Ultra-processed foods are foods that have undergone multiple industrial processing steps. They have significantly higher microplastic contamination than fresh, whole foods. Research shows the amount of microplastics people consumed in 2018 was more than six times what it was in 1990, largely due to increased consumption of processed foods.
Why Avoid
Ultra-processed foods have significantly higher microplastic contamination than fresh, whole foods. Research shows the amount of microplastics people consumed in 2018 was more than six times what it was in 1990, largely due to increased consumption of processed foods.
How Contamination Occurs
Factory Processing
- Factories use huge amounts of plastic equipment for efficiency
- Food touches plastic surfaces at multiple stages
- Conveyor belts, processing equipment, and packaging all contribute
- More processing steps = more contamination opportunities
Packaging Issues
- Ultra-processed foods typically come in extensive plastic packaging
- Multiple layers of packaging increase exposure
- Food often stored in plastic for extended periods before consumption
The Processing Problem
"The more ultra-processed a food is, the more likely it is to have high plastic contamination, because there are so many touch points in a factory making that food." - Dr. Sheela Sathyanarayana, University of Washington
Health Impacts
Beyond Microplastics
Ultra-processed foods also typically contain:
- High levels of salt, sugar, and unhealthy fats
- Chemical additives and preservatives
- Minimal nutritional value
- Higher inflammatory markers
Microplastic Exposure
- Accumulates from factory processing
- Additional contamination from packaging
- Heat processing can accelerate plastic migration into food
Better Alternatives
Choose Fresh, Whole Foods
- Buy produce from farmers' markets
- Cook from scratch when possible
- Select minimally processed options
- Use reusable containers for storage
When You Need Processed Foods
- Choose items in glass or metal containers
- Look for minimal packaging
- Rinse foods when possible to reduce surface contamination
- Store in glass or stainless steel after opening
Related Actions
Reduce Microplastic Exposure:
- Filter your drinking water
- Use glass containers instead of plastic
- Choose safer cookware
- Avoid disposable food containers