Kombucha sales hit €3.5 billion globally in 2025. It's marketed as probiotic, detoxifying, and immune-boosting. But when you look at the clinical evidence — meaning randomized controlled trials in humans — the comparison with ginger shots is stark.
Evidence Comparison
| Health Claim | Ginger Shot Evidence | Kombucha Evidence |
|---|---|---|
| Anti-inflammatory | 50+ RCTs, NF-κB mechanism | 0 human RCTs |
| Gut health | +25% gastric emptying (RCT) | Theoretical (probiotics), no RCTs |
| Weight loss | 14 RCTs, meta-analysis | 0 RCTs |
| Immune boost | Multiple mechanisms documented | 0 RCTs |
| Nausea relief | 6 RCTs (strong) | 0 RCTs |
| "Detox" | Glutathione +32% (hepatoprotective) | No scientific definition |
The Kombucha Problem
Kombucha is fermented sweet tea. The fermentation produces some organic acids and traces of bacteria. But:
- No standardized probiotic content — strain types and counts vary wildly between batches
- Sugar content: 4-12g per 100ml — the fermentation doesn't consume all the sugar
- Zero completed human RCTs — all health claims extrapolate from in-vitro or animal studies
- Alcohol content: 0.5-3% — not always labelled accurately
Ginger's Documented Advantages
Ginger has specific, measured pharmacological actions: NF-κB inhibition (Grzanna et al., 2005), 5-HT3 antagonism for nausea (Ernst & Pittler, 2000), prokinetic gastric emptying +25% (Hu et al., 2011), thermogenesis +43 kcal/day (Mansour et al., 2012). These aren't theoretical — they're measured in randomized controlled trials with hundreds of participants.
The Sugar Factor
| Product | Sugar/100ml | Clinical RCTs | Probiotic Standardized |
|---|---|---|---|
| INTI | 1.19g | 50+ (ginger + curcumin) | N/A (different mechanism) |
| Kombucha (average) | 4-12g | 0 | No |
| Gimber | 34g | 0 (product-specific) | N/A |
FAQ
Is a ginger shot better than kombucha?
For clinically documented health effects: yes. Ginger has 50+ RCTs across multiple health outcomes. Kombucha has zero completed human clinical trials for any health claim.
Is kombucha actually healthy?
Kombucha may contain beneficial organic acids and bacteria, but there are no human RCTs proving health benefits. The sugar content (4-12g/100ml) and variable probiotic content make it unpredictable as a health intervention.
By Loïc De Vrye — founder of INTI, Me Time Scomm.
INTI — organic ginger + turmeric + black pepper, 1.19g sugar per 100ml.