Medically reviewed by Shahrzad Shadmani, PMHNP-BC, FNP-C, founder of Integrative Psychiatry and Wellness (IPW Health).
Published September 16, 2026.
You have been treated for depression for a year. The medication helped, partly. You still wake at four in the morning most nights, you are exhausted in a way sleep does not fix, and nobody has checked your thyroid since before the diagnosis. The treatment is not wrong. It is just that the question being asked has been narrower than your situation.
That gap is what integrative psychiatry is meant to close. The term is used loosely — and sometimes badly — so it is worth being precise about what it means in this practice and what it does not.
The short definition
Integrative psychiatry means conventional psychiatric diagnosis and treatment, delivered to the usual standard, plus systematic attention to the physical and behavioural factors that are known to affect psychiatric symptoms.
Both halves matter. Diagnosis follows the same criteria any psychiatric clinician uses. Medication, when it is indicated, is prescribed on the same evidence as anywhere else. Psychotherapy is recommended where it is first-line, and for several conditions it is first-line. None of that is replaced.
What is added is that the workup does not stop at the psychiatric interview. Sleep, thyroid and metabolic function, documented nutritional deficiencies, activity, substance use and current medications are examined as part of the picture — not because of a philosophy, but because each of them has evidence behind it and each of them changes what treatment should look like.
What gets examined, and why
Sleep
Sleep is the single most productive thing to look at. Disturbed sleep is a symptom of most psychiatric conditions and also a driver of them; the relationship runs in both directions. Untreated insomnia makes depression harder to treat and raises the risk of recurrence, and obstructive sleep apnoea produces fatigue, low mood and cognitive complaints that are frequently attributed to depression instead.
So the questions get asked properly: how long it takes to fall asleep, how often you wake, whether you snore, whether anyone has witnessed you stop breathing, how you feel on waking. For chronic insomnia, cognitive behavioural therapy for insomnia is the recommended first-line treatment ahead of medication. Sleep studies are not performed here and are referred out.
Thyroid and metabolic function
Thyroid dysfunction can present as depression, anxiety, fatigue or cognitive slowing, and it is common enough and cheap enough to test that there is no good argument for leaving it unexamined in someone with new or treatment-resistant symptoms. Anaemia, vitamin B12 deficiency and disorders of glucose metabolism overlap with psychiatric symptoms in the same way.
This is also a two-way street in the other direction: several psychiatric medications affect weight, glucose and lipids, which is a reason for monitoring rather than a reason to avoid treatment.
IPW orders and interprets laboratory work directly, so this part of the evaluation happens here rather than being handed off.
Nutrition status — where a deficiency is documented
The defensible version of nutrition in psychiatry is narrow and it is worth stating plainly. If a blood test documents a deficiency — B12, iron, vitamin D — correcting it is ordinary medicine, and symptoms that were caused by that deficiency may improve. That is the claim, and it stops there.
This article does not recommend supplements, and neither does a first visit here by default. Supplements interact with prescribed medication, several meaningfully, and they are not a substitute for treatment. If you take any, bring the labels — that information belongs in the chart.
Physical activity
Exercise has reasonable evidence as an adjunct in depression and anxiety. It is not a replacement for treatment of moderate or severe illness, and prescribing it as one to someone who cannot get out of bed is both ineffective and demoralising. It is discussed as one component, sized to what is actually possible right now.
Substance use, and what is already in your medicine cabinet
Alcohol, cannabis, nicotine and caffeine all affect sleep, anxiety and mood, and all four are routinely left out of psychiatric histories because people expect to be judged for them. They are asked about here for practical reasons: they change what treatment will work. So does your current medication list, since several non-psychiatric medications contribute to low mood, anxiety or fatigue.
What integrative psychiatry is not
This is where the term gets misused, so the boundaries are stated explicitly.
It is not replacing evidence-based treatment with supplements or lifestyle change. Nobody here will suggest you stop a working medication in favour of a nutritional protocol. If a condition has a first-line treatment, that is what gets offered.
It is not unvalidated testing. Broad “functional” panels, hair mineral analysis, food sensitivity IgG testing and similar offerings are not used here. They generate findings without clinical meaning, cost money, and frequently lead to treatment of a number rather than a person. Laboratory testing is ordered when your history and symptoms indicate it — not as a routine screen of everything measurable.
It is not a promise that we will find the one cause. Sometimes the workup turns up a thyroid abnormality or a B12 deficiency and the picture changes. More often it turns up two or three contributors that each account for part of the problem, and treatment addresses the psychiatric condition and those contributors at the same time.
What about the gut–brain connection?
It comes up constantly, and it deserves an honest answer rather than either enthusiasm or dismissal.
There is real science here. The gut and the brain communicate through the vagus nerve, through immune signalling and through metabolites produced by gut bacteria, and this is a genuinely active area of research. What has not been established is that a particular gut profile causes a particular psychiatric condition in an individual, or that altering the microbiome is a treatment for depression or anxiety. Probiotic and dietary interventions for psychiatric conditions remain under investigation rather than established care.
So the honest position is: interesting, unsettled, and not yet something to base your treatment on. We will not sell you a protocol built on it.
The same discipline applies to stress physiology. Panic involves rapid sympathetic nervous system activation — that is why your heart races. That much is well described. The broader claims about chronic stress “unbalancing your chemistry” are not, and are left out.
What this looks like at a first appointment
A full psychiatric evaluation: what you are experiencing, when it started, what has been tried, family history, and a diagnostic assessment. Then the rest of it — sleep, medical history and current medications, substance use, recent laboratory work or a decision to order some, and what is realistically changeable in your week.
You leave with a diagnostic impression, a plan that names what is being treated and how, and a clear statement of what remains uncertain. If a referral is more appropriate than treatment here, you get that instead.
IPW Health provides psychiatric evaluation and medication management by telehealth in California, Oregon, Washington and Colorado, and in person in Mission Viejo, California. Our clinicians order and interpret laboratory work directly, and our therapy team provides cognitive behavioral therapy, exposure and response prevention, and EMDR and trauma-focused therapy. Call (949) 259-5123.
This article is general education, not medical advice, and reading it does not create a patient–provider relationship. Treatment decisions depend on your history and should be made with a clinician who knows it.
If you are in crisis or having thoughts of harming yourself, call or text 988 to reach the Suicide and Crisis Lifeline, available 24 hours a day in the United States. If you are in immediate danger, call 911.
Sources
- National Center for Complementary and Integrative Health (NIH). Complementary, Alternative, or Integrative Health: What’s In a Name?
- National Institute of Mental Health. Depression; Anxiety Disorders.
- National Heart, Lung, and Blood Institute (NIH). Insomnia; Sleep Apnea.
- American Academy of Sleep Medicine. Clinical Practice Guideline for the Behavioral and Psychological Treatment of Chronic Insomnia in Adults.
- National Institute of Diabetes and Digestive and Kidney Diseases (NIH). Hypothyroidism (Underactive Thyroid).
- National Institutes of Health, Office of Dietary Supplements. Vitamin B12; Vitamin D.
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR).
