Research

What we know. What we don't. What we're studying.

Every protocol Beckie uses is grounded in nutritional psychiatry research. We tag every claim by evidence strength so you always know where we stand.

Our approach

Evidence-graded, not cherry-picked.

We use a three-tier evidence system: Strong (multiple RCTs), Emerging (observational + mechanistic data), and Early (animal or in vitro only). Beckie only acts on Strong or Emerging evidence. Early signals are disclosed but not acted upon.

Key references

What the research says.

Our protocols draw from the work of Felice Jacka (SMILES trial), Drew Ramsey MD, Uma Naidoo MD, and the broader nutritional psychiatry literature. We maintain a living reference list below.

Selected evidence — updated quarterly

These are the key studies informing Simmerstate's protocols. Each is graded by evidence strength: Strong (multiple RCTs), Emerging (observational + mechanistic), or Early (preliminary data).

Strong2017

A randomised controlled trial of dietary improvement for adults with major depression (SMILES trial)

Jacka FN, O'Neil A, Opie R, et al. — BMC Medicine

A Mediterranean-style diet intervention significantly reduced depressive symptoms vs. social support alone. Effect size comparable to antidepressants in mild-to-moderate depression.

Strong2022

Omega-3 fatty acid supplementation and depression: a systematic review and meta-analysis

Liao Y, Xie B, Zhang H, et al. — Translational Psychiatry

EPA-dominant omega-3 supplementation shows consistent antidepressant effects across 26 RCTs (n=2,160). DHA alone is less effective than EPA or combined formulations.

Emerging2017

Magnesium for treatment of depression: a systematic review

Boyle NB, Lawton C, Dye L — Nutrients

Dietary magnesium deficiency is associated with elevated anxiety and depression risk. Supplementation shows benefit in subclinical deficiency, particularly in sleep-onset anxiety.

Strong2019

The gut microbiome in neurological disorders

Cryan JF, O'Riordan KJ, Cowan CSM, et al. — The Lancet Neurology

Establishes gut-brain axis mechanisms linking dietary microbiome changes to mood, cognition, and anxiety via vagus nerve and serotonin precursor pathways.

Emerging2021

Nutritional psychiatry: towards improving mental health by what you eat

Adan RAH, van der Beek EM, Buitelaar JK, et al. — European Neuropsychopharmacology

Reviews dietary patterns, specific nutrients, and gut microbiota as modifiable factors in depression and anxiety. Proposes nutritional psychiatry as a formal adjunct to standard care.

Want to go deeper?

The library is growing.

Simmerstate is building a living reference database — every claim tagged by evidence strength, every protocol mapped to food. It’s available inside the app today.

Open Simmerstate