Ultra-Processed Foods & Holiday Treats | CBC Listen

by Grace Chen

BOSTON, December 22, 2025 – A growing body of research suggests that what we *think* is simply overeating isn’t always the full story. A new study indicates ultra-processed foods-think frozen meals, sugary drinks, and packaged snacks-can disrupt our bodies in ways that calories alone don’t explain, possibly leading to overconsumption and health problems.

The Hidden Impact of Ultra-Processed Foods

New research reveals these foods affect our brains and bodies differently than minimally processed options.

  • Ultra-processed foods make up over half of the average American diet.
  • These foods are engineered to be hyper-palatable, driving overconsumption.
  • Recent studies show they can alter gut bacteria and brain activity related to reward.
  • Reducing intake of these foods may improve health outcomes, even without weight loss.

Q: what exactly *are* ultra-processed foods? A: These are industrial formulations made mostly from substances extracted from foods-additives, colorings, emulsifiers, and other ingredients-rather than whole foods. They’re frequently enough high in sugar, fat, and salt, and designed for convenience and long shelf life.

Beyond Calories: How Processing Changes Food

For years, the focus has been on calories in, calories out. But the latest research suggests that *how* those calories are packaged matters immensely. A study published recently found participants on an ultra-processed diet consumed roughly 500 more calories per day than those on a minimally processed diet, even when meals were matched for macronutrients. The difference wasn’t just quantity; brain scans revealed altered activity in areas associated with reward and craving when participants ate ultra-processed foods.

The study participants were fully monitored in a metabolic ward, meaning researchers controlled everything they ate

Do you think? Are ultra-processed foods a major contributor to the obesity epidemic, or is it simply a matter of personal duty? Share your thoughts in the comments below.



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