Why do older women show the highest rates of food addiction, while older men are more likely to meet criteria for alcohol and tobacco use disorder — and why does that gap flip when it comes to weight? In Episode 292, we sit down with Lucy Loch, a doctoral candidate in Psychology at the University of Michigan, to unpack her research on food addiction in older adults and what it reveals about decades of diet culture, marketing, and an under-screened generation.
Lucy studies the life course development of addictive-like eating — how early-life experiences and exposure to ultra-processed foods shape appetite, self-regulation, and long-term health outcomes. She's supported by the National Science Foundation Graduate Research Fellowship, works under Dr. Ashley Gearhardt at the University of Michigan, and her research has appeared in Addiction, Current Obesity Reports, and Physiology & Behavior.
In this conversation, we dig into her recent study from the National Poll on Healthy Aging: why older women meet criteria for food addiction at higher rates than older men, why overweight men in the study were 19x more likely to meet criteria (compared to 11x for women), what a small but striking finding on underweight older adults might mean, and why isolation and food addiction may feed each other in a bidirectional loop. We also talk about why food addiction is so often invisible in geriatric medicine, what it would take to get it screened for the way depression and falls already are, and what decades of "low-fat," heavily marketed diet products may have set up for the women who trusted them.
This one is for anyone who works with older adults, anyone who's ever been told "just eat healthier," and anyone who's still unlearning the idea that this comes down to willpower.
About our guest:
Lucy Loch is a doctoral candidate in the Department of Psychology at the University of Michigan. Her research focuses on the life course development of addictive-like eating, examining how early life experiences and exposure to ultra-processed foods influence appetite, self-regulation, and risk for later-life health outcomes. She is supported by the National Science Foundation Graduate Research Fellowship and works to uncover why certain foods and life experiences may make some individuals more susceptible to overeating. Her work has appeared in journals including Addiction, Current Obesity Reports, and Physiology & Behavior.
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