Why Does Integrative Psychiatry Focus on Both Mind and Body?

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.

Integrative psychiatry exists to widen that question.

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.

Integrative psychiatry: 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.

Integrative psychiatry across life stages

An integrative approach is especially useful at points in life where physical and mental health change together. Pregnancy and the postpartum year bring shifts in sleep, hormones, thyroid function and iron stores alongside a higher risk of depression and anxiety. Perimenopause brings fluctuating hormones, night sweats and disrupted sleep at the same time as increased vulnerability to mood symptoms. Midlife and later adulthood bring more medications, more medical conditions and more opportunities for interactions.

At each of these stages, a narrow focus on psychiatric symptoms alone can miss part of the picture. Integrative psychiatry keeps the physical context in view while still treating the psychiatric condition directly, with therapy, medication or both when they are indicated.

How integrative psychiatry measures progress

A wider workup is only useful if you can tell whether the plan is working. Integrative care at IPW Health uses measurement-based care: short, validated questionnaires, such as the PHQ-9 for depression and the GAD-7 for anxiety, completed at the start of treatment and at regular intervals afterward. Scores are reviewed alongside how you describe your days, your sleep, and any side effects.

This matters because improvement is often gradual and easy to underestimate from inside it. A falling score can confirm that a change is working; a flat score is a signal to adjust rather than wait. It also keeps the focus on outcomes rather than on adding more tests or supplements.

Working alongside your other clinicians

Integrative psychiatry does not replace your primary care provider, OB-GYN or specialists. When the evaluation points to something outside psychiatry, such as an abnormal thyroid result, possible sleep apnea, or a heart rhythm concern, the right step is coordination: sharing results, recommending follow-up, or referring to the clinician best placed to manage it.

Coordination also runs the other way. If you are starting a new medication for another condition, beginning hormone therapy, or planning a pregnancy, letting your psychiatric clinician know helps keep the overall plan safe and consistent.

How to evaluate integrative claims you see online

A great deal of content uses the words “integrative” or “functional” to sell tests, supplements and protocols with little evidence behind them. A few questions help sort useful information from marketing:

• Does the claim name a specific condition and a specific outcome, or does it promise to fix “root causes” in general?
• Is there evidence from controlled studies in people, or mainly testimonials and mechanisms?
• Is the person recommending the test or supplement also selling it?
• Would the result of a proposed test actually change the treatment plan?
• Does the approach ask you to stop treatment that is working?

Integrative psychiatry, done responsibly, applies the same standard of evidence to everything it recommends, whether that is a medication, a form of therapy, a lab test or a lifestyle change.

Is integrative psychiatry covered by insurance?

The core parts of integrative psychiatry, including psychiatric evaluation, medication management, therapy and medically indicated lab work, are standard medical care and are often covered by insurance. Coverage depends on your plan. IPW Health is in network with Aetna, Anthem, Blue Cross Blue Shield, Cigna, Medicare, Optum and UnitedHealthcare, and also offers self-pay visits. Specialty tests that lack clinical evidence are usually not covered, which is one more reason they are not part of our routine workup.

Questions to ask an integrative psychiatry provider

• How do you decide which labs or tests to order?
• Will you still treat my psychiatric symptoms directly while we look at other factors?
• How do you approach supplements, and what evidence do you use?
• How will we measure whether treatment is working?
• How do you coordinate with my primary care provider or other specialists?

Clear answers to these questions are a good sign that integrative psychiatry is being practiced with care rather than used as a label.

Frequently asked questions

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).

Related care at IPW Health: Integrative psychiatry, in person in Mission Viejo or by telehealth in CA, OR, WA and CO.