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'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
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Detecting iodine deficiency risks from dietary transitions using shopping data.

Roberto Mansilla1, Gavin Long1, Simon Welham2

  • 1N/LAB, Nottingham University Business School, Jubilee Campus, University of Nottingham, Nottingham, UK.

Scientific Reports
|January 10, 2024
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Summary
This summary is machine-generated.

Switching to plant-based milk alternatives may lead to significant nutrient deficiencies, particularly in iodine, calcium, and vitamin B12. This dietary shift poses a potential public health concern if not addressed.

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Area of Science:

  • Nutritional Science
  • Public Health
  • Consumer Behavior

Background:

  • Plant-based diets are increasingly popular, but their long-term health effects and nutritional impacts are not well understood.
  • Current methods for assessing dietary changes are costly and burdensome, limiting large-scale studies.
  • Understanding nutrient intake shifts is crucial for public health, especially concerning micronutrients like iodine.

Purpose of the Study:

  • To investigate the nutritional consequences of replacing cow's milk with plant-based alternatives.
  • To assess changes in iodine, calcium, and vitamin B12 intake among consumers switching milk products.
  • To identify potential public health risks associated with widespread dietary transitions.

Main Methods:

  • Utilized anonymized loyalty card data from 10,626 frequent shoppers at Co-op Food, UK.
  • Focused on customers who transitioned from dairy milk to alternative milk products.
  • Estimated weekly nutrient intake by analyzing product nutritional information before and after the dietary switch.

Main Results:

  • 83% of consumers switching to alternative milk experienced reduced intake of iodine (44%), calcium (30%), and vitamin B12 (39%).
  • Over half (57%) of converters reduced their iodine purchase by more than 50%.
  • Nutrient declines were more pronounced in individuals switching from dairy and meat products.

Conclusions:

  • Dietary transitions, such as substituting dairy milk with alternatives, can lead to significant nutritional deficiencies.
  • Iodine deficiency is a key concern, potentially representing a major public health issue, especially in regions without mandatory salt iodization.
  • Further research and public health strategies are needed to mitigate risks associated with plant-based dietary shifts.