American Journal of Clinical Nutrition, Vol 56, 255S-257S, Copyright © 1992 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Cholelithiasis in patients treated with a very-low-calorie diet

RO Kamrath, LJ Plummer, CN Sadur, MA Adler, WJ Strader, RL Young and RL Weinstein
Contra Costa Endocrine Associates, Walnut Creek, CA.

One hundred seventy-nine obese patients (mean body mass index = 36.3) were retrospectively evaluated for the development of cholelithiasis associated with the use of a 2530-kJ/d (605-kcal) very-low-calorie diet (VLCD). Nine percent of patients had preexisting gallstones and 11% of patients developed gallstones either during or within 6 mo of completing the diet. Six percent had subsequent cholecystectomy. Ursodeoxycholic acid administered to one patient resulted in spontaneous stone dissolution whereas spontaneous dissolution occurred in three patients. Surveys of patients at three other programs using the same diet yielded similar incidence of gallstones. We conclude that rapid weight loss associated with the use of VLCD is associated with a significant incidence of gallstone formation. VLCD should be physician supervised because resolution of cholelithiasis spontaneously, with stone passage, or dissolution with ursodeoxycholic acid therapy may reduce the need for cholecystectomy.

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