Conversation: The conversation between human and AI assistant.
[|Human|] I have a calcium level of 52 in my urine test results and had pancreatic cancer with whipple surgery 5 years ago, why is my levels so low, I had a kidney stone in april and possible ones in my kidney now. I was prescribed calcium supplement but most thing do not digest and absorbe in my system due to the surgery
[|AI|]  Calcium is one of the most difficult mineral to get absorb from digestive system. And for this you need to have enough of vitamin D also in your body. Vitamin D helps for absorption as well as for metabolism of calcium in body. I suggest taking a calcium from natural organic supplement source so that bio availability will be good comparing to allopathic calcium tablets. Also have a good vitamin D with either direct exposure to sunlight early morning or as a supplement again. I also suggest having enough of milk, egg, banana in your diet to have good calcium availability from your food. One most important thing is do not take much of allopathic calcium because you already have kidney stone issue also. In today's fast life we do not concentrate much on what we eat as well food quality is also not so well. Along with this we are not regularly expose to morning sunlight. All this together will result in low calcium in body. I am sure this all information will be useful for you if you follow properly. Take care.