Hi, Thanks for writing in. I would like to tell you that in people with calcium oxalate stones, calcium restriction is NOT NECESSARY. To prevent further stones, I would recommend the following steps: a. Drink plenty of fluid. You should be consuming atleast 3-4 litres of water in a day. b. Limit the amount of protein you are consuming: You should be having a total 2 servings of milk and milk products + fish/poultry/meat/legumes to 140 g per day. [ Approximately, 1 deck of cards = 84 g] c. Limit Foods High in Oxalate like nuts, soya, carrots, beets, cauliflower, carrots. d. Limit your sodium and vitamin C intake. Avoid adding salt, pickles, papads, chutneys, I do not think that the pain in your leg is related to the deficiency of calcium. It needs an independent evaluation. You can continue taking Shelcal 500 as a calcium supplement would be recommended in post menopausal women. Hope this helps.