Liver & Kidney Function
Liver & Kidney Function: Your Body’s Built-In Detox & Filtration Systems
Your liver and kidneys are two of the hardest-working organs in your body. They filter toxins, process nutrients, balance fluids, and support hormone and blood sugar regulation. When they’re struggling, you might notice fatigue, swelling, brain fog, or skin issues long before labs flag something as “abnormal.”
At The Nurse Rebecca, I help you make sense of liver and kidney labs—so you’re not left staring at numbers without answers. Here you’ll find:
✅ Clear explanations of common markers like ALT, AST, bilirubin, creatinine, and eGFR
✅ Guidance on lifestyle and nutrition habits that support liver and kidney health
✅ Insights into how these organs connect to energy, detox, and whole-body balance
✅ Simple, science-backed tools to protect these systems and prevent long-term damage
If you’ve ever worried about whether your liver or kidneys are functioning “well enough,” you’re not alone—and you deserve clarity. Your labs are a window into how your body is handling daily life, and small, intentional shifts can reduce the burden on these organs.
👉 If you’d like to dig deeper, you can order lab testing for liver and kidney function (like a CMP, liver enzymes, creatinine, and eGFR) through trusted partners like Everlywell, EmpowerDX, or Personalabs. And if you’re ready for personalized guidance, book a free 60-minute consultation with me—I’ll help you connect the dots between your labs, your symptoms, and the lifestyle shifts that keep your body supported.
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Your liver and kidneys act like your body’s built-in filtration and detox system.
The liver helps process nutrients, break down hormones, and remove toxins from your bloodstream.
The kidneys filter waste, balance electrolytes, regulate blood pressure, and keep hydration in check.
When these systems are stressed, you may notice fatigue, swelling, digestive issues, skin changes, or brain fog. Sometimes, subtle imbalances show up in labs long before symptoms become obvious.
Testing is the key to spotting issues early and supporting your body’s natural detox and balance.
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Specific Lab Test Guides
ALT (Alanine Aminotransferase)
Measures: An enzyme released when liver cells are stressed or damaged.
Why It Matters: Elevated ALT can indicate liver stress from medications, alcohol, or inflammation.
AST (Aspartate Aminotransferase)
Measures: Another enzyme linked to liver and sometimes muscle health.
Why It Matters: Used alongside ALT to evaluate liver inflammation or injury.
Bilirubin
Measures: A byproduct of red blood cell breakdown, processed by the liver.
Why It Matters: High bilirubin may point to liver dysfunction, bile duct issues, or increased breakdown of red blood cells.
Creatinine
Measures: A waste product filtered by the kidneys.
Why It Matters: High levels can signal reduced kidney function.
eGFR (Estimated Glomerular Filtration Rate)
Measures: How well your kidneys are filtering blood.
Why It Matters: One of the most important markers of kidney function; lower values may indicate early kidney disease.
BUN (Blood Urea Nitrogen)
Measures: How well your kidneys are clearing protein waste.
Why It Matters: Elevated or low values can point to kidney stress, dehydration, or diet-related issues.
Affiliate Disclosure: Some of the links on this page are affiliate links, which means I may earn a small commission if you choose to purchase through them, at no additional cost to you. I only recommend products and services I trust and use myself. Your support helps me continue providing free, helpful health resources. Thank you!
Trusted At-Home Lab Tests
If your provider won’t order a test, or you just want to track your health from home, these companies make it easy and reliable. I only recommend ones that meet high accuracy standards and keep your information secure.
Affiliate Disclosure: Some of the links on this page are affiliate links, which means I may earn a small commission if you choose to purchase through them, at no additional cost to you. I only recommend products and services I trust and use myself. Your support helps me continue providing free, helpful health resources. Thank you!
Health Labs
HealthLabs.com is a nationwide lab testing service that lets you order your own blood and urine tests without a doctor’s referral. Partnered with CLIA-certified labs like Quest and LabCorp, they offer fast, affordable results in 1–3 days on everything from hormones to glucose, thyroid, and more.
Everlywell
Everlywell makes it simple to take charge of your health with accurate, physician-reviewed at-home lab tests. From hormones and thyroid to blood sugar, food sensitivities, and more, their easy-to-use kits deliver clear results straight to your inbox in just days.
Personalabs
Personalabs lets you order lab tests online and visit a local lab for collection — no doctor’s referral required. It’s an affordable, convenient way to access a wide range of lab tests and get your results securely online.
How to Use Your Results
Labs are powerful—but they’re only part of the story. Once you have your results:
✅ Compare your numbers to optimal ranges, not just “normal.”
✅ Track how your symptoms (like fatigue, swelling, or brain fog) connect with lab changes.
✅ Bring results to your healthcare provider to discuss lifestyle, nutrition, hydration, or medication adjustments.
✅ Look at the bigger picture—liver and kidney health connect with hormones, blood sugar, inflammation, and micronutrients.
👉 Want help connecting the dots? Book a free 60-minute consultation with me. Together, we’ll review your labs, your symptoms, and create a plan to support your body’s natural detox and balance.
Want Help Understanding Your Lab Results?
Your numbers are just part of the story — the real magic is knowing what they mean for you.
In your free 60-minute consultation, we’ll:
Review your results together in plain, human language
Talk about what’s going well and what could use support
Outline next steps you can actually follow without overwhelm
You’ll leave with clarity, confidence, and a plan that works with your body — not against it.
This content is for educational purposes only. It is not intended to replace medical advice or diagnosis. Always consult your healthcare provider for questions about your personal health.