There are two important points to be considered for oxalate stone
(a) drink enough fluids. The number one thing you can do is to drink enough fluids, like water. Drinking enough fluids will thin out your urine and make it harder to form crystals and stones.
(b) eat less oxalate-rich foods. Limiting the oxalate-rich foods you eat each day may help lower your chance of forming new oxalate stones and help in reducing the size of existing stones. There are some foods you should avoid because of their high oxalate levels. Some foods very high in oxalate a
nuts
rhubarb
beets
chocolate soy milk
buckwheat flour
sesame seeds.