Medical Weight Care

Kidney Stones and Medical Weight Care

Creator: Weight Reset Guide Editorial Team
Published: 2026-09-23

A source-backed, plain-English guide to kidney stones in medical weight care: what the stones are made of, why being overweight and not drinking enough liquids show up on the risk list, the warning signs NIDDK says to act on, how stones are diagnosed and treated, and the diet and clinician questions to bring to a visit.

By Weight Reset Guide Editorial Team | Published 2026-09-23 | Editorially reviewed for clarity and source alignment

Answer snapshot

Topic	Medical Weight Care
Plain-English answer	Kidney stones are hard, pebble-like pieces of material that form in the kidneys when high levels of certain minerals are in your urine. NIDDK lists not drinking enough liquids and being overweight among the factors that raise risk, and says drinking enough water is the most important step to prevent them. Treatment depends on the stone's size, location, and type.
Best next step	Use this information to prepare questions for a licensed clinician or to compare a program's process, costs, safety policy, and follow-up.
Important boundary	This page cannot decide personal eligibility, medication choice, dosing, pharmacy source, insurance coverage, or medical safety.
Source types used	NIDDK, NIDDK, NIDDK, NIDDK, NIDDK, MedlinePlus

A four-step path: learn, prepare, clinician visit, follow-up — Use online education to prepare for a better clinical conversation, not to replace one.

Key takeaways

NIDDK defines a kidney stone as a hard, pebble-like piece of material that forms in one or both of your kidneys when high levels of certain minerals are in your urine, and states that kidney stones rarely cause permanent damage if treated by a health care professional.
NIDDK reports that about 11 percent of men and 6 percent of women in the United States have kidney stones at least once during their lifetime, that men are more likely to develop them than women, and that a family history of stones, a previous stone, and not drinking enough liquids all raise the likelihood.
NIDDK lists obesity among the conditions that make kidney stones more likely, states that studies have shown being overweight increases your risk of kidney stones, and notes that studies have shown the DASH eating plan can reduce the risk of kidney stones.
NIDDK states that drinking enough liquid, mainly water, is the most important thing you can do to prevent kidney stones, and that unless you have kidney failure, many health care professionals recommend six to eight, 8-ounce glasses a day; it also notes that calcium from food does not increase your chance of having calcium oxalate stones.
NIDDK says to see a health care professional right away for symptoms such as sharp pains in your back, side, lower abdomen, or groin, blood in your urine, or an inability to urinate, and that untreated stones can cause blood in the urine, severe pain, urinary tract infections including kidney infections, and loss of kidney function.
NIDDK states that health care professionals usually treat kidney stones based on their size, location, and type, that small stones may pass on their own, and that larger stones or stones that block the urinary tract may need procedures such as shock wave lithotripsy, cystoscopy and ureteroscopy, or percutaneous nephrolithotomy.

Why kidney stones come up in medical weight care

Kidney stones are a urinary tract condition rather than a weight condition, but the two subjects meet in a few practical places. NIDDK lists obesity among the conditions that make kidney stones more likely, and its nutrition page states that studies have shown being overweight increases your risk of kidney stones and that a dietitian can help you plan meals to help you lose weight. That same page notes that studies have shown the Dietary Approaches to Stop Hypertension (DASH) diet can reduce the risk of kidney stones.

Fluids matter just as much. NIDDK lists not drinking enough liquids among the factors that make kidney stones more likely, and it describes drinking enough liquid, mainly water, as the most important thing you can do to prevent them. Anyone changing how much they eat or drink as part of a weight-care plan should treat fluid intake as a question for a clinician rather than a guess, especially if a health care professional has told them to limit fluids because of kidney failure, urinary incontinence, or urinary frequency.

This page does not claim that any specific prescription weight-care medicine causes kidney stones, and it does not suggest that weight loss on its own prevents them. It summarizes what NIDDK and MedlinePlus say in plain English so you can ask better questions. Whether a plan fits your kidneys, your fluid needs, and your other conditions is a decision for a licensed clinician.

What kidney stones are, and who is more likely to get them

NIDDK explains that kidney stones are hard, pebble-like pieces of material that form in one or both of your kidneys when high levels of certain minerals are in your urine, and that they rarely cause permanent damage if treated by a health care professional. Stones vary in size and shape: they may be as small as a grain of sand or as large as a pea, and rarely as big as a golf ball. They may be smooth or jagged and are usually yellow or brown.

A small stone may pass through your urinary tract on its own, causing little or no pain. A larger stone may get stuck along the way. NIDDK notes that a stone that gets stuck can block your flow of urine, causing severe pain or bleeding, which is why symptoms are treated as a reason to seek care rather than something to wait out.

NIDDK describes four main types of kidney stones. Calcium stones, including calcium oxalate and calcium phosphate stones, are the most common; NIDDK notes explicitly that calcium from food does not increase your chance of having calcium oxalate stones. Uric acid stones may form when your urine contains too much acid, and NIDDK notes that eating a lot of fish, shellfish, and meat, especially organ meat, may increase uric acid in urine. Struvite stones may form after a urinary tract infection and can develop suddenly and become large quickly. Cystine stones result from cystinuria, a disorder passed down through families.

On how common stones are, NIDDK reports that about 11 percent of men and 6 percent of women in the United States have kidney stones at least once during their lifetime, and that kidney stones are common and on the rise. Men are more likely to develop them than women, a family history raises the likelihood, and people who have had a stone are more likely to develop another. Not drinking enough liquids is on the list as well.

NIDDK also lists conditions that raise the likelihood of stones, including a blockage of the urinary tract, chronic inflammation of the bowel, cystic kidney diseases, cystinuria, digestive problems or a history of gastrointestinal tract surgery, gout, hypercalciuria, hyperoxaluria, hyperparathyroidism, hyperuricosuria, obesity, repeated urinary tract infections, and renal tubular acidosis. Medicines can play a part too: NIDDK names long-term use of diuretics, calcium-based antacids, the HIV medicine indinavir, and the anti-seizure medicine topiramate. Medicine questions belong with the prescriber who knows your history.

Symptoms, and the complications treatment is meant to prevent

NIDDK lists the symptoms of kidney stones as sharp pains in your back, side, lower abdomen, or groin; pink, red, or brown blood in your urine, also called hematuria; a constant need to urinate; pain while urinating; an inability to urinate or only urinating a small amount; and cloudy or bad-smelling urine. It adds that your pain may last for a short or long time, or come and go in waves, and that nausea and vomiting can happen along with it. Fever and chills are listed as other symptoms.

The instruction NIDDK attaches to that list is direct: see a health care professional right away if you have any of these symptoms, because they may mean you have a kidney stone or a more serious condition. MedlinePlus lists the same kind of warning picture, including extreme pain in your back or side that will not go away, blood in your urine, fever and chills, vomiting, urine that smells bad or looks cloudy, and a burning feeling when you urinate.

NIDDK states that complications of kidney stones are rare if you seek treatment from a health care professional before problems occur, and that stones that are not treated can cause blood in the urine, severe pain, urinary tract infections including kidney infections, and loss of kidney function. That is the practical reason this topic belongs in a safety and follow-up conversation rather than a self-care plan.

How kidney stones are diagnosed and treated

NIDDK states that health care professionals use your medical history, a physical exam, and lab and imaging tests to diagnose kidney stones. The history covers conditions that make stones more likely, any family history of stones, and what you typically eat. Lab tests include urinalysis, which can show whether your urine has blood in it and minerals that can form stones, and blood tests that can show high levels of certain minerals. Imaging may include an abdominal x-ray, though NIDDK notes that not all stones are visible on an x-ray, or a computed tomography (CT) scan, which can show the size and location of a stone and whether it is blocking the urinary tract.

Treatment follows the stone. NIDDK says small stones may pass through your urinary tract without treatment, and that if you are able to pass a stone, a health care professional may ask you to catch it in a special container so a lab can find out what type it is. They may advise drinking plenty of liquids to help move a stone along, and may prescribe pain medicine. Larger stones, or stones that block your urinary tract or cause great pain, may need urgent treatment, and NIDDK notes that if you are vomiting and dehydrated, you may need to go to the hospital and get fluids through an IV.

Removal is done by a urologist. NIDDK describes shock wave lithotripsy, which uses shock waves to break the stone into small pieces that then pass through your urinary tract, given as an outpatient procedure with anesthesia; cystoscopy and ureteroscopy, where a scope is inserted through the urethra to find and remove or break up a stone, performed in a hospital with anesthesia and typically followed by going home the same day; and percutaneous nephrolithotomy, where a tool is inserted directly into your kidney through a small cut in your back, sometimes with a laser for larger stones, and may involve a hospital stay of several days. A thin flexible tube called a ureteral stent may be left in place afterward to help urine flow or help a stone pass.

Prevention starts with knowing what type of stone you had. NIDDK says a health care professional may ask you to collect your urine for 24 hours after the stone has passed or been removed, to measure how much urine you produce in a day along with your mineral levels, because you are more likely to form stones if you do not make enough urine each day or have a problem with high mineral levels. NIDDK describes medicines that may be prescribed depending on the type of stone, including potassium citrate for calcium and uric acid stones, allopurinol for uric acid stones, antibiotics and acetohydroxamic acid for struvite stones, and mercaptopropionyl glycine plus potassium citrate for cystine stones. NIDDK cautions that some kidney stone medicines have minor to serious side effects, and that side effects are more likely the longer you take the medicine and the higher the dose, so side effects should be reported. For stones caused by hyperparathyroidism, NIDDK notes that surgery to remove the abnormal parathyroid gland can prevent kidney stones.

Liquids, diet, and the questions to bring to a visit

Fluids come first. NIDDK states that drinking enough liquid, mainly water, is the most important thing you can do to prevent kidney stones, and that unless you have kidney failure, many health care professionals recommend six to eight, 8-ounce glasses a day. It adds that other liquids such as citrus drinks may also help, because citrus contains citrate, which stops crystals from turning into stones, and that how much liquid you need depends on the weather and your activity level. If you cannot drink the recommended amount because of another health problem, that is a conversation with a health care professional rather than a target to force.

Weight, diet, and stone type are linked. NIDDK states that studies have shown being overweight increases your risk of kidney stones and that a dietitian can help you plan meals to help you lose weight, and it notes that losing weight if you are overweight is especially important for people who have had uric acid stones. Because the changes that help depend on which type of stone you had, NIDDK advises asking which type you had and then changing how much sodium, animal protein, calcium, or oxalate is in the food you eat.

Two nutrition points surprise many people. First, sodium: NIDDK states that your chance of developing kidney stones increases when you eat more sodium, that adults should aim to consume less than 2,300 mg a day, and that one teaspoon of table salt has 2,325 milligrams of sodium. Its label tip is to check the Percent Daily Value for sodium, where 5 percent or less is low and 20 percent or more is high. Second, calcium: NIDDK states plainly that even though calcium sounds like it would be the cause of calcium stones, it is not, and that in the right amounts calcium can block other substances in the digestive tract that may cause stones. It suggests getting calcium from low-oxalate, plant-based foods such as calcium-fortified juices, cereals, breads, some kinds of vegetables, and some types of beans, and talking with a health care professional about how much calcium you should eat.

For calcium oxalate stones, NIDDK lists foods you may want to avoid to help reduce the amount of oxalate in your urine: nuts and nut products, peanuts, rhubarb, spinach, and wheat bran. For calcium oxalate, calcium phosphate, and uric acid stones, it says a health care professional may tell you to limit animal protein such as beef, chicken, and pork, especially organ meats, eggs, fish and shellfish, and milk, cheese, and other dairy products, while still making sure you get enough protein, and it suggests replacing some animal protein with plant-based foods such as beans, dried peas, lentils, soy foods, nuts, and sunflower seeds. Throughout, the instruction is the same: talk with a health care professional before making changes to your diet or medicines. Bring a short list to your next visit: whether your fluid target should change, which type of stone you had, what your urine and blood results mean, whether any of your current medicines raise your stone risk, and which symptoms should prompt a call.

What this page can and cannot do

This page can help you understand terms and prepare better questions. It cannot tell you whether a medication, program, dose, or pharmacy is appropriate for you. Talk with a licensed clinician for personal medical advice.

Practical checklist

Before you decide	What to verify
Clinical fit	Ask which health-history factors could make a medical weight-care option appropriate or inappropriate.
Cost	Separate visit fees, lab fees, medication cost, subscription fees, pharmacy charges, and cancellation terms.
Medication source	Ask what pharmacy is used and whether the product is FDA-approved or compounded.
Follow-up	Confirm how side effects, dose questions, refills, and urgent concerns are handled.

Common questions table

Question	Short answer
What is a kidney stone?	NIDDK defines a kidney stone as a hard, pebble-like piece of material that forms in one or both of your kidneys when high levels of certain minerals are in your urine. It says stones vary in size and shape, may be smooth or jagged, and rarely cause permanent damage if treated by a health care professional.
Does being overweight make kidney stones more likely?	NIDDK lists obesity among the conditions that make kidney stones more likely, and its nutrition page states that studies have shown being overweight increases your risk of kidney stones. That page also notes that studies have shown the DASH eating plan can reduce the risk of kidney stones, and that a dietitian can help you plan meals to help you lose weight.
Which symptoms mean I should seek care right away?	NIDDK says to see a health care professional right away if you have symptoms such as sharp pains in your back, side, lower abdomen, or groin, blood in your urine, a constant need to urinate, pain or difficulty urinating, or cloudy or bad-smelling urine, because these may mean a kidney stone or a more serious condition. MedlinePlus lists fever and chills and vomiting in that same warning picture.
How much liquid do I need to drink?	NIDDK states that drinking enough liquid, mainly water, is the most important thing you can do to prevent kidney stones, and that unless you have kidney failure, many health care professionals recommend six to eight, 8-ounce glasses a day. It says how much you need depends on the weather and your activity level, and that you should talk with a health care professional about how much liquid is right for you.
Does calcium in food cause kidney stones?	NIDDK states that calcium from food does not increase your chance of having calcium oxalate stones, and that in the right amounts calcium can block other substances in the digestive tract that may cause stones. It suggests asking a health care professional or dietitian how much calcium you should eat and which foods are the better sources for you.
How are kidney stones treated?	NIDDK says health care professionals usually treat kidney stones based on their size, location, and what type they are. Small stones may pass on their own, sometimes with advice to drink plenty of liquids and a prescription for pain medicine. Larger stones, or stones that block the urinary tract or cause great pain, may need shock wave lithotripsy, cystoscopy and ureteroscopy, or percutaneous nephrolithotomy, performed by a urologist.

Quick questions

What is a kidney stone?

NIDDK defines a kidney stone as a hard, pebble-like piece of material that forms in one or both of your kidneys when high levels of certain minerals are in your urine. It says stones vary in size and shape, may be smooth or jagged, and rarely cause permanent damage if treated by a health care professional.

Does being overweight make kidney stones more likely?

NIDDK lists obesity among the conditions that make kidney stones more likely, and its nutrition page states that studies have shown being overweight increases your risk of kidney stones. That page also notes that studies have shown the DASH eating plan can reduce the risk of kidney stones, and that a dietitian can help you plan meals to help you lose weight.

Which symptoms mean I should seek care right away?

NIDDK says to see a health care professional right away if you have symptoms such as sharp pains in your back, side, lower abdomen, or groin, blood in your urine, a constant need to urinate, pain or difficulty urinating, or cloudy or bad-smelling urine, because these may mean a kidney stone or a more serious condition. MedlinePlus lists fever and chills and vomiting in that same warning picture.

How much liquid do I need to drink?

NIDDK states that drinking enough liquid, mainly water, is the most important thing you can do to prevent kidney stones, and that unless you have kidney failure, many health care professionals recommend six to eight, 8-ounce glasses a day. It says how much you need depends on the weather and your activity level, and that you should talk with a health care professional about how much liquid is right for you.

Does calcium in food cause kidney stones?

NIDDK states that calcium from food does not increase your chance of having calcium oxalate stones, and that in the right amounts calcium can block other substances in the digestive tract that may cause stones. It suggests asking a health care professional or dietitian how much calcium you should eat and which foods are the better sources for you.

How are kidney stones treated?

NIDDK says health care professionals usually treat kidney stones based on their size, location, and what type they are. Small stones may pass on their own, sometimes with advice to drink plenty of liquids and a prescription for pain medicine. Larger stones, or stones that block the urinary tract or cause great pain, may need shock wave lithotripsy, cystoscopy and ureteroscopy, or percutaneous nephrolithotomy, performed by a urologist.

Key terms on this page

GLP-1, medical weight care, licensed clinician, side effects, cost transparency, medication source