Table 1.

Study design

Controlled diet	Normal-oxalate diet	Oxalate-rich diet						Normal-oxalate diet
Phase	Baseline	Control	Intervention					Follow-up
Week	Week 0	Week 1	Week 2	Week 3	Week 4	Week 5	Week 6	Week 10
Lactic acid bacteria			X	X	X	X	X
24 h-urine	X	X	X	X	X	X	X	X
Blood sample	X						X