Diet and supplements: What's good and bad for kidney disease patients
Two studies presented during the American Society of Nephrology's Annual Kidney Week provide new information on dietary benefits and dangers in kidney disease patients.
Lilach Shema, PhD (Western Galilee Medical Center in Israel) and colleagues investigated the long-term effects of drinking pomegranate juice on heart disease risk factors -- such as high cholesterol and blood pressure -- in kidney disease patients. Pomegranate juice is rich in antioxidants and has been touted as having a variety of health benefits.
The researchers randomized 101 dialysis patients to receive about three-and-a-half ounces of pomegranate juice or placebo, three times a week. After one year, the number of blood pressure drugs patients took decreased in 22% of patients drinking pomegranate juice compared to 7.7% in the placebo group, while an increase was documented in 12.2% of patients drinking pomegranate juice compared to 34.6% in the placebo group. Patients who drank pomegranate juice also had healthier blood pressure and cholesterol levels and less plaque build-up in their arteries. These results suggest that drinking pomegranate juice might decrease the high rates of illness and death among kidney disease patients.
Another team led by Vanessa Grubbs, MD (University of California, San Francisco) looked at the use of dietary supplements among patients with chronic kidney disease (CKD). The National Kidney Foundation identifies 39 herbs that may be harmful to CKD patients, but no one knows how many of these patients take them.
Using data from the 1999 to 2008 annual National Health and Nutrition Examination Survey (NHANES), a program of studies designed to assess the health and nutritional status of adults and children in the United State, the investigators examined the reported use of dietary supplements in the past 30 days among 21,169 adults. While an estimated 52.4% of participants reported taking any dietary supplement, the supplement was potentially harmful among 15.3%. Use of supplements was not statistically different by CKD severity.
Because many CKD patients use potentially harmful supplements, they may be unaware of their risks. "Although people tend to think of dietary supplements as healthy, many contain ingredients that can actually be harmful to the kidneys," said Dr. Grubbs. Healthcare providers, too, may be unaware that some supplements are potentially harmful and that patients with CKD are taking them. Further research and education are warranted.
More information: Study authors for "Pomegranate Juice Intake Attenuates Traditional Cardiovascular Risk Factors in Hemodialysis Patients: A Randomized Placebo Controlled Trial" (abstract FR-PO1660) include Lilach Shema, PhD, Liora Ore, MD, Shifra Sela, Ronit Geron, MD, Galina Shapiro, and Batya Kristal, MD.
Study authors for "Prevalent Use of Dietary Supplements Potentially Harmful in Chronic Kidney Disease in the United States" (abstract TH-PO267) include Vanessa Grubbs, MD, Laura Plantinga, Delphine Tuot, MD, Elizabeth Hedgeman, Rajiv Saran, MD, Sharon Saydah, Deborah Rolka, and Neil Powe, MD.
Provided by American Society of Nephrology
- Pomegranate juice: Beyond antioxidants, potential benefits for dialysis patients Nov 19, 2010 | not rated yet | 0
- Waste peel from pomegranate juice factories makes healthy cattle feed Dec 08, 2008 | not rated yet | 0
- Kidney drugs hampered by high blood phosphate Aug 18, 2011 | not rated yet | 0
- Low thyroid function common in chronic kidney disease Jun 11, 2008 | not rated yet | 0
- POM Wonderful 100% Pomegranate Juice may improve erectile dysfunction Jul 02, 2007 | not rated yet | 0
- Motion perception revisited: High Phi effect challenges established motion perception assumptions Apr 23, 2013 | 3 / 5 (2) | 2
- Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update) Apr 02, 2013 | 4.5 / 5 (11) | 5
- The visual system as economist: Neural resource allocation in visual adaptation Mar 30, 2013 | 5 / 5 (2) | 9
- Separate lives: Neuronal and organismal lifespans decoupled Mar 27, 2013 | 4.9 / 5 (8) | 0
- Sizing things up: The evolutionary neurobiology of scale invariance Feb 28, 2013 | 4.8 / 5 (10) | 14
Classical and Quantum Mechanics via Lie algebras
Apr 15, 2011 I'd like to open a discussion thread for version 2 of the draft of my book ''Classical and Quantum Mechanics via Lie algebras'', available online at http://lanl.arxiv.org/abs/0810.1019 , and for the...
- More from Physics Forums - Independent Research
More news stories
Bacteria resistant to the antibiotic colistin are also commonly resistant to antimicrobial substances made by the human body, according to a study in mBio, the online open-access journal of the American Society for Microb ...
Diseases, Conditions, Syndromes 1 hour ago | not rated yet | 0
(AP)—Federal investigators probing the hantavirus outbreak blamed for three deaths at Yosemite National Park recommend that design changes to tent cabins and other lodging run by private concessionaires first be reviewed ...
Diseases, Conditions, Syndromes 7 hours ago | not rated yet | 0
A new diagnostic test for a worm infection that can lead to severe enlargement and deformities of the legs and genitals is far more sensitive than the currently used test, according to results of a field ...
Diseases, Conditions, Syndromes 7 hours ago | not rated yet | 0 |
A Saudi man who had contracted the coronavirus has died, raising the death toll in the kingdom from the SARS-like virus to 16, the health ministry announced on Monday on its Internet website.
Diseases, Conditions, Syndromes 9 hours ago | not rated yet | 0
A new "telerehabilitation" approach lets physical therapists assess patients with low back pain (LBP) over the Internet, with good accuracy compared with face-to-face examinations, reports a study in the May 15 issue of Sp ...
Diseases, Conditions, Syndromes 9 hours ago | not rated yet | 0
Early-life exposure to traffic-related air pollution was significantly associated with higher hyperactivity scores at age 7, according to new research from the University of Cincinnati (UC) and Cincinnati Children's Hospital ...
1 hour ago | not rated yet | 0 |
(Medical Xpress)—A research team, led by Jeremy Barr, a biology post-doctoral fellow, unveils a new immune system that protects humans and animals from infection.
6 hours ago | 4.5 / 5 (11) | 1 |
New research suggests that a compound abundant in the Mediterranean diet takes away cancer cells' "superpower" to escape death. By altering a very specific step in gene regulation, this compound essentially re-educates cancer ...
9 hours ago | 4.8 / 5 (9) | 2 |
Researchers have pinpointed a catalytic trigger for the onset of Alzheimer's disease – when the fundamental structure of a protein molecule changes to cause a chain reaction that leads to the death of neurons ...
10 hours ago | 5 / 5 (3) | 0 |
Salamanders' immune systems are key to their remarkable ability to regrow limbs, and could also underpin their ability to regenerate spinal cords, brain tissue and even parts of their hearts, scientists have ...
10 hours ago | 5 / 5 (4) | 2 |
Turns out, that old "practice makes perfect" adage may be overblown. New research led by Michigan State University's Zach Hambrick finds that a copious amount of practice is not enough to explain why people ...
7 hours ago | 3.3 / 5 (10) | 0 |