Introduction
Gotu kola (Centella asiatica) has long been used as an herbal brain tonic. This review looked at whether it actually improves thinking and mood.
What the study did
Researchers combined results from 11 randomized controlled trials in humans. Five tested gotu kola alone, and six tested products containing it. They measured effects on memory, attention, and mood.
What it found
- Gotu kola did not improve any area of thinking (memory, attention, etc.) compared to a placebo.
- It did improve alertness one hour after taking it.
- It also reduced anger scores one hour after treatment.
- No side effects were reported in any of the studies.
How much to trust it
This is a Strong tier review because it combines multiple human trials. However, the studies used different doses and preparations of gotu kola, making it hard to draw firm conclusions.
Your action plan
- If you try gotu kola, look for a standardized extract and follow the label directions.
- Be aware that current evidence does not support it for memory or thinking.
- Talk to a doctor before starting any new supplement, especially if you take other medications.
This summary is for general information only and is not medical advice. Talk to a qualified professional before changing anything about your health.
Source
Effects of Centella asiatica (L.) Urb. on cognitive function and mood related outcomes: A Systematic Review and Meta-analysis.. Scientific reports. 2017 PubMed
📚 Related Articles
- Gotu Kola: A Herb That May Boost Brain Health - A different review reaches a more hopeful conclusion about gotu kola and memory, making a useful counterpoint to this one.
- Creatine and Memory in Older Adults: A Review - Another popular supplement marketed for memory, with similarly mixed evidence worth comparing.
- Gut Bacteria and Dementia: What a New Review Found - Shifts from supplements to the gut-brain link, another angle on what actually influences cognition.
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