PubMed-compiled information sheet
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Compiled from 27 PubMed articles · model: gemma4:31b
Summary
Spanish Sage (Salvia lavandulaefolia) is an aromatic plant used traditionally to enhance memory and cognitive function [PMID:24836739, PMID:12895685].
Background
Salvia lavandulaefolia, also known as Spanish sage, is a species native to the Western Mediterranean [PMID:41829794]. It is a related species to Salvia officinalis with similar components, though it typically contains lower levels of thujone [PMID:30000875].
Traditional uses
It has a longstanding reputation in European herbal encyclopaedias and folk medicine as an agent to enhance memory and treat dementia problems [PMID:12895685, PMID:25474583, PMID:24836739]. In the Valencia Region of Spain, 29 medicinal uses have been reported for this species [PMID:28790914].
Active compounds
The essential oil consists almost exclusively of monoterpenoids [PMID:20937617]. Major constituents include 1,8-cineole (up to 75.2%), camphor, alpha-pinene, beta-pinene, and bornyl acetate [PMID:10933142, PMID:25491340]. Other components include tannins, flavones, phenolic acids, phenylpropanoid glycosides, triterpenoids, and diterpenes [PMID:30000875].
Mechanism of action
S. lavandulaefolia and its monoterpenoid constituents (specifically 1,8-cineole and alpha-pinene) inhibit acetylcholinesterase (AChE) in vitro and in vivo [PMID:11697542, PMID:11926204, PMID:10933142]. It also demonstrates antioxidant, anti-inflammatory, and estrogenic effects [PMID:11697542, PMID:12895683, PMID:17168769].
Clinical evidence
Evidence BCognitive performance and memory (healthy adults)
Acute administration of standardized essential oil improved memory and cognitive performance [PMID:12895685, PMID:20937617, PMID:15639154].
Evidence BMood (healthy adults)
Acute doses of essential oil led to positive modulation of mood [PMID:20937617, PMID:15639154].
Evidence BAlzheimer's Disease/Dementia
A pilot open-label study in patients with AD showed a significant increase in diastolic and systolic blood pressure in two patients, though this may have been due to preexisting hypertension [PMID:12895683].
Safety & adverse effects
In general, sage is well tolerated, though occasional nausea, vomiting, abdominal pain, and dizziness have been reported [PMID:30000875]. The essential oil is considered an irritant for the user [PMID:39463783].
Pregnancy & lactation
No scientific studies were located to evaluate the effect of sage on milk supply, and no data exist on the safety of sage in nursing mothers or infants [PMID:30000875].
Evidence summary
There is moderate evidence (Level B) from randomized controlled trials suggesting acute cognitive and mood enhancement in healthy adults. Preclinical evidence (Level D) supports its anticholinesterase and antioxidant properties. Evidence for clinical use in dementia is limited to pilot data.
PubMed sources
- 1.PMID: 30000875 (2006) — Chronic Supplementation with a Mix of Salvia officinalis and Salvia lavandulaefolia Improves Morris Water Maze Learning in Normal Adult C57Bl/6J Mice. · Nutrients
- 2.PMID: 12895685 (2003) — Salvia lavandulaefolia (Spanish sage) enhances memory in healthy young volunteers. · Pharmacology, biochemistry, and behavior
- 3.PMID: 24836739 (2014) — Systematic review of clinical trials assessing pharmacological properties of Salvia species on memory, cognitive impairment and Alzheimer's disease. · CNS neuroscience & therapeutics
- 4.PMID: 28143625 (2017) — Potential benefits of phytochemicals against Alzheimer's disease. · The Proceedings of the Nutrition Society
- 5.PMID: 20937617 (2011) — Monoterpenoid extract of sage (Salvia lavandulaefolia) with cholinesterase inhibiting properties improves cognitive performance and mood in healthy adults.