Panel
Waistlines of the World: An Update from the War on Obesity
Milken InstituteCristina Alesci, Patrick Carroll, William Dietz, Debra Eschmeyer, Jonathan Fielding, David Heber, Bill Dietz
- Adult obesity rates are projected to continue rising while childhood rates have plateaued for a decade, with strategies focusing on the 20- to 39-year-old parent demographic deemed critical to simultaneously curb both trends and prevent a reversion of 6- to 11-year-old statistics to current adult levels.
- Physical activity retention in standard gym facilities is predicted to drop to 7% of original participants within one year, whereas CrossFit and cycling facilities may demonstrate slightly better retention; resistance training performed 30 minutes to an hour after protein intake is expected to increase resting energy expenditure by 140 calories per 10 pounds of lean muscle, with most calorie burning occurring post-workout during protein synthesis.
- Medical trajectories suggest Type 2 diabetes may begin developing in children as young as 10 or 11 after a decade of pancreatic stress, potentially leading to diagnosis by age 25, while pre-diabetes cases in China could reach 500 million and fatty liver disease may become the third leading cause of liver transplants in 50% of obese individuals.
- Future dietary guidelines in 2020 and beyond are expected to integrate sustainability concerns, shift focus toward the "center of the plate" to reduce meat dominance, and address that 50% of the American diet could come from sugar if trends continue, with only 2% of current marketing spend promoting fruits and vegetables.
- Social determinants of health, including low income, joblessness, safety, and neighborhood environment, are identified as primary drivers that will likely keep obesity rates high in disadvantaged areas while remaining low in affluent communities, necessitating interventions that address food literacy, cooking skills, and access to healthy foods in remote areas.
- Sugar-sweetened beverage taxes implemented in cities like Mexico, Berkeley, and proposed in Philadelphia are projected to reduce consumption by approximately 12% but may cause sales to shift to surrounding unregulated communities, a phenomenon described as "reverse contraband," while funds could be directed toward early care and education centers.
- Obesity stigma is predicted to remain a significant barrier, potentially driving eating disorders in women and causing stress-induced overeating, prompting calls for "people-first" language and interventions that leverage social influence among friends rather than spouses or family members.
- Marketing and policy strategies may increasingly utilize celebrity endorsements on platforms like Snapchat and Facebook to target students, though high schoolers are viewed as less amenable to diet changes than early childhood education groups, and future guidelines must contend with political influence that dilutes recommendations regarding the "meat grinder" of industry pressure.
- Technology and digital platforms are expected to play a dual role in facilitating person-to-person contact for ongoing care and monitoring, while also presenting challenges through the inverse relationship between screen time and physical activity, with future guidelines potentially requiring limits on usage to mitigate advertising-driven food consumption.
- Interventions will likely need to prioritize "front lines" populations with dual burdens of hunger and obesity, such as the 46 million Americans on SNAP including 15 million children, by focusing on pre-birth and early childhood health via breastfeeding and WIC counseling to prevent long-term metabolic consequences.
- Resistance exercise is highlighted as essential for women's bone health and muscle maintenance, particularly during menopause, and future research may de-emphasize cardio in favor of high-intensity interval training or resistance work performed after protein intake to maximize metabolic benefits.
- Current health economics suggest that lower spending on food as a percentage of income correlates with higher medical costs, urging a policy reframing of food costs versus healthcare costs, while 50% of obesity clinic patients may exhibit sugar addiction requiring treatment models similar to those for smoking or gambling.