When I look back and reflect on my work reviewing patient’s medicines work over the last 24 years, I can’t help but notice when I have two patients, both diagnosed with the same conditions—the key differentiating factor in their prognosis is their kidney function. Same age, same gender, same suburb. Yet, one’s health quietly spiralled down, marked disease progression, while the other flourished. As I sat across from them—consultant pharmacist, researcher and health coach—I realized kidney health is rarely about ageing alone. It’s about the small, daily choices we make and how we take care of our vital organs and kidneys are our unsung heroes.
The Hidden Role of the Kidneys: Your Body’s Unsung Heroes
Most people think of their kidneys only when something goes wrong—a blood test highlight, a medication warning, or a distant threat of dialysis. But the truth is, chronic kidney disease is a silent disease of slow-burn and quietly hijacks your body’s ability to repair, detoxify, and flames the fire of inflammation and progressing permanent disability over time, if not kept in check.
According to Kidney Australia[i], chronic kidney disease (CKD) is silent until as much as 90% of kidney function is lost before people experience symptoms.
Your kidneys filter about 200 liters of blood daily, controlling water balance, regulating blood pressure, neutralizing acids[ii], producing hormones for red blood cell formation, and even converting vitamin D to its active form, crucial for immunity and bone health. When kidney function quietly declines (as it can for years without obvious symptoms), everything from your sleep (urinary frequency) and mood (poor sleep) to your risk of infections (increased inflammation), heart disease (increased inflammation), and even “brain fog” (accumulation of toxic metabolites) is affected.
In my experience, kidney health is therefore a linchpin for how well we age, heal, and thrive.
The Protein Paradox: Fueling Strength & the Burden of Toll on the Kidneys
Proteins are the building blocks of strength, immunity, and muscle—essential at every stage of life, but especially as we age. Yet, there’s a paradox: a high-protein diet, commonly recommended for muscle preservation and longevity, can increase the acid load on your kidneys, especially if the ‘neutralizing’ forces—plants, hydration, alkaline minerals—aren’t in place.
Processed meats and red meats have been flagged for their potential kidney stress due to preservatives, altered proteins, and high acid content. The science, though, is nuanced—a modest increase in high-quality protein is beneficial for muscle and metabolic health, especially when balanced with plenty of fruits and vegetables (around 660g daily in a Spanish study reduced inflammatory biomarkers like homocysteine and CRP)[iii].
Here’s the key: balance. Pair every palm-sized portion of protein with 2 cups of rainbow vegetables, mix it up raw and lightly cooked to diversify micronutrients. In simplified terms, organic ions (citrate, malate and gluconate) and alkaline minerals (calcium, magnesium, potassium, sodium) in vegetables & fruits supply the body’s buffering system—that powers our endogenous bicarbonate and acid neutralising system, and reduce kidney burden. Without them, excess acidity can leach minerals from your bones, degrade muscle tissue, and increase the risk of kidney stones or accelerate kidney decline.
Medicines and the “Triple Whammy”: What You Need To Know
This was a recurring theme in my interview with The Kidney Coach—a practical warning hiding in plain sight for tens of thousands of Australians. The “triple whammy” refers to a risky medication combination: an ACE inhibitor or angiotensin receptor blocker (typically ending in “-pril” or “-sartan”), a diuretic (fluid pill), and a non-steroidal anti-inflammatory drug (NSAID, like ibuprofen).
Taken together, especially in the setting of dehydration, illness, or acute stress, they can dramatically reduce kidney blood flow and precipitate acute injury. Many people—especially those over 60 or living with diabetes, hypertension, or prior kidney issues—are at risk, often unknowingly. You can watch my interview here.
What should you ask your doctor?
- “Am I on any combination of these medicines?”
- “What symptoms should trigger a medication review (vomiting, diarrhea, new medications)?”
- “What’s my most recent kidney function result (eGFR, uACR/urinary albumin: creatinine ratio)?”
Remember: medicines are powerful allies when tailored to you, but vigilance is essential. Your pharmacist and GP want to partner with you—never hesitate to ask questions, especially during intercurrent illnesses, and always flag new medications or supplements.
Practical Kidney Protection Plan: Small Habits, Big Impact
Translating pharmacology and complex biochemistry into daily habits is my favorite form of advocacy. Here’s your bite-sized roadmap:
- Hydration is your shield: Keep urine pale and plentiful—dehydration is the most common trigger for acute kidney stress.
- Balance electrolytes: Foods rich in potassium and magnesium (leafy greens, avocado, banana, borth) support acid-base balance.
- Monitor your eGFR and urine albumin: These simple tests track kidney reserve. Know your numbers, just like tracking your blood pressure or cholesterol.
- Be “meds aware”: During illness, certain drugs—SADMAN: Sulfonylureas, ACE inhibitors, Diuretics, Metformin, ARBs, NSAIDs, SGLT2 inhibitors—should be paused (with GP guidance), to prevent acute kidney injury.Kidney-Crib-Oct-25.docx
- Adopt an alkaline-powered plate: Aim for 660g vegetables and fruits per day or individualise to your requirements through testing urine pH.[iv] Enjoy a variety of raw and lightly cooked vegetables for diversity.
- Gut health matters: A thriving gut microbiome reduces uremic toxins and inflammation, supporting kidney longevity.
This simple diagram visualizes the balance: dietary acid sources (protein, soft drinks) vs. the neutralizing “bicarbonate system” (fruits, vegetables, alkaline minerals). When intake exceeds what the kidneys can buffer, the muscle and connective tissue pay the price—with long-term risks for bone, muscle, and kidney function.
Empowerment & Call to Action: Your Journey Starts Now
If you have kidneys, you have skin in this game!
Whether you’re living with diabetes, hypertension, heart disease, or simply want to age well, your kidneys deserve proactive, loving attention. Ask questions. Know your numbers. Hydrate generously. Make your plate a palette of alkaline-rich colors. And if you’re ever unsure—reach for help early.
You don’t need to walk this journey alone.
Book a 20-minute Health Chat or subscribe to The Pharmacist Edit for trusted, timely tips rooted in both science and compassion. Let’s partner, not just as practitioners and patients, but as a community committed to thriving, not just surviving.
Let’s Connect: For You, For Your Family, For the Future
Ready to take the next step? There are no small questions when it comes to kidney health. Whether you’re a carer, a patient, or a fellow health professional keen on collaboration, reach out. This is not just about kidneys—it’s about reclaiming energy, possibility, and dignity in every decade of life.
References
[i] Chronic Kidney Disease (CKD) Management in Primary Care (5th edition). Kidney Health Australia, Melbourne, 2024 https://tinyurl.com/ys6ej4u3
[ii] Scialla, J. J., & Anderson, C. A. (2013). Dietary acid load: a novel nutritional target in chronic kidney disease?. Advances in chronic kidney disease, 20(2), 141–149.
[iii] Hermsdorff, H. H., Zulet, M. A., Puchau, B., & Martínez, J. A. (2010). Fruit and vegetable consumption and proinflammatory gene expression from peripheral blood mononuclear cells in young adults: a translational study. Nutrition & metabolism, 7, 42. https://doi.org/10.1186/1743-7075-7-42
[iv] Welch, A. A., Mulligan, A., Bingham, S. A., & Khaw, K. T. (2008). Urine pH is an indicator of dietary acid-base load, fruit and vegetables and meat intakes: results from the European Prospective Investigation into Cancer and Nutrition (EPIC)-Norfolk population study. The British journal of nutrition, 99(6), 1335–1343. https://doi.org/10.1017/S0007114507862350
