I’d be surprised if there weren’t microplastics in the veggies I’m growing in my organic backyard garden. They are in the water and since uptake by plants has been shown[0] I’d assume they are basically unavoidably at this point. Of course limiting consumption is a goal so avoiding the industrial food system and eating mostly things at the bottom of the food chain are good ways to do that.

0: https://pmc.ncbi.nlm.nih.gov/articles/PMC10966681/