If U oxalate 0 5 1 mmol day due to hyperabsorption of oxalate or extreme dietary intake give Ca 1 2 g day beware excess Ca excretion Strong 1 plus Mg 200 400 mg day low evidence Consider alkaline citrates to replace citrate loss and raise urine pH Weak 1

If ↑U oxalate (>0.5-1 mmol/day) due to hyperabsorption of oxalate or extreme dietary intake, give Ca++ 1-2 g/day (beware excess Ca excretion) [Strong]¹ plus Mg++ 200-400 mg/day (low evidence). Consider alkaline citrates to replace citrate loss and raise urine pH [Weak]¹