Make America Healthy Again: RFK Jr. Announces First Decline in US Obesity Rates in Decades

Health and Human Services Secretary Robert F. Kennedy Jr. announced this week that obesity rates in the United States have started falling for the first time in decades, crediting changes made since President Trump returned to office for what he described as a meaningful shift in the nation’s chronic disease trajectory.

Speaking at an event hosted by the America First Policy Institute in North Carolina, Kennedy told the audience that obesity rates have dropped by 2.5 percent since Trump took office, a figure he called the first measurable drop the country has seen in roughly half a century.

He has used similar language in other recent appearances, at times citing a 40 year window rather than 50, but the core claim that the long upward march of American obesity has finally reversed has remained consistent.

Kennedy framed the announcement within his broader argument that obesity sits at the root of the nation’s chronic disease burden.

He told attendees that obesity drives approximately 80 percent of chronic disease in the United States, tying the new figures directly to his Make America Healthy Again agenda’s emphasis on nutrition, food quality, and reducing reliance on processed foods.

The secretary has repeatedly pointed to dropping obesity and diabetes rates as the clearest measure of success for his nutrition focused policy agenda.

In earlier remarks to agricultural trade press, Kennedy said that for the first time in 40 years, obesity rates were down by nearly 2 percent, a result he called a huge win for the administration’s broader health strategy.

Independent federal data lends some support to the idea that the long term trend may be bending, even if the precise figures Kennedy has cited differ somewhat from official government statistics.

The Centers for Disease Control and Prevention’s National Center for Health Statistics released updated estimates earlier this year showing that adult obesity prevalence stood at 40.3 percent during the August 2021 to August 2023 survey period, a modest decline from the 42.8 percent recorded in the 2017 to 2018 survey cycle.

That CDC data, drawn from the National Health and Nutrition Examination Survey, represented the first meaningful pause in a streak of annual increases in adult obesity that had continued without interruption since 2011.

Federal researchers were careful to note that the change from the prior survey period was not large enough to be considered statistically significant on its own, even as it broke a long upward trend.

The picture for the country’s youngest Americans points in the opposite direction.

The same round of CDC reports found that childhood and adolescent obesity actually reached a record high, with 21.1 percent of children and teens ages 2 to 19 classified as obese during the 2021 to 2023 survey window, up from 19.3 percent in 2017 to 2018.

Severe obesity among children also climbed during that period.

A separate analysis released by the nonprofit Trust for America’s Health, built on the CDC’s 2024 Behavioral Risk Factor Surveillance System data, found that for the first time in more than a decade, the number of states with adult obesity rates of 35 percent or higher had declined.

The group’s president called the finding encouraging but cautioned that it was too soon to call it a firm trend, particularly given recent federal funding cuts and staff reductions affecting some public health programs.

An HHS spokesman responded to that report by saying the administration was encouraged by data showing progress in the fight against obesity, adding that the department is working to restructure public health programs to cut waste and redirect resources toward genuine prevention efforts rather than what he characterized as bureaucratic overhead.

Public health researchers have offered several possible explanations for the apparent leveling off and modest decline in adult obesity rates.

The growing popularity of GLP-1 class weight loss medications such as Wegovy and Zepbound has been cited as one likely contributor, since wider real-world use of those drugs could be beginning to show up in national survey data for the first time.

Expanded nutrition assistance programs during the pandemic years have also been floated as a possible factor.

Kennedy’s nutrition agenda has centered on a sweeping rewrite of federal dietary guidance.

He has said his department assembled a panel of roughly a dozen nutrition experts from leading universities who spent eleven months producing a streamlined, peer-reviewed dietary guide intended to replace older federal recommendations.

Kennedy has said the new guidance restructures the traditional food pyramid to elevate fruits, vegetables, and proteins, arguing it will help reshape the country’s broader dietary culture over time.

The secretary has also tied his anti-obesity push to national security and military readiness concerns.

Citing Pentagon recruitment data, Kennedy has said that 77 percent of young Americans cannot currently qualify for military service without a waiver, attributing a significant share of that disqualification rate to diet-related health problems.

He has argued that reversing childhood obesity trends is essential to maintaining a viable pool of military-age recruits.

That recruitment argument has drawn some pushback from critics, who note that the Pentagon’s own 2020 Qualified Military Available study found that obesity specifically accounted for only about 11 percent of disqualifications, with the bulk of the 77 percent ineligibility figure tied to other medical, mental health, drug related, or educational factors rather than weight alone.

Other critics have also questioned whether Kennedy’s broader nostalgic framing of mid-20th century American health holds up under scrutiny.

Public health historians note that life expectancy in 1960 was nearly a decade shorter than it is today and that chronic diseases such as heart disease, cancer, and stroke were already responsible for roughly two out of every three American deaths by the early 1960s, complicating Kennedy’s frequent suggestion that earlier generations were uniformly healthier.

Even so, Kennedy’s allies argue that today’s chronic disease landscape, dominated by ultra-processed foods, sedentary lifestyles, and widespread reliance on pharmaceuticals, represents a genuinely different and more entrenched problem than anything the country faced decades ago, lending urgency to the administration’s nutrition-focused agenda regardless of how earlier eras are remembered.

Roughly two in five American adults remain classified as obese under current body mass index standards, and federal health officials have repeatedly noted that the country remains well above the Healthy People 2030 target of reducing adult obesity prevalence to 36 percent.

Even with a modest recent decline, obesity-related conditions, including type 2 diabetes, hypertension, heart disease, and certain cancers, continue to weigh heavily on the nation’s health care system.