Amino Acids · L-Theanine

Theanine alleviates sleep disturbances and depression induced by sleep deprivation through neuroinflammation reduction

Theanine, a phytochemical from Camellia sinensis, exerts therapeutic effects on mental disorders caused by cumulative stress, including mild sleep disturbances and depression induced by sleep deprivation. The neuroprotective mechanism involves alleviating neuroinflammation. The paper reviews literature from the past 5 years.

1 min read•Updated Jul 7, 2026•0 RCTs•View structured evidence →
Evidence Score32/100
Human RCT☆☆☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism☆☆☆☆☆
Safety☆☆☆☆☆
Confidencelow

This article is automatically generated from the structured evidence profile behind the claim above. Scores reflect the quality and quantity of available research, not clinical advice.

Theanine alleviates sleep disturbances and depression induced by sleep deprivation through neuroinflammation reduction The current body of evidence comprises 1 study. EvidenceHub rates the overall confidence at 32/100 (low).

The Claim

Theanine alleviates sleep disturbances and depression induced by sleep deprivation through neuroinflammation reduction

This conclusion is most relevant to: Animal models and human studies (not explicitly specified in abstract).

What the Research Shows

The conclusion draws on 1 linked study. Highlights from the cited literature:

  • ▸Theanine: a phytochemical candidate for neural protection. (Journal of the science of food and agriculture, 2026) —

How It Works

The proposed biological pathway:

  • ▸Alleviation of neuroinflammation
  • ▸Reduction of oxidative stress-induced ferroptosis in neuronal cells
  • ▸Modulation of neural stem cell differentiation and development
  • ▸Therapeutic effects on sleep disturbances and depression

Who Might Benefit

Evidence fit by population:

  • ▸Animal models and human studies (not explicitly specified in abstract)

Limitations & Caveats

Important context when interpreting this evidence:

  • ▸Abstract does not specify sample sizes or effect sizes from individual studies
  • ▸No direct human RCT data provided in the abstract; mechanisms are primarily from preclinical studies
  • ▸Further investigations needed for rigorous understanding

References

  1. 1.Qiang Y, Luo Q, Zhang J, Ming C, Chong X, Huang F, Gui A, Wang J, Yin H, Ahmad MZ, He HF. “Theanine: a phytochemical candidate for neural protection..” Journal of the science of food and agriculture, 2026. PMID: 42163019 DOI: 10.1002/jsfa.70740
Disclaimer: This article is auto-generated from structured research data for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.