Observationele Case: Hoe Marleen haar leverwaarden normaliseerde met Livera Shield | Livera

After 2.5 years of elevated liver values due to social drinking:
how Marleen lowered her ALAT from 84 to 31

A glass of wine with dinner, a drink on Friday — for Marleen Brinkjes, that was normal. Until her GP discovered elevated liver values during a routine check. This report follows her blood values over 30 months: what went wrong, why, and how it got better.

ALAT · Alanine Aminotransferase (U/L)
Red = elevated · Green = normal · Gold dotted = start Livera Shield (Sep 2023)
Marleen Brinkjes
Marleen Brinkjes
44 years old · Nijmegen · Shared with permission
Mar 2022 – Dec 2024 6 blood tests Observational follow-up NAC + silymarin + BoccShield®
−63% ALAT reduction
−58% GGT reduction
14 months Supplementation
NAC+ Protocol

What changed — at a glance

Marleen drank an average of 6–8 glasses of wine per week. Not excessive by her own standards, but enough to slowly raise her liver values. Her GP pointed this out during a routine check in March 2022. She cut back a bit, but the values remained elevated.

After 18 months without clear improvement, she decided to take a different approach. In September 2023, she started Livera Shield — a daily capsule with NAC, milk thistle extract, and BoccShield®. Fifteen months later, all three of her liver values were back within normal ranges.

Value Mar 2022 (before) Dec 2024 (after) Change
ALAT (U/L) 84 31 −63%
ASAT (U/L) 61 28 −54%
GGT (U/L) 79 33 −58%
"I always thought a few glasses of wine per week couldn’t really harm me. My GP also said it was 'not that bad.' But my blood values told a different story — and that continued, year after year, until I changed something." — Marleen Brinkjes, 44 years old, Nijmegen

Why alcohol raises your liver values

When you drink alcohol, your liver breaks down ethanol through a two-step process. First, ethanol is converted into acetaldehyde — a toxic intermediate that directly damages liver cells. Then, acetaldehyde is converted into acetic acid, a relatively harmless substance.

The problem: with regular alcohol use, the liver’s glutathione (GSH) reserves become depleted. Glutathione is the liver’s main antioxidant and essential for neutralizing acetaldehyde. Without enough GSH, acetaldehyde accumulates and causes oxidative stress — leading to elevated ALAT, ASAT, and GGT.

What do ALAT, ASAT, and GGT mean?

ALAT and ASAT are enzymes normally inside your liver cells. When liver cells are damaged by oxidative stress, they leak into the blood — the higher the value, the more damage. GGT is a specific marker for alcohol-related liver damage and rises even with regular use, even if you otherwise feel fine.

Think of it as a smoke detector in your liver. If it goes off, something is wrong — even if you don’t feel a fire yet.

Enzyme Normal value Clinical significance when elevated
ALAT (U/L) < 45 Hepatocellular damage; specific to liver
ASAT (U/L) < 40 Liver and muscle damage; less specific
GGT (U/L) < 55 Alcohol-related liver damage; bile duct problems
Glutathione (GSH) > 60 µmol/L Liver antioxidant capacity; decreases with alcohol use

5 blood tests over 30 months

The table below shows the full measurement series of Marleen Brinkjes. Values above the normal limit are marked in red; values within normal are green. Supplementation with Livera Shield started in September 2023.

Elevated Normal Start supplementation
Date ALAT (<45) ASAT (<40) GGT (<55) Note
Jan 2022 84 61 79 Baseline — 6–8 glasses/week
Jul 2022 91 67 88 Slight increase; GP advises reduction
Jan 2023 87 63 82 Complaints: fatigue, bloating
Sep 2023 85 62 80 Start Livera Shield (NAC 400mg, Silymarin 120mg, BoccShield® 70mg)
Dec 2023 52 41 57 Clear improvement; less fatigue
Jun 2024 31 28 33 All values within normal range
ALAT · Alanine Aminotransferase (U/L)
Red shaded area = elevated range. Gold dotted line = start Livera Shield, Sep 2023.
GGT · Gamma-Glutamyltransferase (U/L)
Same timeline. Normal GGT value < 55 U/L.
Elevated Normal Start Livera Shield
Normal ALAT value: < 45 U/L. Marleen's values were above the normal limit for 30 months. After 15 months of supplementation with Livera Shield, her ALAT dropped from 84 to 31 — a reduction of 63%.

What Marleen used — and why it works

Marleen started in September 2023 with Livera Shield — 2 capsules per day, in the evening before bedtime. She did not significantly change her drinking habits during the test period.

The protocol combines four clinically studied ingredients, each targeting a different link in the liver stress chain:

Livera Shield — Daily Protocol
400 mg
NAC (N-Acetyl-Cysteine)
Direct precursor of glutathione (GSH). NAC increases intracellular GSH concentration and neutralizes acetaldehyde before it damages liver cells. Clinically proven in alcohol-related liver diseases.[1,2]
120 mg
Milk Thistle Extract (Silymarin)
Silymarin stabilizes liver cell membranes and inhibits the production of pro-inflammatory cytokines. Meta-analysis (2020, n=1,198) shows significant reduction of ALT and AST in liver diseases.[3]
70 mg
BoccShield® (Standardized Broccoli Extract)
Patented sulforaphane extract that stimulates Nrf2 activation — the master regulatory mechanism for antioxidant response in liver cells. Increases endogenous GSH production by up to 30%.[4]
10 mg
Black Pepper Extract (Piperine)
Increases the bioavailability of silymarin by up to 154% by inhibiting intestinal P-glycoprotein and CYP3A4 metabolism.[5]

Livera Shield — clinically supported liver support

Livera Shield is the only Dutch liver supplement that combines all four clinically studied ingredients in therapeutic dosages. No fillers, no unnecessary additives.

🛡
Livera Shield
NAC 400mg · Milk Thistle Extract 120mg · BoccShield® 70mg · Black Pepper 10mg
90 capsules — 45 days supply
€0.53/day €39,99
Ingredient Average supplement Livera Shield
NAC 150–200 mg 400 mg
Silymarin 50–80 mg 120 mg
BoccShield® / Sulforaphane ✗ not present ✓ 70 mg
Piperine (absorption) ✗ not present ✓ 10 mg
Clinically supported dosage
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What this case does and does not demonstrate

This is an observational follow-up of one person, not a randomized controlled trial. The improvement in liver values is documented and consistent with the expected pharmacological action of the ingredients used, but causality cannot be established.

Marleen slightly reduced her alcohol consumption during the study period (from 6–8 to 4–6 glasses per week), which is a confounding factor. Other lifestyle changes were not systematically recorded.

The results of the referenced clinical studies (see references) come from larger populations and provide a stronger basis for the efficacy of the individual ingredients.

References
  1. Mokhtari V, et al. (2017). A review on various uses of N-acetyl cysteine. Cell Journal, 19(1), 11–17.
  2. Haber PS, et al. (2003). Pathogenesis and management of alcoholic hepatitis. Journal of Gastroenterology and Hepatology, 18(12), 1332–1344.
  3. Zhong S, et al. (2017). Silymarin in non-alcoholic fatty liver disease: a systematic review and meta-analysis of randomized controlled trials. Evidence-Based Complementary and Alternative Medicine.
  4. Houghton CA, et al. (2016). Sulforaphane and other nutrigenomic Nrf2 activators: can the clinician's expectation be matched by the reality? Oxidative Medicine and Cellular Longevity.
  5. Bhardwaj RK, et al. (2002). Piperine, a major constituent of black pepper, inhibits human P-glycoprotein and CYP3A4. Journal of Pharmacology and Experimental Therapeutics, 302(2), 645–650.
Disclaimer: This report is an observational case study and not clinical evidence of effectiveness. The presented results come from one person and cannot be generalized. Livera Shield is a dietary supplement, not a medicine. Always consult a doctor for health issues or elevated liver values. The information on this page is not intended as medical advice and does not replace professional medical judgment. Results may vary.
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