Hyperoxaluria
(an increase in oxalate in the urine)

In Crohn's disease or small intestinal resection there is a malabsorption of bile and fatty acids.  The bile and fatty acids causes an increase absorption of oxalate in the colon.  The excess oxalate is excreted into the urine and precipitates stones.

High oxalate foods are , rhubarb, peanuts, chocolate, spinach, tomatoes and strongly brewed teas.

Vitamin C in more than 1 gram per day may cause an excess oxalate in the urine.  Pyridoxine or Vitamin B6 are needed in the metabolism of the precursors of oxalate.  A deficency of B6 may result in an increase in oxalate in the urine.

Hyperoxaluria my be inherited.  It is a rare autosomal recessive disorder.

Click here for recommended treatment.