Population aging, the rise of chronic diseases, and the shortage of healthcare professionals are all part of the same problem. For years, they have been addressed as independent challenges, but a new analysis from the McKinsey Health Institute brings them together under a single conclusion: the current care model will hardly be able to absorb the demand of the coming decades without a profound transformation of primary care and, above all, of the population's health status.
The report, focused on the United States though with implications that can be extrapolated to other developed healthcare systems, estimates that the country has a deficit equivalent to 170 million primary care visits per year, a gap that leaves approximately 45 million people. without adequate coverage. Projections indicate that this imbalance will persist until 2050, even with the expected growth in the number of professionals.
This figure reflects a capacity problem, although the origin is much more complex. Care pressure is increasing because more people are living with conditions that require ongoing monitoring. Diabetes, obesity, cardiovascular diseases, cognitive decline, and mental health disorders account for a large portion of visits and healthcare spending. At the same time, the number of primary care physicians is growing at an insufficient rate, and professional burnout continues to hinder generational turnover.
McKinsey then poses a question that transcends the healthcare sphere: Is it more efficient to keep increasing the supply of care or to reduce demand by improving the health of the population?
The report's answer places prevention at the center of the economic equation.
The researchers simulate different scenarios for the coming decades. The first considers expanding the professional workforce and incorporating artificial intelligence to reduce administrative burden and increase clinical productivity. The second incorporates therapeutic innovations capable of modifying the progression of highly prevalent diseases, such as GLP-1 receptor agonists for obesity or new treatments for neurodegenerative pathologies and certain mental health disorders.
However, the scenario with the greatest structural impact starts from a much simpler hypothesis: a population that needs fewer visits because it has a better health status.
According to McKinsey's estimates, a 15% reduction in annual primary care demand would free up enough capacity to cover the care needs of approximately 30 million people, practically eliminating the deficit projected for mid-century. The model takes as a reference indicators from Nordic countries, where a lower disease burden reduces pressure on the healthcare system.
The conclusion changes how we interpret the role of wellness. Nutrition, physical exercise, metabolic control, sleep, and mental health are no longer analyzed solely from an individual perspective but are incorporated as variables capable of altering the economic sustainability of an entire healthcare system.
The report also identifies the major demand drivers. Nearly 70% of primary care visits correspond to three large patient groups: people with metabolic diseases, mental health disorders, and neurodegenerative diseases such as Alzheimer's and other dementias. All of them require ongoing monitoring, generate high consumption of healthcare resources, and concentrate a large part of current biomedical innovation lines.
Particularly significant is the growing weight of metabolic disorders. The expansion of obesity and type 2 diabetes has placed metabolic health among the strategic priorities of governments, insurers, and pharmaceutical companies. McKinsey estimates that widespread implementation of GLP-1-based treatments could reduce billions of dollars in hospitalizations and emergency visits, although it would also increase the primary care visits needed to monitor the treatment. Pharmacological innovation improves clinical outcomes but also forces a redesign of care organization.
Artificial intelligence appears in the report with an equally pragmatic approach. The goal is not to replace the physician but to reclaim clinical time. Automating documentation, authorizations, administrative follow-up, or patient communication would allow more resources to be dedicated to direct care and relieve some of the pressure on increasingly saturated clinics.
All of this paints a scenario that directly impacts the wellness industry. The sector has built much of its growth around well-being, performance, or longevity, while scientific evidence is beginning to support another, less visible dimension: its potential capacity to reduce care burden and healthcare costs if it can modify risk factors before they evolve into disease.
The question, therefore, is no longer whether prevention is beneficial for health. That premise has had sufficient scientific support for decades. The debate shifts to another dimension: which interventions generate real clinical benefit, which ones have enough evidence to be incorporated into healthcare systems, and which belong solely to the realm of wellness marketing.
This nuance will likely mark the evolution of the sector in the coming years. The growing pressure on public and private systems opens an unprecedented space for preventive solutions, provided they demonstrate efficacy, cost-effectiveness, and the ability to integrate into clinical practice.
More than a report on primary care, McKinsey presents a roadmap for the health economy. The availability of doctors will remain a determining factor, although the variable that will truly condition the system's sustainability will be another: the number of people who manage to reach those consultations with better baseline health.
