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Episode 132: Organ Series — Kidneys
Your kidneys are not just filters.
In episode 11 of our Organ Series, Dr. Jace and Dr. Addy break down the kidneys, hydration quality, electrolytes, blood pressure, blood sugar, NSAIDs, kidney disease, fluid retention, kidney testing, and how to protect kidney function before symptoms show up.
The kidneys filter roughly 50 gallons of blood per day, reabsorbing about 99% of that fluid and excreting only one to two liters as urine. But kidney dysfunction can be silent. Kidney function can decline significantly before standard markers like creatinine clearly rise.
This episode explains the kidneys as the body’s second water treatment plant. They filter waste, reabsorb water and nutrients, regulate sodium and potassium, help manage blood pH, influence blood pressure, support fluid balance, and play a role in blood cell production.
Dr. Jace and Dr. Addy also discuss why hydration is not just about drinking more water. The quality of hydration matters. Water, minerals, sodium, potassium, and magnesium all play a role in how well the body uses fluid.
They also cover why uncontrolled blood pressure and blood sugar are two of the biggest drivers of chronic kidney disease, why chronic NSAID use can stress the kidneys, and why tests like eGFR and urinalysis can help detect early warning signs.
In this episode, we cover:
The kidneys as the second water treatment plant
Why kidney disease can be silent
Kidney filtration and reabsorption
Hydration quality vs. hydration quantity
Electrolytes, sodium, potassium, and magnesium
The kidney-to-heart connection
Fluid retention and blood pressure
Why high blood pressure damages kidney tissue
Why diabetes and blood sugar damage kidney filters
NSAIDs, dehydration, and kidney injury risk
eGFR, creatinine, and urinalysis
Sugar in urine and metabolic warning signs
Potassium-rich foods for kidney and blood pressure support
Himalayan salt, Celtic salt, and mineral hydration
At-home blood pressure tracking
Food order, walking after meals, and strength training
Magnesium and citrate-rich foods for kidney stone support
Red flags: foamy urine, blood in urine, swelling, flank pain, low urine output, fatigue, nausea, and appetite changes
Key takeaway:
Kidney health is metabolic health.
The kidneys depend on healthy blood pressure, healthy blood sugar, intelligent hydration, electrolyte balance, and protection from chronic stressors like dehydration and overuse of NSAIDs.
Your kidneys filter the blood.
They regulate the chemistry.
They manage fluid balance.
And when they struggle, the heart, metabolism, and whole body can feel the effects.
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Disclaimer: This podcast is for informational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider.
