Diabetic Kidney Disease: Early Signs and How to Protect
Your kidneys filter waste from the blood through millions of tiny vessels. Over the years, high blood
sugar and high blood pressure can damage these vessels, leading to diabetic kidney disease. It affects
about one in three people with diabetes, and because it is silent in the early stages, many discover it
late. The encouraging message is that early detection and the right treatment can slow or even prevent
progression.
How Diabetes Damages the Kidneys
High sugar injures the filtering units, called glomeruli, causing them to leak protein, especially albumin,
into the urine. High blood pressure strains them further. Over time, the filtering ability, measured as
eGFR, declines. Smoking, high cholesterol, obesity, and a long duration of diabetes add to the risk.
Early Signs: Often None
Early kidney damage causes no symptoms. As it advances, signs may include swelling of the feet,
ankles, or face, foamy urine, tiredness, poor appetite, nausea, itching, and rising blood pressure. These
are late signs, which is why screening tests are essential.
The Two Key Tests
- Urine albumin-to-creatinine ratio (UACR): Detects small amounts of protein leaking into urine. A value
of 30 mg/g or higher on repeat testing suggests kidney damage. - eGFR from blood creatinine: Estimates how well the kidneys filter. An eGFR below 60 for three
months or more indicates reduced kidney function.
Both should be done at least once a year in everyone with diabetes, and more often if abnormal.
How to Protect Your Kidneys
- Keep HbA1c in your target range, as advised by your doctor.
- Control blood pressure, commonly aiming for below 130/80 mmHg.
- Take prescribed kidney-protective medicines, such as ACE inhibitors or ARBs when albumin is
present, and certain newer diabetes medicines when suitable. - Manage cholesterol, and stop smoking.
- Reduce salt, and maintain a healthy weight.
- Stay active and well hydrated, unless your doctor restricts fluids
Medicines to Be Careful With
Regular painkillers such as diclofenac and ibuprofen (NSAIDs) can harm the kidneys and should be
avoided unless your doctor approves. Be cautious about herbal and ayurvedic products, some of which
contain heavy metals or hidden drugs. Tell every doctor that you have diabetes and check kidney
function before any scan using contrast dye. Some diabetes medicines need dose changes or must be
stopped if kidney function falls, so regular tests are important.
Diet and Kidney Health
A balanced diet with vegetables, whole grains, and moderate protein is suitable for most people with
early kidney disease. Avoid very high protein diets and protein powders unless advised. In advanced
stages, doctors may advise limiting potassium, phosphorus, and fluids, but do not restrict these on your
own, because restrictions depend on your blood tests.
Sick-Day Safety
During vomiting, diarrhoea, or fever, dehydration can strain the kidneys. Ask your doctor whether to
pause certain medicines such as metformin, SGLT2 inhibitors, ACE inhibitors, ARBs, or diuretics, and
seek medical help early.
When to See a Kidney Specialist
Your doctor may refer you to a nephrologist if eGFR falls below 60 with rapid decline, if urine albumin is
very high or rising, if blood pressure is difficult to control, or if you have blood in the urine. Early referral
improves outcomes.
Care at Dr. Rajender’s Lifestyle Clinic
The clinic offers structured, evidence-based care for Type 2 diabetes and hypertension, with
personalised nutrition, physical activity, lifestyle correction, and continuous medical guidance aimed at
protecting your kidneys through good control and regular screening.
Book a Consultation
Visit https://www.drrajenderslifestyleclinic.com/ to learn more and book a consultation.
Frequently Asked Questions
How often should kidney tests be done in diabetes?
At least once a year, including urine albumin-to-creatinine ratio and eGFR, and more often if results are
abnormal.
Can diabetic kidney disease be reversed?
Early damage can sometimes stabilise or improve with good control and treatment, while advanced
damage is usually slowed rather than reversed.
Is foamy urine a sign of kidney damage?
It can be, since it may reflect protein in the urine, but it can also have other causes. A urine albumin test
confirms it.
Are painkillers safe for people with diabetes?
Regular NSAID painkillers can harm the kidneys. Ask your doctor for safer options.
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