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Anthropology
Food insecurity of fatness: from evolutionary ecology to social science
Jul 8, 2019
This podcast explores the evolutionary, biological, and social science questions related to food insecurity and fatness. It debunks the 'No Breaks Hypothesis', discusses the mismatch between evolutionary motivations and social science understanding of obesity, and explores the correlation between food insecurity and obesity. It also explores the adaptive decision-making process of how much to eat for survival, presents an experiment on starlings' body mass regulation, and discusses the impact of food insecurity on foraging behavior in birds.
50:53
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Quick takeaways
- Evolutionary thinking challenges the belief that humans have no limits on consuming sugar and fat, as cultural practices and appetite limiters for sugar and fat exist.
- Food insecurity and obesity coexist, with studies showing higher rates of obesity among lower-income populations and the importance of social factors and economic disparities.
Deep dives
The Evolutionary Perspective on Human Obesity
Evolutionary thinking challenges the idea that humans have no limits on consuming sugar and fat, leading to obesity. Evidence shows that there are appetite limiters for sugar and fat, as seen in cultural practices like pre-marriage feeding rituals. The no-break hypothesis does not take into account our body's homeostatic mechanisms that regulate caloric intake. People have the ability to maintain a stable weight, even with varying levels of physical activity. The idea that humans lack evolved mechanisms to limit sugar and fat intake is flawed.
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Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode