Mental-Physical Connection

Some believe that physical and emotional health exist in separate worlds, when in fact, they are undeniably entwined.

Mental and physical health operate as a two way system. When one is disrupted, the other is almost always affected. “Nutrition is central to this relationship as it fuels the brain, regulates hormones, supports immunity, and stabilizes energy systems,” said nutritionist Debbie Petitpain. At the same time, mental health affects behaviors such as eating patterns, physical activity, sleep, medication adherence, and substance use, shaping physical health outcomes.

Mental health conditions can lead to irregular eating patterns, reduced diet quality, emotional eating, or under-eating. Chronic stress, anxiety, and depression are associated with elevated cortisol (the stress hormone), increased inflammation, and poorer cardiometabolic outcomes. Depression and anxiety are linked to higher risk of heart disease, type 2 diabetes, and gastrointestinal disorders.

Physical health affects mental health through poor nutrition, (particularly low intake of iron, B vitamins, iodine, omega-3 fatty acids, and protein) can impair cognition, mood regulation, and energy levels, commonly seen in chronic diseases like diabetes, cardiovascular disease, and autoimmune disorders.

Conditions directly linked to the mental-physical connection include:

• Depression and cardiovascular disease - Depression increases the risk of developing heart disease, and heart disease increases the risk of depression through shared mechanisms such as inflammation, problems with blood circulation, and lifestyle factors.
• Type 2 diabetes and depression - Depression raises diabetes risk, and diabetes increases the odds of depression. Blood sugar variability and insulin resistance affect brain function, while depression impairs self-management behaviors.
• Iron-deficiency anemia and cognitive/mood symptoms - Iron deficiency reduces the body’s ability to transport oxygen, leading to fatigue and impaired concentration.
• Eating disorders - These are clear examples where mental health conditions directly cause severe physical consequences, including electrolyte imbalances, cardiovascular complications, bone loss, and hormone disruption.

To maintain a healthy mental-physical balance, Petitpain recommends:

• Prioritize diet quality, most days, emphasizing whole foods, adequate protein, fiber-rich carbohydrates, healthy fats, and key micronutrients.
• Reduce inflammation with a diet including a variety of colorful fruits and vegetables, nuts and seeds and by reducing intake of sugary foods, processed foods and red meat.
• Support your gut health which supports mood regulation through the “gut–brain axis” by eating fiber-rich foods and foods with gut friendly bacteria like yogurt, kefir, and fermented vegetables, like sauerkraut and kimchi.

Petitpain urges anyone coping with stress or other mood problems by overconsuming alcohol or foods, and/or avoiding eating to seek professional help.

Debbie Petitpain, MBA, RDN is a spokesperson for the Academy of Nutrition and Dietetics.

Integrative Behavioral Health

A mental health problem is rarely an isolated issue. In fact, an estimated 70% of primary care physician visits involve a behavioral component. According to LifeStance Health psychologist Dr. Emily Mohr, a specialist in integrative behavioral health, “Whether it’s an issue related to stress or lifestyle behaviors and addiction, primary care doctors are seldom well-trained to treat them.”

Integrative behavioral health (IBH) brings professional disciplines together to collaborate as a team focusing on the best interest of the patient. “This coordination of patient-centered, whole-person care streamlines the care planning and treatment,” explained Dr. Mohr. Typically, the team also includes a navigator (usually a nurse) who guides the patient through the process, helping to schedule diagnostic tests and provider appointments.

Often, the team is comprised of primary care, psychology, psychiatry and sometimes social work and addiction medicine specialists. “It’s fluid, with additional providers joining the team as patient needs are identified, while others stop actively participating as patient issues resolve,” said Dr. Mohr.

“Key to the improved patient outcomes we’re seeing with IBH is the seamless communication channel among the providers and the patient,” said Dr. Mohr. “This approach has proven successful in other areas of healthcare for many years, and its time has come to help patients struggling with mental health issues.”

Dr. Norman Anderson of the American Psychological Association says his organization is developing awareness initiatives around the benefits of integrated behavioral health in the healthcare and public sectors. “We’re also advocating for financial benefits to help foster some of these integrated care teams.”