huebner Road. The clinic is the group’s 7th location in San Antonio and ... Higgins, PT, will provide care from the clinic, which opened March 22, 2017. ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... 2017  Zymo Research Corp., also known ... Inc., who designs, manufactures and distributes liquid ... teams Zymo Research,s DNA methylation detection and ... products with Hamilton,s high-throughput automation platforms. Zymo ... microbiomics and RNA isolation for use on ...
(Date:3/24/2017)... , March 24, 2017   The ... organization within medical affairs in the pharmaceutical industry ... the chair of a newly formed scientific advisory ... members to form the first ever medical affairs ... For more information about the ACMA, please visit  ...
(Date:3/24/2017)... DUBLIN , Mar. 24, 2017 Research and ... (IPF) Pipeline Analysis, 2016" report to their offering. ... The IPF pipeline is very strong with ... Corporation, Merck & Co., Inc., Biogen and Sanofi are involved in the ... candidates, of which one is in Phase III stage, 15 are in ...
Breaking Medicine Technology: