For patients with irritable bowel syndrome, the most frustrating part of the condition is not always the bloating, constipation, diarrhea or abdominal discomfort. It can be a long search for an explanation.
Dr. David Borenstein has built his approach to integrative and functional medicine around patients who feel that search has gone on too long. Founder of Manhattan Integrative Medicine, Dr. Borenstein works with people managing chronic conditions including IBS, small intestinal bacterial overgrowth (SIBO), chronic fatigue, fibromyalgia, thyroid disorders and hormonal concerns. His philosophy is straightforward: symptoms deserve treatment, but they can also be clues to a larger health picture.
That distinction is particularly important with IBS.
Rather than viewing digestive symptoms in isolation, Dr. Borenstein considers gut function alongside nutrition, thyroid health, lifestyle, stress and other factors that may be relevant to the individual patient. It is an approach that reflects a broader shift toward personalized care, but it also highlights something much simpler.
Patients want to feel heard.
“We listen,” Dr. Borenstein says of his practice. “We don’t dismiss.”
For people who have spent years trying to understand chronic digestive problems, that can become an important part of patient satisfaction.
Looking Beyond the IBS Label
IBS can present differently from one patient to another. Dr. Borenstein begins by asking detailed questions about symptoms such as bloating, burping, flatulence, diarrhea, constipation and brain fog. He also asks about a patient’s history, including previous food poisoning and proton pump inhibitor use.
The purpose is to avoid assuming that every person carrying an IBS diagnosis has the same underlying issues.
Dr. Borenstein also considers whether symptoms could overlap with other digestive concerns. His practice may use breath testing when evaluating possible SIBO and explore whether particular foods appear connected to a patient’s symptoms.
This investigative mindset is central to his version of holistic health.
Dr. Borenstein describes functional and integrative medicine as an approach that focuses on the whole person and looks for factors contributing to chronic illness rather than concentrating exclusively on symptom management. Diet, lifestyle and stress reduction play significant roles, as does a detailed medical history and laboratory evaluation.
That does not mean rejecting conventional medicine. Dr. Borenstein is explicit about the opposite.
One misconception he regularly encounters is that functional medicine is anti-medication or opposed to conventional treatment. His view is that pharmaceuticals, surgery, imaging and other traditional tools remain important when appropriate. Functional medicine, in his practice, is intended to work alongside conventional care while widening the clinical lens.
A Holistic Approach to IBS Treatment
For Dr. Borenstein, treating IBS means asking why the digestive system may not be functioning optimally for a particular patient.
His evaluations may consider gut motility, stomach acid, digestive enzymes, short-chain fatty acids, nutritional status and thyroid function. Depending on his findings, his treatment plans can incorporate dietary changes, supplements and other interventions tailored to the patient. He also encourages a low-fermentation diet for some patients with IBS and considers treatments aimed at supporting motility and digestive function when he believes they are indicated.
The important word is personalized.
A patient whose symptoms are associated with a suspected food trigger may need a different strategy from someone Dr. Borenstein believes has SIBO or impaired gut motility. A patient with nutritional deficiencies may present another set of considerations.
This is where his broader philosophy of holistic health becomes relevant. Dr. Borenstein does not see the body’s systems as entirely separate from one another. In discussing hormone and thyroid care, he describes the body as an interconnected network in which hormones, metabolism, nutrition, sleep and lifestyle can influence how a person feels.
Applied to digestive health, that philosophy encourages a wider conversation than simply asking which medication can suppress a symptom.
It asks what else is happening in the patient’s life and health.
IBS Care Is Also About the Patient Experience
Patient satisfaction can be discussed through surveys and scores, but in a medical practice it often begins with something harder to quantify: whether patients believe their concerns have been taken seriously.
That issue matters in Dr. Borenstein’s care model because many of the people who seek him out have already seen other physicians or specialists without getting the improvement they wanted. He identifies patients with chronic conditions who “just can’t seem to get better” as a core population for his practice.
These patients may arrive with extensive medical histories, previous treatments and their own research. Dr. Borenstein says some are already highly informed about their conditions. Rather than treating that interest as an obstacle, his approach incorporates patient education around subjects such as nutrition, lifestyle and sleep.
That changes the relationship between physician and patient.
Instead of a model built primarily around a short appointment and a single complaint, Dr. Borenstein emphasizes a detailed history, comprehensive evaluation and treatment plan informed by the individual patient’s symptoms and laboratory findings. He has criticized what he characterizes as the conventional “15 minutes with the doctor” model for failing some people with chronic disease.
His alternative is more collaborative.
“We work hard WITH the patient to address their issues,” he says.
For someone living with recurring IBS symptoms, that partnership may be as important to the care experience as any individual intervention.
From Fibromyalgia to Functional Medicine
Dr. Borenstein’s interest in integrative medicine began before IBS became one of the chronic conditions he regularly treated.
During his residency training, he encountered a patient with fibromyalgia whose condition was not improving with the treatments available to him. The experience prompted Dr. Borenstein to investigate alternative approaches, pursue additional training and eventually work at an integrative medicine clinic in New York. After seeing patients respond to those protocols, he continued his training and ultimately made integrative and functional medicine a central part of his practice.
Dr. Borenstein earned his medical degree from the Technion Faculty of Medicine in Haifa, Israel, and completed his internship at Staten Island University Hospital. He is board certified in Physical Medicine and Rehabilitation and certified in Medical Acupuncture. His professional background has also included clinical appointments, research involving spinal cord injuries and publication in the European Journal of Ultrasound.
That conventional medical background helps explain an important part of his philosophy. He does not frame holistic medicine as a replacement for traditional medicine.
He sees the two as complementary.
In his description, integrative and functional medicine combines evidence-based modern medicine with holistic approaches while placing greater emphasis on nutrition, lifestyle, prevention and potential contributors to chronic symptoms.
Why Patient Satisfaction Matters in Chronic Care
There is a practical reason patient-centered care is especially relevant to IBS and other chronic conditions.
These problems rarely fit neatly into a single appointment.
Symptoms can change. Diet can matter. Stress and sleep may affect how a person feels. Treatment that works for one patient may not be appropriate for another. Progress can require continued communication and adjustments rather than a single prescription.
Dr. Borenstein’s emphasis on listening is therefore more than a bedside-manner philosophy. It shapes how he gathers information and develops treatment plans.
His stated goal is to understand symptoms in detail, investigate relevant health factors and work with the patient rather than simply move them through a standardized protocol. The same philosophy extends beyond IBS to chronic fatigue, fibromyalgia, SIBO, thyroid problems, hormonal concerns and other conditions treated within his practice.
For Dr. Borenstein, some of the most meaningful outcomes occur when patients arrive after seeing numerous practitioners and feeling that they have exhausted their options. He describes his greatest professional satisfaction as helping those patients finally make meaningful changes in their health.
That may also explain why IBS is a natural fit for his broader approach to medicine.
The digestive symptoms matter. But so does the person experiencing them.
By connecting IBS care with nutrition, gut function, lifestyle, broader health factors and sustained physician-patient collaboration, Dr. David Borenstein is making the case for a form of holistic health that begins not with a particular therapy, but with a more fundamental clinical habit: listening closely enough to understand what each patient needs.