When and How to Refer Your Client to a Dietitian
By Brittaney Wood, LPC and Brittany Adelman, RD LDN
Co-founders, allyd health | Published on allyd Insights
At some point in your career as a therapist, you have sat across from a client and known clearly, instinctively that what they are describing is not only a mental health issue. Maybe they are telling you about the 2am bingeing they cannot stop. Maybe they are describing the brain fog that makes it impossible to concentrate, no matter how many executive function strategies you give them. Maybe they are losing weight in a way that concerns you, or restricting in ways they minimize, or eating in patterns so chaotic they can barely track them.
You know something nutritional is happening. You also know it is outside your scope.
What most therapists do not know is exactly when to refer, how to make a referral that actually sticks, and how to find a dietitian who will not undo the clinical work you have spent months building. This post covers all three.
Why therapists hesitate to refer
The hesitation is understandable. Therapists are trained to be the integrative provider to hold the whole person in the room. Referring out can feel like handing a piece of your client to someone you do not know, whose clinical philosophy you cannot verify, whose approach to food and bodies may directly contradict your own.
There is also the practical problem: most therapists do not have a dietitian in their network they trust. Finding one requires knowing what to look for, and most graduate training programs do not cover that.
The result is that many therapists hold nutrition concerns longer than they should, hoping the issue will resolve as the mental health work deepens. Sometimes it does. Often it does not because the nutritional dysregulation is contributing to the mental health symptoms in ways that therapy alone cannot address.
When to refer your client to a dietitian: the clinical signals
A referral to a registered dietitian is clinically indicated when any of the following are present.
Disordered eating patterns that are not the primary clinical focus. If your client is in therapy for depression, anxiety, trauma, or ADHD and you notice chaotic eating, restrictive patterns, significant weight fluctuation, or preoccupation with food and body that is not being directly addressed in treatment, a dietitian referral is appropriate. You do not need to be treating an eating disorder to make this referral.
Active eating disorder, in any presentation. Any client with a suspected or confirmed eating disorder, whether anorexia nervosa, bulimia nervosa, binge eating disorder, ARFID, or another specified feeding and eating disorder, should have a dietitian on their treatment team. This is not optional. Nutritional rehabilitation and medical monitoring are outside therapeutic scope regardless of how comfortable you are with eating disorder work.
Significant nutritional deficiencies presenting clinically. If your client reports ongoing fatigue that does not respond to sleep hygiene interventions, persistent cognitive difficulties including poor concentration and memory, low mood that does not respond to therapy, or physical symptoms like hair loss, cold intolerance, or frequent illness, these can indicate nutritional deficiencies that warrant assessment by a registered dietitian, ideally one who works with lab interpretation.
ADHD with significant eating pattern irregularity. ADHD and disordered eating co-occur at high rates. Appetite suppression from stimulant medication, hyperfocus-related meal skipping, impulsivity-driven eating patterns, and challenges with meal planning and preparation are all clinical presentations that a dietitian can address in ways that complement your therapeutic work.
Gastrointestinal symptoms that are affecting quality of life. Irritable bowel syndrome, constipation, bloating, nausea, and other GI symptoms are common in anxious clients and trauma survivors. The gut-brain connection is bidirectional. GI distress contributes to anxiety, and anxiety contributes to GI distress. A dietitian with gut health experience can address the nutritional component while you address the mental health component.
Client is pregnant, postpartum, or navigating a major medical condition. Nutritional needs change significantly during pregnancy and postpartum. Clients managing diabetes, thyroid conditions, autoimmune conditions, or recovering from significant illness have nutritional needs that are outside your scope to address.
Client is explicitly asking about nutrition. This one is straightforward. If your client is asking you about what they should eat, whether supplements are worth taking, how to structure their meals, or how food might be affecting their mood or energy, the right answer is a warm referral to a registered dietitian, not a nutrition recommendation from you.
What to look for in a dietitian you refer to
Not all registered dietitians are the right fit for your clients, and a bad referral can damage the therapeutic relationship and your client's trust in providers.
When you are evaluating a dietitian for referral, prioritize the following.
Eating disorder competency and safe messaging practices. A dietitian who uses weight-centric language, prescribes rigid meal plans without attention to a client's psychological relationship with food, or applies a diet culture framework will actively harm clients with eating disorder histories and body image concerns. Look for dietitians who are trained in Health at Every Size principles, intuitive eating, and eating disorder assessment.
Mental health literacy. The dietitian you refer to should understand the relationship between nutrition and mental health conditions. They should be familiar with the clinical presentations your clients bring, such as anxiety, depression, ADHD, and trauma, and be able to situate their nutritional recommendations within that context.
Willingness to coordinate care. A good referral results in a collaborative relationship, not a handoff. Look for a dietitian who communicates with referring providers, is open to coordination calls, and uses shared documentation frameworks when appropriate.
Telehealth availability and insurance paneling. Practical access matters. A dietitian who only accepts cash pay at $200 per session is not a realistic referral for most clients. Know what your clients can access before you refer.
How to make the referral: the warm handoff
A warm referral is significantly more effective than handing a client a name and phone number. The evidence comes from integrated care, where a warm handoff, a direct and personal introduction from the referring provider to the receiving provider, consistently improves follow-through. In one primary care study, every patient who received a warm handoff scheduled a behavioral health visit, compared with 58 percent of those given a standard referral, and 92 percent went on to attend a follow-up visit, compared with 50 percent (Mitchell, Olson, and Randolph, 2022). A separate randomized study found that patients who received a warm handoff were significantly more likely both to accept the referral and to stay engaged in treatment (Fountaine, Iyar, and Lutes, 2023). The principle carries directly to a therapist-to-dietitian referral. A handoff where you have a relationship with the dietitian, communicate before or during the referral, and frame it specifically and supportively will land far more often than a name passed across the desk.
In practice, a warm referral to a dietitian looks like this.
Name the clinical rationale explicitly. Do not make the referral vague. "I think it might be helpful to talk to someone about nutrition" is less effective than "I have noticed that your eating patterns are significantly affecting your energy and mood, and I want to connect you with a dietitian who specializes in mental health and eating patterns. This is a clinical priority, not a suggestion."
Anticipate and address resistance. Many clients feel shame about eating and are reluctant to see a dietitian because they anticipate judgment, weight-focused advice, or a prescriptive experience that feels punitive. Address this directly: "The person I am referring you to practices from an approach that does not focus on weight. Her goal is to help you understand how food is affecting how you feel, not to put you on a diet."
Make the connection, not just the recommendation. If you have a relationship with a dietitian you trust, offer to send a brief referral note or introduce the client by name. This is clinically appropriate and significantly increases referral follow-through.
Coordinate on release of information. Before your client's first dietitian appointment, initiate an ROI that allows you and the dietitian to communicate." And the comma splice just after: change "This does not need to be elaborate, a brief check-in after the first session is enough clarify the scope of what you will share and what you want to receive. This does not need to be elaborate, a brief check-in after the first session is enough to establish a collaborative relationship.
What the dietitian referral process looks like in practice: a brief example
Your client is a 28-year-old woman with generalized anxiety disorder. She has been in therapy with you for eight months and is making meaningful progress on her worry patterns and avoidance behaviors. In the past two months, she has mentioned multiple times that she is 'a mess with food': skipping meals when anxious, then eating large quantities of comfort food at night, and feeling sluggish and foggy most mornings. She denies an eating disorder and does not want to talk about food in therapy, but the pattern is clearly affecting her mood regulation and the progress you have made together.
This is a referral situation. The eating pattern is contributing to the anxiety cycle and it is outside your scope to address directly. The referral conversation might sound like this: "I want to follow up on something you mentioned a few sessions ago, the eating pattern where you skip meals during the day and then eat a lot at night. I have been thinking about this clinically, and I believe this pattern is contributing to the anxiety and the fatigue you describe in the mornings. I would like to refer you to a registered dietitian I work with who specializes in exactly this kind of presentation, anxiety and eating patterns. She is not going to put you on a diet. Her work is about understanding how your eating is affecting how you feel and finding a pattern that actually supports you."
Building a referral relationship with a dietitian
The most effective referral relationships between therapists and dietitians are ongoing professional relationships not one-time handoffs. When you find a dietitian whose clinical approach aligns with yours, invest in the relationship.
Introduce yourself before you need to refer. A brief email or a 15-minute phone call goes a long way. Share your clinical approach, the population you serve, and what you look for in a collaborative relationship.
Establish a mutual referral pattern. A dietitian who trusts your clinical approach will refer clients back to you. Integrative providers who maintain reciprocal referral relationships have more stable caseloads and serve their clients better.
Communicate during shared cases. When you and a dietitian are working with the same client, periodic brief coordination even one email after the client's first few sessions significantly improves outcomes and reduces the risk of mixed clinical messaging.
If you are a therapist who does not yet have a dietitian in your professional network, that is the gap allyd health was built to address. The peer pairing program inside the allyd membership matches therapists and registered dietitians on specialty, clinical approach, and telehealth availability and provides a structured agenda for the first conversation to anchor the relationship from the start.
References:
Mitchell, D., Olson, A., and Randolph, N. (2022). The impact of warm handoffs on patient engagement with behavioral health services in primary care. Journal of Rural Mental Health, 46(2), 82 to 87. https://doi.org/10.1037/rmh0000199
Fountaine, A. R., Iyar, M. M., and Lutes, L. D. (2023). Examining the utility of a telehealth warm handoff in integrated primary care for improving patient engagement in mental health treatment: Randomized video vignette study. JMIR, e40274. https://doi.org/10.2196/40274 (the DOI resolves to the exact journal title if you want to confirm it before publishing)
Brittaney Wood, LPC is a licensed professional counselor specializing in ADHD, anxiety, eating disorders, and the ED-ADHD-OCD intersection. She is co-founder of allyd health and practices through Through the Woods Mental Health Services. Brittany Adelman, RD LDN is a registered dietitian specializing in mental health nutrition, ADHD, and eating disorders. She is co-founder of allyd health and practices through Function Forward Nutrition.
allyd health is a professional membership for therapists, registered dietitians, and psychiatric providers in integrative independent practice. Learn more at joinallyd.com.