#Obesity

A groundbreaking international study has shattered a long-held tenet of public health: that simply eating fewer calories and exercising more is the surest route to weight control. Instead, the research points to ultra-processed foods (UPFs) — industrial formulations containing five or more ingredients — as powerful, independent drivers of the global obesity epidemic, casting doubt on the decades-old mantra of ‘calories in, calories out’ as the full story behind weight gain. The findings, published this week in the Proceedings of the National Academy of Sciences (PNAS) and widely reported in reputable outlets such as the Washington Post, are sparking urgent debates among health experts and raising vital questions for Thailand’s food culture and public health strategy [Washington Post][PNAS article summary].

A new spotlight on how our meal frequency affects health has ignited debate among nutritionists and the public, following recently published research and expert commentary. The question—does eating more than three meals a day nurture or hinder our well-being?—is especially pertinent in Thailand, where traditional eating habits sometimes differ from Western norms.

Nutrition researchers and physicians have been exploring whether consuming more than three meals a day—sometimes in the form of frequent, small meals or “grazing”—delivers true health benefits or unintentionally undermines metabolic, digestive, or weight outcomes. The issue is complex, and the implications for Thai society—where bustling street food culture often promotes frequent snacking—are profound.

A major international study rethinks obesity by showing that excess calorie intake, not a lack of physical activity, primarily drives obesity in developed nations, including the United States. Published insights from the Proceedings of the National Academy of Sciences challenge decades of public health messaging that blamed sedentary lifestyles. The research points to the modern food environment as the real culprit behind the obesity epidemic.

Obesity remains a global health priority, including in Thailand, where the World Health Organization highlights risks such as Type 2 diabetes and heart disease. The study’s message shifts focus from inactivity to diet quality, suggesting what people eat matters more than how much they move.

A major international study reshapes how we understand obesity. The research shows that diet—especially ultra-processed foods—is the dominant factor in rising obesity rates worldwide, challenging the idea that sedentary lifestyles alone drive the trend. The findings highlight food quality and composition as key contributors across diverse populations, including urban Thai communities.

Data were gathered from more than 4,000 adults across 34 countries, using precise metabolic measurements to assess daily energy expenditure. After adjusting for body size, researchers found little difference in total daily calories burned between people in rich, industrialized nations and those leading physically demanding traditional lifestyles. In short, active workers in some settings burn roughly the same number of calories as office workers in wealthier countries when body mass is considered.

New global research shifts the focus from physical activity as the main driver of obesity to diet quality, highlighting the growing role of ultra-processed foods. For Thailand and other developing economies facing rising obesity, the findings advocate policy reform, nutrition education, and mindful everyday eating in homes and schools.

The study compares energy use in more than 4,000 adults across 34 settings, from hunter-gatherer communities in Africa to corporate environments in Europe. Using the doubly labeled water method, researchers measured daily energy expenditure linked to basic biology and activity. After accounting for body size, the results show similar calorie burn in industrialized societies and subsistence communities, challenging the idea that wealthier nations are inherently more sedentary.

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 major international study is upending deeply held beliefs about obesity, concluding that excess calorie consumption—not a lack of physical activity—is the primary cause of the obesity epidemic in the United States and other developed nations. The findings, published in the Proceedings of the National Academy of Sciences (PNAS) this week, suggest that decades of public health campaigns blaming sedentary behavior for rising obesity rates may be missing the real culprit: modern diets.

A sweeping international study published this week in the Proceedings of the National Academy of Sciences (PNAS) is challenging one of the most entrenched beliefs about obesity: that sedentary lifestyles in wealthy nations are the main culprit behind rising rates of overweight and obesity. Instead, the study points a much sharper spotlight at diet—specifically, the prevalence of ultra-processed foods—as the major driver of the global obesity crisis. As Thailand and other middle-income nations grapple with rising rates of obesity, these findings hold urgent implications for public health policies, education campaigns, and everyday choices at the dining table.

A new international study signals that low sexual activity, belly fat, and depressive symptoms may together raise the risk of early death. The research tracked nearly 5,000 adults over 15 years and emphasizes practical implications for health screening and preventive care in Thailand as well as beyond.

Researchers followed adults aged 20 to 59 who reported infrequent sexual activity in the prior year. They used a precise waist-related fat index and a standard questionnaire to assess depressive symptoms. Over the follow-up period, 215 participants died. Abdominal obesity stood out as the strongest death predictor, with high body shape indices nearly doubling risk. Depression also raised risk significantly, by about 86%. Notably, individuals with both high abdominal fat and high depressive symptoms—and low sexual activity—faced almost four times the death risk compared with those without these factors. Data drawn from national records supported these conclusions, and the researchers estimated that about half of deaths in this high-risk group could be linked to the combined effect of fat and mood.

A groundbreaking new study suggests a powerful interaction between low sexual activity, abdominal fat, and depressive symptoms could sharply raise the risk of early death—a finding with practical implications for health screening and preventive care worldwide, including Thailand. Published in the Journal of Affective Disorders, the study traced nearly 5,000 adults in the United States over 15 years. Researchers found that adults who reported sexual activity fewer than 12 times per year and who also had extra abdominal fat or scored high for depression faced significantly higher mortality. Most concerning, when both risk factors—wide waistlines and depressed mood—were present alongside low sexual activity, the chance of dying was almost quadrupled compared to those with neither risk factor (PsyPost).

A growing body of scientific evidence shows that exercise alone may do far less for weight loss than once believed. Recent studies, as discussed in Psychology Today, confirm that while physical activity confers significant health benefits, its direct effect on body mass index (BMI) is minimal—especially compared to dietary changes. For many Thais striving to lose weight, this revelation upends traditional advice and encourages a fresh, evidence-based approach to managing obesity and related health concerns.

A new wave of scientific studies has challenged the widespread belief that regular exercise is the primary driver for weight loss, particularly with respect to reducing Body Mass Index (BMI). According to recent research summarized by Psychology Today, while exercise brings numerous health benefits, its direct impact on BMI is far less substantial than most people—and many fitness advertisements—would suggest psychologytoday.com.

For many Thais and others worldwide striving to manage weight and maintain a healthy lifestyle, the findings are significant. They counter the commonly held view that hours spent in the gym or jogging local parks will necessarily translate into notable weight loss. This misconception has often guided public health campaigns and individual choices, sometimes at the expense of more effective methods.

New scientific findings are shifting focus from exercise alone to diet in weight management. For Thais aiming to control weight, hours in the gym may not reduce BMI without dietary changes.

Large studies confirm that physical activity benefits heart health, mood, and muscle tone. However, when it comes to BMI, dietary adjustments often drive more substantial changes. A landmark study in the British Journal of Sports Medicine warned that “you cannot outrun a bad diet,” highlighting how calorie intake directly influences weight gain or loss.

A new review by US-based clinical dietitians spotlights spinach as a leading dietary choice to reduce visceral fat, the deep belly fat linked to higher risks of diabetes, heart disease, and certain cancers. For Thai audiences, this offers practical guidance as obesity-related illnesses rise in the region. Researchers emphasize that combining healthy eating with lifestyle changes can address this silent risk affecting millions across Southeast Asia, including Thailand.

Visceral fat sits around internal organs and is more dangerous than surface fat. As Thailand faces an aging population and urban living that encourages sedentary behavior and high-calorie diets, medical experts warn about escalating metabolic syndrome, type 2 diabetes, and cardiovascular disease. Understanding and preventing visceral fat has become a public health priority for Thai families.

A recent review by US-based registered dietitians places spinach at the forefront of dietary strategies to reduce visceral fat, the deep belly fat that increases risk for diabetes, heart disease, and certain cancers (EatingWell). This finding offers practical guidance for Thai readers invested in combating chronic diseases closely tied to rising obesity rates. The review echoes growing global evidence that a combination of healthy eating habits and lifestyle changes can help tackle a silent health risk affecting millions across Southeast Asia—including Thailand.

New research highlighted during World Infertility Awareness Month and reported by mainstream outlets has shed light on five modifiable lifestyle factors that may quietly affect men’s reproductive health. As Thai families increasingly seek answers to fertility challenges, these findings offer practical guidance for personal wellness and future family planning.

While infertility discussions often spotlight women, experts emphasize that male factors contribute to roughly one third of global cases. Sperm quantity, quality, and hormone regulation can be influenced by daily choices. With nearly 186 million people affected by infertility worldwide and a substantial share related to male health, understanding these risks remains urgent. Data from leading researchers suggests obesity, smoking, poor diet, environmental exposures, and stress are key drivers of compromised fertility.

Emerging research findings, highlighted during World Infertility Awareness Month and recently reported by ABC News, have thrust male infertility into the public spotlight, identifying five modifiable lifestyle factors that could be quietly undermining men’s reproductive health. As families across Thailand increasingly seek answers to fertility challenges, these latest insights carry crucial implications both for personal wellness and for future generations.

Although infertility discussions often focus on women, specialists estimate that male factors significantly contribute to around a third of all cases worldwide (ABC News). “When we think about fertility, there’s a lot of focus placed on females,” noted an ABC medical contributor. “But male issues can include problems with sperm volume or quality, congenital obstructions, infections, and various underlying medical conditions.” With nearly 186 million people globally affected by infertility—half of whom face male-related issues—the urgency of understanding male-specific risks has never been greater (Tesarik, 2025; Amoah et al., 2025; WHO 2025).

New research changes how obesity is understood for Thai health planning. A study published on June 26, 2025 in the Annals of Family Medicine finds that body fat percentage (BF%) more accurately predicts both all-cause and cardiovascular mortality than body mass index (BMI), especially among adults aged 20 to 49. The findings could influence how Thai clinicians screen for health risks across the country.

For decades, BMI has been the standard metric in Thai hospitals and clinics for obesity screenings, workplace wellness programs, and national health surveys. BMI relies on height and weight and does not distinguish fat from muscle. The latest study shows BF% measured with bioelectrical impedance analysis (BIA) provides a clearer picture of long-term mortality risk and is increasingly accessible in primary care.

A groundbreaking study published on June 26, 2025 in the Annals of Family Medicine has revealed that body fat percentage (BF%) is a significantly better predictor of both all-cause and cardiovascular mortality than the widely used body mass index (BMI), particularly in adults aged 20 to 49. This major shift in understanding could have profound implications for how Thai clinicians and public health officials assess obesity and related health risks across the country.

Nearly a third of American adults eat fast food on any given day, but new data from the Centers for Disease Control and Prevention (CDC) reveals their overall reliance on fast food is gradually decreasing. According to the report, “Fast-Food Consumption Among Adults and Children in the United States, 2021–2023,” just over 30% of U.S. adults aged 20 and above indulge in fast food daily, with 1 in 5 Americans getting at least a quarter of their daily calories from these meals. The data, which comes from the National Health and Nutrition Examination Survey conducted from August 2021 to August 2023, also points to shifting patterns among youth, suggesting evolving attitudes towards convenience food in American society (Deseret News).

A new CDC study shows that fast food remains a staple for many Americans, but the overall reliance is slowly easing. The report, conducted through the National Health and Nutrition Examination Survey from 2021 to 2023, found that just over 30% of adults eat fast food daily, and about one in five get at least a quarter of their daily calories from these meals. The findings also indicate shifting attitudes among youth toward convenience foods, underscoring evolving dietary choices in the United States.

A global review of nearly 100 clinical trials suggests alternate-day fasting could offer slightly better improvements in weight and cholesterol than intermittent fasting. The findings come as Thailand faces rising rates of metabolic syndrome and obesity, highlighting new options—and important caveats—for Thai readers exploring dietary strategies.

Globally, 2.5 billion adults are overweight and more than 890 million live with obesity, according to the World Health Organization. Thailand mirrors this trend, with national health data showing a steady rise in overweight and obesity in recent years. These patterns are closely linked to higher rates of high blood pressure, type 2 diabetes, and cardiovascular disease, affecting families and the health system alike.

A new global analysis suggests alternate-day fasting may offer slightly greater benefits for weight and cholesterol management than intermittent fasting, according to evidence from nearly 100 clinical trials. As interest in dietary strategies grows in Thailand, especially amidst rising rates of metabolic syndrome and obesity, this research highlights fresh possibilities—and caveats—for Thai readers considering alternative nutritional approaches.

With 2.5 billion adults worldwide classed as overweight and more than 890 million living with obesity according to the World Health Organization (who.int), weight management is an increasingly urgent public health issue. Thailand is not exempt, with national surveys showing the prevalence of overweight and obesity rising steadily in recent years (healthdata.org). These trends are tightly linked to escalating rates of high blood pressure, type 2 diabetes, and cardiovascular disease, deeply affecting Thai families and healthcare systems alike.

A wave of recent research is renewing the debate over whether diet soda can beat water for some people seeking to lose weight. While some studies report greater weight loss with artificially sweetened beverages in structured programs, experts urge caution and emphasize broader dietary patterns. The discussion matters for Thailand, where rising obesity and metabolic disease pose public health challenges.

The question is not just a social media talking point. For millions of Thais, the choice between diet drinks and plain water intersects with rising obesity, diabetes, and heart disease. Public health officials in Thailand have already introduced sugar taxes and promoted low-calorie options, underscoring the need for clear consumer guidance in a market saturated with both regular and diet beverages.