Skeptics with a K

Episode #449

January 29, 2026

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  • The media coverage surrounding a study linking plant-based milk consumption to depression is highly misleading, as the original research focused only on the benefits of semi-skimmed cow's milk and did not specifically analyze oat milk or the general dangers of dairy alternatives. 
  • The study analyzed in *Skeptics with a K*, Episode #449, suffers from significant methodological flaws, including relying on self-reported dietary data from 2006-2010 and excluding participants who already exhibited depression or anxiety at baseline. 
  • Seasonal media narratives, such as 'Blue Monday' and New Year's resolution failures, persist despite being widely recognized as nonsense, often being replaced by slightly different, yet equally manipulative, marketing hooks. 

Segments

January Media Narratives Debunked
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(00:01:37)
  • Key Takeaway: Media outlets perpetuate the ‘Blue Monday’ narrative annually, often shifting from promoting the concept to criticizing it for clicks, demonstrating how marketing creates and then debunks its own false problems.
  • Summary: The date January 29th, 2026, is noted as the time of this episode of Skeptics with a K. Media outlets continue to run stories about ‘Blue Monday’ and the failure of New Year’s resolutions, even while simultaneously publishing articles debunking the very concepts they helped popularize. Brands continue to capitalize on the general feeling of January depression even after the specific ‘Blue Monday’ hook becomes recognized as nonsense.
Critique of Veganuary Timing
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(00:07:02)
  • Key Takeaway: January is a poor month for ambitious, large-scale dietary changes like adopting veganism due to the cold, dark weather making restrictive eating less enjoyable.
  • Summary: The annual ‘Veganuary’ campaign is criticized because January’s miserable weather makes it difficult to sustain restrictive diets, potentially limiting joy derived from food and drink. One host notes that they chose February for a personal dietary experiment because its shorter duration offered a clearer endpoint for evaluation. Reducing meat and dairy intake is acknowledged as environmentally beneficial, but the timing of the campaign is questioned.
Analyzing Milk and Depression Study
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(00:09:58)
  • Key Takeaway: Headlines claiming plant-based milk drinkers are more depressed are based on a flawed Chinese study that only compared semi-skimmed cow’s milk consumers against a combined ‘other milk’ category, which included soy milk.
  • Summary: The study, published in Frontiers in Nutrition, analyzed UK Biobank data to compare mental health scores based on reported milk consumption from 2006-2010. The researchers specifically excluded participants who already had depression or anxiety at baseline, potentially skewing the remaining cohort. The study’s conclusion focused on the protective effect of semi-skimmed milk’s fat profile, not on the dangers of dairy alternatives, which the media misrepresented.
Demographic Confounders in Milk Study
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(00:34:49)
  • Key Takeaway: The observed association between plant-based milk consumption and depression is likely confounded by pre-existing lifestyle differences, such as health consciousness, smoking habits, and awareness of global crises.
  • Summary: Demographic analysis of the study data showed that ‘other milk’ drinkers (which included soy) were significantly more likely to be non-smokers, exercise more, and eat more vegetables than full-cream milk drinkers. The study’s 15-year follow-up window means that changes in societal stigma around mental health reporting could also influence the 2022 anxiety/depression scores. The researchers failed to account for the fact that people choosing alternatives are often already more health-conscious or environmentally concerned, factors that correlate with mental well-being.
Host Updates and Local Events
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(00:42:27)
  • Key Takeaway: Mike Hall visited Bristol, noting the city’s confusing one-way systems, while Alice celebrated Burns Night by eating haggis and attending a Derby football match.
  • Summary: Mike Hall found driving in Bristol challenging due to its extensive one-way systems and noted the M32 motorway’s unusual 40 mph speed limit and lack of a hard shoulder. Alice celebrated Burns Night on January 25th, enjoying haggis, which she describes as tasting like peppery sausage with a grainy texture from pearl barley. Liverpool Skeptics in the Pub has an upcoming social event featuring Dr. Duncan at St. John’s, which Mike will miss due to travel to The Hague for grant application review.