WebMD Medical News
Louise Chang, MD
Oct. 19, 2009 (Philadelphia) -- There's a new reason to drink plenty of
water and skim milk: Both may help to prevent painful gout attacks, new studies
"With gout, we spend a lot of time telling patients what they can't do -- to
avoid beer and red meat, for example," says University of Auckland
rheumatologist Nicola Dalbeth, MD, who headed the milk study.
"It's useful to have something we can tell them they can do" to help control
their disease, she tells WebMD.
The studies were presented at the annual meeting of the American College of
Gout, a type of arthritis that occurs most frequently in overweight,
middle-aged men, is caused by the buildup of uric acid and needle-like crystals
in the joints.
While there is certainly a genetic link to the disease, there is no question
that lifestyle is a key contributing factor.
One recently identified trigger for the painful attacks is dehydration. So
researchers set out to determine if drinking water could be an antidote.
Using ads on Google, the researchers recruited 535 people who said they had
a gout attack within the past year. Participants' medical records were used to
confirm the diagnosis.
Within two days of an attack, participants logged onto a special web site
and answered questions about what they ate and drank in the 24 hours preceding
the attack. Then, they were asked to log in another time, when they were
gout-free, and answer the same questions.
Results showed the more water they drank, the lower their risk of recurrent
gout attacks. "For example, having five to eight glasses of water in the past
24 hours was associated with a 40% lower risk of having a gout attack, compared
with drinking none or one glass of water in the past day," says Tuhina Neogi,
MD, PhD, assistant professor of medicine at Boston University School of
Neogi stresses that people with gout shouldn't substitute water for other
treatments their doctors prescribe.
"But this suggests that dehydration may indeed be an important trigger for
gout attacks, and that drinking water may be a simple intervention to help
reduce the risk of recurrent attacks," she tells WebMD.
Previous studies have shown that people who drink a lot of milk have a lower
risk of developing gout, Dalbeth says.
So she and colleagues decided to study the effects of skim milk on blood
uric acid concentrations, which, when elevated, raise the risk of gout.
The researchers collected blood and urine samples from 16 volunteers
immediately before they drank soy or skim milk and then hourly over a
Results showed that after they drank soy milk, levels of uric acid rose 10%
over a three-hour period. Drinking skim milk led to a 10% drop in uric acid
levels. In comparison, Zyloprim, a standard medication used to treat gout,
results in a 20% to 30% drop in uric acid, Dalbeth tells WebMD.
She credits a substance in skim milk called orotic acid that promotes uric
acid removal by the kidneys.
The researchers are now studying the longer-term effects of milk in people
Elaine Husni, MD, a rheumatologist at the Cleveland Clinic, says it's too
early to make recommendations based on either study. "But water and milk are
such common staples and they're something people can control."
For more on the causes, symptoms, and treatment of gout, see WebMD's Gout Slideshow.
SOURCES:American College of Rheumatology Annual Meeting, Philadelphia, Oct. 17-21,
2009.Nicola Dalbeth, MD, University of Auckland, New Zealand.Tuhina Neogi, MD, PhD, assistant professor of medicine, Boston University
School of Medicine.Elaine Husni, MD, Cleveland Clinic.
The Health News section does not provide medical advice, diagnosis or treatment. See additional information.