June 19, 2013
June 12, 2013
Stephanie Hanes: Little girls or little women? The Disney princess effect
Fred Weir: In tweak to US, Russia would 'consider' asylum for Snowden
June 10, 2013
The Kosher Gourmet by Anjali Prasertong: A tart filling so good it might not make it to the crust
June 5, 2013
John Rosemond: Mom, Dad: Talk More and listen less
Egypt court sentences 43 pro-democracy workers to prison
June 3, 2013
Molly Hennessy-Fiske: Military judge to consider letting Fort Hood shooting defendant represent himself
May 29, 2013
Andrew Connelly and Helene Bienvenu: The Little Synagogue that Refused to Die
May 24, 2013
Rabbi Tzvi Hersh Weinreb: When I didn't so 'humbly disagree'
May 22, 2013
They launched the 'Arab Spring' but now yearn for the good old days of a strongman
May 20, 2013
Richard A. Serrano: Is Meir Kahane's assassin now a changed man?
Genetic copies of living people from embryos no longer science fiction
Jewz in the Newz by Nate Bloom :
The Kosher Gourmet by Cathy Pollak:
Jews Inducted into Rock Hall of Fame; Anton Yelchin co-stars in New "Trek" film; Kutcher (but not Kunis) visits Israel; Jewish TV Star Praises Jewish Rap Star
WARNING: This WALNUT CAKE WITH PRALINE FROSTING, perfect for afternoon coffee, is addicting
Jewish World Review
CLA supplements may not be worth it
Environmental Nutrition Newsletter
There are more questions than answers over impact. Learn the issues
Q. Do conjugated linoleic acid (CLA) supplements offer benefits?
A. Conjugated linoleic acid (CLA), found naturally in meat and milk, is a polyunsaturated fatty acid that's growing in popularity as a dietary supplement. Some supplement manufacturers make exuberant claims that CLA can help you lose weight, build muscle, and even fight diseases such as cancer and diabetes. However, the scientific evidence on this fatty acid is not so clear cut.
Here are some current areas of CLA research:
1. Body fat. Some studies have found that CLA supplementation can reduce body fat in overweight people, while other studies have found no improvement in body composition. A 2012 study published in Nutrition found that among 80 overweight and obese Chinese subjects, two daily doses of CLA (1.7 grams each) for 12 weeks reduced body fat by 2 percent, though cholesterol levels worsened slightly.
|FREE SUBSCRIPTION TO INFLUENTIAL NEWSLETTER|
Every weekday JewishWorldReview.com publishes what many in the media and Washington consider "must-reading". In addition to INSPIRING stories, HUNDREDS of columnists and cartoonists regularly appear. Sign up for the daily update. It's free. Just click here.
2. Heart disease. Some research supports that CLA can reduce the development of atherosclerosis--the formation of plaque in the arteries that leads to heart disease--by lowering levels of blood lipids, but a 2010 clinical trial did not find any anti-atherosclerotic effects from CLA treatment in overweight or obese participants.
3. Cancer. In test tube and animal studies, CLA seems to inhibit cancer cells, and high dietary CLA intake has been linked with lower risk of colorectal and breast cancer in women, but these results are preliminary.
4. Diabetes. CLA may improve fasting blood glucose, because of such factors as improvement in the body's response to insulin, body composition, and levels of the hormone leptin, which can influence appetite. But some studies have found that some forms of CLA supplements may worsen blood glucose control.
5. CLA and bone health. High dietary intake of CLA has been linked with improved bone mass, due to decreased fat levels in the body, but the research has been inconsistent in this area, possibly due to various levels of calcium intake.
THE BOTTOM LINE
There are more questions than answers over the impact of CLA on health. In fact, a 2011 review examining the evidence on CLA published in Nutrition Research Reviews concluded that almost all of the promising research has been in animal and test tube models; of human studies the only evidence that is broadly consistent is CLA's modest effect on body fat.
Several safety concerns have arisen, including possible pro-diabetic effects, increased size of liver and spleen, gastrointestinal upset, and altered nutritional value of breast milk in lactating women. For now, our best advice is to consume CLA as a part of your diet in meat and dairy products, but think twice about taking supplements. If you still feel a need to take them, first consult your health care provider to discuss whether they offer benefits for you.
(Reprinted with permission from Environmental Nutrition, a monthly publication of Belvoir Media Group, LLC. 800-829-5384. www.EnvironmentalNutrition.com.)
Interested in a private Judaic studies instructor for free? Let us know by clicking here.
Sign up for the daily JWR update. It's free. Just click here.
To comment, please click here.
© 2012, Belvoir Media Group, LLC. DISTRIBUTED BY Tribune Media Services