Q: Does daily wine consumption increase the chance of developing kidney stones? Is it OK for people with kidney stones to drink wine?—Nicole, Toronto, Canada
A: Kidney stones are hard deposits of minerals and salts that form in the kidneys and cause severe pain when passing through the urinary tract. There are numerous risk factors, from dehydration to obesity to family history, but experts agree that moderate wine consumption does not cause kidney stones.
"Daily wine consumption does not increase the risk of kidney stones," University of Chicago Medical Center chronic kidney disease nutrition and education specialist Melanie Betz told Wine Spectator. "However, dehydration can make kidney stones worse, and any alcohol in excess can cause dehydration."
In fact, Betz says some studies have found a lower risk of kidney stones in those who drink in moderation, especially wine. She adds that it’s OK for people experiencing kidney stones to consume wine, but she recommends drinking an extra glass of water for every glass of wine to help prevent dehydration.
Consult your nephrologist for more information on daily wine consumption and kidney health.—Shawn Zylberberg