# Melissa phospholipids improves sleep quality and mental well-being: concluding results from clinical study in adults with emotional distress

**Authors:** Mariangela Rondanelli, Giuseppe Mazzola, Gaetan Claude Barrile, Paola Misiano, Simone Perna

PMC · DOI: 10.29219/fnr.v70.13729 · Food & Nutrition Research · 2026-01-31

## TL;DR

Melissa phospholipids at 400 mg/day significantly improved sleep quality and mental well-being in adults with emotional distress.

## Contribution

Demonstrates dose-dependent efficacy of Melissa phospholipids in improving sleep and emotional health in a clinical setting.

## Key findings

- 400 mg/day of MOP reduced PSQI scores by 30%, significantly more than 200 mg/day.
- 400 mg/day reduced depression, anxiety, and stress scores by 26%, 18%, and 22%, respectively.
- Quality of life improved by 33%, with significant gains in physical well-being.

## Abstract

Melissa officinalis L. (lemon balm) is a botanical support widely used for its calming and sleep-promoting properties.

To evaluate the impact of daily supplementation with Melissa phospholipids (MOP) at 200 or 400 mg for 3 weeks on sleep quality and psychological well-being in adults with emotional distress and poor sleep quality.

This prospective, open-label, dose-comparison clinical study enrolled 32 adults with poor sleep quality and/or clinically significant emotional distress. Participants received daily supplementation with either 200 or 400 mg/day MOP for 3 weeks. Sleep quality (primary endpoint) was assessed using the Pittsburgh Sleep Quality Index (PSQI) at baseline (T0), and week 3 (T1). Secondary endpoints included depression, anxiety, and stress, positive and negative affect, mental well-being, and quality of life. Safety was also assessed through adherence monitoring, documentation of side effects or adverse events, and by routine blood biochemistry parameters of liver and renal functions.

PSQI scores significantly improved over time (P < 0.0001), with greater and earlier benefits at 400 mg/day (−30% vs. −15%; P < 0.05). The 400 mg dose also produced significant reductions in depression (−26%), anxiety (−18%), and stress (−22%) scores (all P < 0.001), together with increased positive and negative affect together with Warwick-Edinburgh Mental Well-Being Scale (+15%). Quality of life improved across total score (33%) and its four domains, with significant results in physical well-being (P < 0.05). No statistically significant changes in safety parameters were detected and no adverse effects were reported.

MOP, particularly at 400 mg/day, confirmed to significantly improve sleep and life quality, mood, and overall mental well-being.

These findings support and extend the health benefits of MOP as a well-tolerated, safe natural approach in a dose-dependent frame to managing sleep quality and emotional distress. Future placebo-controlled trials are warranted to confirm these results and further elucidate the underlying mechanisms of action.

## Full-text entities

- **Genes:** GGT1 (gamma-glutamyltransferase 1) [NCBI Gene 2678] {aka CD224, D22S672, D22S732, GGT, GGT 1, GGTD}, GPT (glutamic--pyruvic transaminase) [NCBI Gene 2875] {aka AAT1, ALT, ALT1, GPT1, SGPT}
- **Diseases:** insomnia (MESH:D007319), irritability (MESH:D001523), Anxiety (MESH:D001007), cytotoxic (MESH:D064420), MOP (MESH:D016736), inflammation (MESH:D007249), tension (MESH:D018781), Sleep impairment (MESH:D012893), emotional distress (MESH:D012128), restless legs syndrome (MESH:D012148), emotional (MESH:D003072), Depression (MESH:D003866), obstructive sleep apnea (MESH:D020181), HPA axis hyperactivity (MESH:D007029), hypersensitivity (MESH:D004342)
- **Chemicals:** cortisol (MESH:D006854), TG (MESH:D014280), M. officinalis (-), rosmarinic acid (MESH:C041376), benzodiazepines (MESH:D001569), cholesterol (MESH:D002784), creatinine (MESH:D003404), glucose (MESH:D005947), water (MESH:D014867), phospholipid (MESH:D010743)
- **Species:** Homo sapiens (human, species) [taxon 9606], Melissa officinalis (common balm, species) [taxon 39338]

## Full text

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## Figures

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## References

22 references — full list in the complete paper: https://tomesphere.com/paper/PMC12952214/full.md

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Source: https://tomesphere.com/paper/PMC12952214