Detox & Blood Testing
Forget the Juice Cleanse.
Real Detox Starts With
Knowing Your Numbers.
Your liver and kidneys process toxins every single day without you noticing. But when they're struggling, the signs are subtle — and a blood test is the only reliable way to know how they're actually performing. Here's what to test, what it means, and how to genuinely support your body's detox systems.
The Truth About Detox
Your Body Is Already Detoxing. The Question Is How Well.
Let's get one thing straight before we go any further: your body doesn't need a juice cleanse, a 21-day programme, or an expensive supplement stack to detox. It has a sophisticated, built-in detoxification system that runs 24 hours a day, 7 days a week — centred on two remarkable organs: your liver and your kidneys.
What the wellness industry calls "detoxing" is largely marketing. No tea, juice, or pill can speed up a healthy liver or replace a functioning kidney. But here's what's genuinely important — and what rarely gets talked about: those organs can be stressed, strained, and quietly underperforming without you feeling dramatically unwell. And when they are, the knock-on effects show up everywhere: fatigue, brain fog, skin problems, bloating, poor sleep, and a general sense of not quite being right.
The most powerful thing you can do isn't a detox protocol. It's knowing how your liver and kidneys are actually performing — and then making targeted changes based on what the data shows. That starts with a blood test.
Real detox support isn't about what you drink for 10 days. It's about understanding how your organs are performing year-round — and giving them what they actually need.
Your Body's Detox Team
What Your Liver and Kidneys Actually Do
Understanding what these organs do — and how much they're doing for you every day without complaint — is the first step to understanding why monitoring them matters.
The Primary Detox Organ
The Liver
- Filters and detoxifies everything absorbed from the digestive tract
- Metabolises alcohol, medications, hormones, and environmental toxins
- Produces bile to break down dietary fat
- Synthesises proteins including albumin and clotting factors
- Regulates blood sugar through glucose storage and release
- Processes and recycles hormones including oestrogen and cortisol
- Converts ammonia (a waste product) into urea for kidney excretion
- Stores vitamins A, D, E, K, and B12
The Filtration System
The Kidneys
- Filter approximately 200 litres of blood every single day
- Remove waste products including urea, creatinine, and uric acid
- Regulate fluid balance and blood pressure
- Maintain electrolyte balance — sodium, potassium, phosphate
- Produce erythropoietin — the hormone that stimulates red blood cell production
- Activate vitamin D for use by the body
- Regulate blood pH (acid-base balance)
- Remove excess drugs, hormones, and metabolic byproducts
Together, these two organs form the most sophisticated detoxification system imaginable. The problem is that they rarely cause pain or dramatic symptoms until something has gone significantly wrong. This is why blood testing — which can detect stress and early dysfunction long before you feel it — is so valuable.
Signs Your Organs May Be Struggling
Subtle Signals Most People Dismiss
Neither the liver nor the kidneys have obvious pain signals in early dysfunction. But the body finds other ways to communicate. Here are the signs worth paying attention to:
Liver stress signals
Kidney stress signals
The problem with waiting for symptoms
The liver has no pain receptors. The kidneys rarely cause obvious symptoms in early dysfunction. By the time you feel significantly unwell, three-quarters of liver disease and over 90% of kidney function can already be compromised. Routine blood testing catches problems at a stage when lifestyle changes can still make a real and meaningful difference.
The Blood Tests That Matter
What to Check — and What Each Marker Actually Tells You
Liver markers:
Optimal: below 35 U/L (women), below 40 U/L (men). Even modest elevation above 25 U/L is worth investigating when accompanied by symptoms.
After 72–96 hours of alcohol abstinence, GGT levels begin to fall — making the difference between "normal lifestyle" and "alcohol-related" stress visible.
Kidney markers:
This is the cornerstone kidney marker — and rarely checked routinely unless you have diabetes or high blood pressure.
Key liver & kidney markers — normal ranges at a glance
| Marker | Normal range | Borderline | Elevated — act |
|---|---|---|---|
| ALT | <35 U/L (women) / <40 U/L (men) | 40–80 U/L | >80 U/L |
| GGT | <35 U/L (women) / <50 U/L (men) | 50–100 U/L | >100 U/L |
| AST | <40 U/L | 40–80 U/L | >80 U/L |
| Bilirubin | <17 µmol/L | 17–35 µmol/L | >35 µmol/L |
| Albumin | 35–50 g/L | 30–35 g/L | <30 g/L |
| Creatinine | 60–110 µmol/L (women) / 70–120 (men) | 110–130 µmol/L | >130 µmol/L |
| eGFR | >90 mL/min/1.73m² | 60–90 | <60 (3+ months) |
| Uric Acid | <360 µmol/L (women) / <420 (men) | 360–480 µmol/L | >480 µmol/L |
What Actually Stresses These Organs
The Real Causes — and How Much Each One Matters
What stresses the liver — impact on blood markers
What stresses the kidneys — impact on blood markers
What Actually Supports These Organs
Evidence-Based Ways to Help Your Liver & Kidneys Thrive
Once you know what your blood markers look like, you can make targeted, intelligent decisions. Here's what the evidence actually supports for liver and kidney health — none of it involves a juice cleanse.
Test first — know what you're working with
A liver and kidney function panel takes minutes to do at home with a finger-prick kit. Without knowing your ALT, GGT, creatinine, and eGFR baseline, any "detox" you do is completely unmeasured. Testing before and after a period of dietary changes shows you what's actually working — and what isn't.
Reduce alcohol — the single biggest lever for liver health
GGT and ALT respond relatively quickly to alcohol reduction — often within 4–8 weeks. Even reducing from 14 units a week to 7 can produce meaningful improvements in liver markers. Going alcohol-free for a month is one of the most effective liver "resets" available — and it's completely free. Testing before and after makes the impact visible and motivating.
Cut sugar and processed food for the liver
Fructose — found in added sugar, fruit juice, and ultra-processed food — is metabolised almost entirely by the liver and is the primary dietary driver of non-alcoholic fatty liver disease. Reducing sugar intake directly reduces liver fat and brings ALT down. This is the most evidence-backed dietary intervention for liver health.
Hydrate properly — especially for the kidneys
The kidneys need adequate fluid to filter effectively. Chronic mild dehydration is one of the most common and easily fixable contributors to poor kidney function. Aim for 2–2.5 litres of water daily. If you're adding Oshun electrolytes to your water, you're also supporting cellular hydration — which means your water is doing more than just passing through.
Exercise — it directly benefits both organs
Physical activity reduces liver fat independently of weight loss, improves insulin sensitivity (protecting both organs), and supports healthy blood pressure (the kidney's primary enemy when elevated chronically). Even 150 minutes of moderate exercise per week produces measurable improvements in liver markers within 8–12 weeks.
Use supplements strategically — not randomly
Milk thistle (silymarin) has evidence for supporting liver cell regeneration and reducing inflammation in liver disease. NAC (N-acetyl cysteine) supports glutathione production — the liver's master antioxidant. Curcumin reduces liver inflammation. Cranberry and dandelion root have traditional use for kidney support. But these work best as a complement to lifestyle changes — not a replacement. And knowing your blood markers tells you whether they're needed at all.
The most important mindset shift
Stop thinking of detox as something you do for 10 days twice a year. Start thinking of it as a daily practice of supporting organs that are working hard every moment of every day. Blood testing turns that support from vague and hopeful into specific and measurable. When your ALT drops after six weeks of reduced alcohol and better diet, that's real, visible progress. That's what motivation looks like.
The liver can regenerate. The kidneys can recover. But only if you catch problems early enough — and only if you know what you're dealing with.
Find Out How Your Liver & Kidneys Are Really Doing
A liver and kidney function blood test is one of the most valuable health checks you can do — and with private at-home testing, it's never been easier. At Boost & Glow, we can help you get started.
Explore Boost & Glow → Support Hydration With Oshun →This blog is for informational purposes only and does not constitute medical advice. If you have concerns about your liver or kidney health, please consult your GP. Do not stop or change any medications without medical guidance. Always seek personalised advice from a qualified clinician regarding blood test results.
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