Because symptoms have sources. A research-backed clinical tool that maps your biomarkers to your mood — before and after baby.
After nearly 15 years as a Registered Dietitian, and through my own lived experience with postpartum depression, I discovered something that changed everything: mood symptoms often have measurable roots in nutritional biochemistry. Elevated copper. Depleted ferritin. Low omega-3. These are not just numbers on a lab report — they are often a part of the biochemical story of changes that happened to your brain during and after pregnancy. ISLA is the tool I wish had existed for me.
When I made the decision to become a single mother by choice, people commended me on my bravery. What I didn't know was just how brave I would need to be.
I was so fortunate to have a healthy baby girl named Isla. But starting in the 3rd trimester and continuing to when she was born, I felt like my brain got hijacked. Some days I felt like I could barely breathe. I couldn't think clearly. I couldn't recognize myself. Postpartum depression is terrifying, and many women have lost their lives to this horrific mental health crisis.
Thankfully, I had the support and help I needed. Around 3 months postpartum, I entered an intensive outpatient program that combined therapy and medication, and it saved me. Medication and therapy can be life-saving. They were for me. I will never diminish that truth.
But a couple of years later, something shifted in how I understood what had happened to me.
As a Registered Dietitian pursuing my PhD in psychology and working in mental health, I started learning about the intricate relationship between nutritional biochemistry and mental health. I became fascinated, almost obsessed, with how certain nutrient imbalances have strong correlational links to mental health disorders, including perinatal mood and anxiety disorders.
The research was there. The copper-zinc dysregulation patterns in postpartum women. The omega-3 depletion studies. The ferritin-serotonin connection. The methylation impairments. All of it published. All of it peer-reviewed. But in the typical workflows of prenatal and postpartum care, it's difficult to integrate this additional layer of biochemical investigation into routine screening.
I knew I needed to do something: not just to create awareness about perinatal mental health, but to help leave no stone unturned when it comes to maternal mental health care. Therapy saved me. Medication saved me. But I also wanted to create a way for expecting and new mothers to look at their individual biochemistry, to investigate whether there were measurable, correctable nutritional contributors to their symptoms that no one was checking.
From that mission, ISLA was born.
I named this protocol after my daughter because she's the reason I survived, and she's the reason I'm determined that the next generation of mothers will have access to the comprehensive, biochemically-informed care I had to fight for myself.
The ISLA Protocol™ is not a replacement for therapy or medication. It's the missing piece. The investigation that should happen alongside, not instead of, mental health treatment. Because symptoms have sources. And mothers deserve to know what all of theirs are.
I'm here to help. Whether you're a mother navigating your own journey or a clinician interested in integrating ISLA into your practice, reach out.
Email MeAll 12 biomarkers · Quest Diagnostics · Results in 3-5 days
Perinatal nutrition affects mood differently before and after delivery. ISLA accounts for both — with track-specific scoring thresholds and clinical framing.
Every marker in the ISLA Protocol has published evidence linking it to perinatal mood and cognition. These are not fringe theories — they are well-replicated findings that standard obstetric care routinely overlooks.
Enter your values. Get your MoodRoot™ Report. Share it with your provider. No account. No cost. Built by a Registered Dietitian who has been where you are.
Your track determines how lab values are scored and how results are framed. Both use the same 12 biomarkers.
Medication and therapy — including CBT, interpersonal therapy, and other evidence-based approaches — are often the most appropriate and most effective interventions for perinatal mood disorders. The ISLA Protocol does not suggest otherwise. What it investigates are the nutritional and biochemical factors that frequently co-exist with mood symptoms, are almost never evaluated in standard care, and can worsen or prolong symptoms even when other treatments are in place.
This tool is designed to complement your full treatment plan — not replace any part of it. If you are currently taking medication or working with a therapist, please continue. Your MoodRoot™ Report is a document to bring to those conversations, not a reason to step away from them.
If you are in crisis or experiencing thoughts of self-harm, please reach out for help now. Resources are provided at the bottom of every report.
The ISLA Protocol generates your MoodRoot™ Report from your actual lab values. Here's where you are right now — choose whichever path makes sense for you.
Enter the values from your lab report. Leave fields blank if a test was not ordered — only entered values will appear in your report. Do not convert units.
The ISLA Protocol is one piece of your care. Medication, therapy, and peer support are often the most critical interventions for perinatal mood disorders. Please use these resources.
Not yet — and that's an important distinction to understand. The ISLA Protocol is a clinical decision support tool built on a synthesis of peer-reviewed research across nutritional biochemistry, perinatal psychiatry, and functional medicine. It was developed by a Registered Dietitian with graduate-level training in nutritional science and extensive clinical experience in perinatal care.
This is how most clinical tools begin. The Edinburgh Postnatal Depression Scale (EPDS) — today's global gold standard for postpartum depression screening — was developed in 1987 by Cox, Holden, and Sagovsky based on expert clinical judgment and item selection, not a prospective RCT. It was published, used in practice, and validated afterward through decades of independent research. The PHQ-9 followed a similar trajectory: developed from clinical frameworks, field-tested, then formally validated over time.
It's also worth understanding why robust clinical trials in this population are rare to begin with. Pregnant and postpartum women are considered a protected population in research ethics — meaning they are routinely excluded from clinical trials due to liability concerns and the complexity of obtaining informed consent during a vulnerable period. This is not a gap unique to ISLA; it is a systemic reality of perinatal research. The result is that clinicians caring for pregnant and postpartum women are frequently making evidence-informed decisions based on the best available data — not perfectly controlled RCTs — because those trials often don't exist and may never exist. ISLA operates in exactly that same evidence landscape.
ISLA follows the same evidence-informed development model: grounded in established research, designed for clinical use, and positioned for prospective validation as adoption grows.
Every biomarker threshold, every symptom domain, and every clinical interpretation in the ISLA Protocol is mapped to peer-reviewed literature — including meta-analyses, systematic reviews, and prospective cohort studies published between 2021 and 2024. The tool itself synthesizes that evidence; it doesn't generate conclusions from nothing.
What hasn't happened yet is an independent study that tests the ISLA Protocol as a composite instrument. That's a meaningful distinction — and one we're transparent about. Clinical dietitians synthesize research to inform individualized care every day. What ISLA does is make that synthesis visible, reproducible, and reviewable by the ordering clinician. That is a feature, not a flaw.
Standard perinatal depression screenings like the EPDS, PHQ-9, or GAD-7 are designed to identify whether a mood disorder may be present. They are symptom-only tools and do not address why those symptoms are occurring or what nutritional contributors may be involved.
The ISLA Protocol is not a replacement for those screenings — it's a next step. It pairs symptom data with objective lab values across twelve nutritional biomarkers known to affect mood, cognition, energy, and neurological function in the perinatal period. The result is a personalized MoodRoot™ Report that a clinician can use to guide targeted nutritional intervention alongside — not instead of — standard mental health care.
The ISLA Protocol was developed by Maryann Walsh, RD — a Registered Dietitian with a B.S. in Biology, a B.S. in Nutrition, an M.S. in Food & Nutrition, and doctoral-level training as a PhD Candidate. She is a two-time TEDx speaker on nutritional approaches to mental health and the founder of Walsh Nutrition Consulting, Inc.
The tool reflects her clinical work at the intersection of nutritional biochemistry and perinatal mental health, informed by her academic training and the growing body of research on micronutrient depletion in pregnancy and postpartum recovery. As a Registered Dietitian, Maryann is a licensed healthcare professional trained specifically to interpret laboratory values and translate nutritional science into clinical care.
Standard laboratory reference ranges are designed to identify clinical deficiency or pathology — typically set at the lowest 2.5% of a reference population. They are not designed to identify optimal function for a nutrient-demanding state like pregnancy or lactation, and they are rarely pregnancy-specific.
The ISLA Protocol uses functional nutrition reference ranges — thresholds derived from research on the levels at which nutritional status supports healthy mood, cognitive function, and neurological activity in the perinatal period. A result that reads "normal" on a standard lab report may still fall below the range associated with optimal neurotransmitter synthesis or anti-inflammatory function. This distinction is central to the tool's clinical value.
No. The ISLA Protocol is a nutritional assessment tool intended to be used as part of a comprehensive care approach. It does not diagnose, treat, or replace psychiatric evaluation, therapy, or medication. Perinatal mood and anxiety disorders often require multidisciplinary treatment — including mental health professionals, OBs or midwives, and in some cases psychiatry — and nutritional support is one meaningful component of that broader plan.
Results generated by the ISLA Protocol are intended to inform a conversation with a qualified healthcare provider, not to replace one.
Yes. Many women use the ISLA Protocol proactively — to establish a nutritional baseline during pregnancy, to identify subclinical depletions before symptoms emerge, or to support postpartum recovery as a preventive measure. Nutritional depletion often precedes mood symptoms by weeks or months, particularly with nutrients like ferritin, omega-3, and vitamin D that decline gradually throughout gestation.
Early identification of nutritional gaps is one of the most powerful things you can do to protect your mental health through the perinatal period.
The best starting point is your OB, midwife, or primary care provider. You can bring your MoodRoot™ Report to any clinical appointment and request that specific labs be ordered. Many of the markers included in the ISLA Protocol — ferritin, vitamin D, TSH, B12, homocysteine — are commonly ordered in routine prenatal care; others may require a specific request.
If you're working with a Registered Dietitian or integrative provider, they can often order labs directly or work alongside your OB to request a comprehensive panel. Some markers (such as the Omega-3 Index and RBC Magnesium) may require ordering through a specialty or functional lab.
You can also order the complete ISLA lab panel directly through Fullscript for $275. This includes all 12 biomarkers evaluated in the ISLA Protocol. Order here: https://us.fullscript.com/j/maryann-walsh
Can't find the answer you are looking for? Reach out via email, as ISLA is new, I read every email personally to ensure any issues or suggestions are taken into consideration. Please allow 24-48 business hours for a response!
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