#FoodPolicy

A groundbreaking international study has toppled one of the most persistent beliefs about obesity: the idea that sedentary lifestyles in wealthy countries are chiefly to blame for the global epidemic of excess weight. Instead, new research published this week in the prestigious Proceedings of the National Academy of Sciences (PNAS) points squarely at what we eat—particularly the prevalence of ultra-processed foods—as the dominant cause of rising obesity rates around the world (Washington Post).

A groundbreaking new study tracking over 540,000 adults for nearly 30 years has ignited alarm across the global health community, revealing a significant link between diets high in ultra-processed foods (UPFs) and an increased risk of early death. Published in July 2025 and widely cited by international health experts, the research found that participants consuming the most ultra-processed foods had about a 10% higher risk of dying early, compared to those with the lowest consumption levels. With ultra-processed foods now a staple in many Thai diets, these findings carry urgent implications for national health and daily food choices.

The United States is poised to unveil updated Dietary Guidelines for Americans as soon as this June, a key development closely tracked by health professionals, schools, and policymakers worldwide, including in Thailand. According to recent reports from Reuters and other reputable outlets, these guidelines—which shape food policy for institutions, inform the design of school lunch programs, and influence professional nutrition advice globally—are expected to be released after an extensive scientific review process. While the final version has yet to be published, leaked details suggest that the new guidance may emphasize increased plant-based food consumption, updated recommendations for protein sources, and stricter limits on processed foods and added sugars. This update is part of a five-year revision cycle aimed at reflecting the latest nutrition science and the shifting health needs of populations (MSN report; Devdiscourse).

A 30-year study involving more than 47,000 women has found that eating a diet rich in fiber and high-quality carbohydrates, such as whole grains, fruits, vegetables, and legumes, dramatically increases the chance of healthy aging, according to research published in JAMA Network Open on May 16, 2025 (jamanetwork.com). The findings offer new hope for preventing chronic illnesses and maintaining physical and cognitive function as Thailand—and much of Asia—faces a rapidly aging population.

A recent US report reveals that ultra-processed foods now account for 60% of American diets, raising urgent questions about the health costs of convenience and what this trend may signal for Thai consumers (WRAL). As Thailand’s urban lifestyles evolve and Western-style diets gain popularity, Thai health experts warn the nation may be following a similar—and troubling—trajectory.

Ultra-processed foods, often packaged for convenience, include items like sweetened breakfast cereals, instant noodles, reconstituted meat products, and sugary drinks. These foods are typically high in refined sugars, unhealthy fats, salt, and artificial additives, while being low in fiber, vitamins, and minerals (Harvard T.H. Chan School of Public Health). The sheer scale observed in the US—where more than half of daily caloric intake comes from such products—has serious implications for public health: studies consistently link diets high in ultra-processed foods to increased rates of obesity, diabetes, cardiovascular disease, and even some cancers (BMJ).

Despite growing public awareness and repeated government campaigns to reduce added sugar consumption, recent research indicates that people are still consuming far more “free sugars” than they realize—often due to hidden sugars lurking in everyday, seemingly healthy foods. This week, new policy action in the UK has broadened the so-called “sugar tax” to include pre-packaged milkshakes and coffees exceeding 5g of sugar per 100ml, a move aimed directly at curbing the widespread problem of undetected sugars in typical diets (The Times). For Thai families, who are increasingly exposed to Western-style processed foods and beverages, this global development shines a spotlight on the urgent need for local consumers to scrutinize what’s on their plates and in their cups.

A new wave of scientific concern is sweeping the globe after researchers found a strong association between consuming ultra-processed foods and a shortened lifespan, according to a recent study highlighted in Prevention magazine. The findings, reported earlier this year, reinforce mounting evidence that diets high in heavily processed foods—such as instant noodles, packaged snacks, sweetened beverages, and ready-to-eat meals—could be taking tangible years off people’s lives, raising urgent public health questions for Thailand and beyond.

Chile’s bold efforts to curb childhood junk food consumption have sparked international attention, prompting the question: if Chile can do it, why can’t the UK—or, indeed, Thailand? The South American nation’s sweeping package of regulations, focusing on marketing and labeling, has spurred a dramatic decline in unhealthy snack intake by children. This development has brought fresh hope to public health officials worldwide grappling with rising obesity rates among the youth.

A major new study spanning 101 countries has revealed that adults who consume a diet rich in plant-based proteins tend to live longer, while animal proteins remain crucial during early life. Published in Nature Communications, the international research provides some of the most comprehensive evidence yet linking dietary protein sources to lifespan, with possible lessons for Thailand’s evolving food landscape and health policies Nature Communications.

Across the globe, diets higher in plant protein were associated with significantly improved adult survivorship and overall life expectancy, especially when compared to diets where most protein comes from animal sources. Notably, the opposite effect was found among young children—animal-derived proteins offered unique survival benefits in the first years of life, likely due to bioavailable nutrients critical for development.

A wave of new research underscores a compelling message for public health: cutting out ultra-processed foods may significantly reduce the risk of developing cancer, according to leading medical professionals. Recent coverage in the UK-based GetSurrey highlighted doctors’ warnings that a single change in our diets—drastically reducing consumption of ultra-processed foods—could be one of the most effective ways to lower the likelihood of cancer onset across the population [source].

This news comes at a crucial juncture for Thai readers, as the adoption of Westernized diets heavy in processed foods accelerates in urban communities. Against a backdrop of rising cancer rates both in Thailand and globally, the public health implications of dietary choices have never been more relevant.

For decades, the nutrition spotlight has shone on protein—essential for muscle building and widely marketed as the hero of health. But a wave of new research and expert commentary is propelling dietary fiber into the foreground, suggesting that many people should prioritize fiber as much—or even more—than protein for overall well-being. This shift carries crucial lessons for Thai diets dominated by white rice, noodles, and increasingly processed foods, underscoring a potential public health opportunity with national significance.

A major rift in U.S. health research has surfaced with the early retirement of Dr. Kevin Hall, a renowned scientist from the U.S. National Institutes of Health (NIH), who has publicly cited censorship and recent political interference as the driving force behind his departure. Dr. Hall’s resignation has sent shockwaves through the global nutrition science community, reigniting concerns about the politicization of scientific research—a development with far-reaching implications for how countries like Thailand address the growing crises of obesity, Type 2 diabetes, and ultraprocessed food consumption.

France’s top food safety agency, ANSES (Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail), has sent shockwaves through the international nutrition community with its latest recommendation: soy-based foods should be banned from all public mass catering, including schools, hospitals, and care homes. This call, issued in March 2025, has ignited global debate over the safety of soy products—a topic relevant to Thailand as plant-based menus become increasingly popular in schools and health-conscious households.