The article discusses the common advice of not peeling fruit and vegetables to retain the nutrients found in their skins, but highlights how the story is more complicated. Plant Based Science London's video, featuring insights from Dr. Michael Greger, explains which fruits and vegetables should be peeled and which are better left intact, taking into consideration pesticide exposure as well. Greger emphasizes that fruits like apples should rarely be peeled as their skins contain high levels of antioxidants, while tubers and root vegetables do not need the same protection, therefore their peels can be removed without much nutritional downside.

The article also touches on the importance of choosing organic produce to reduce pesticide exposure, as research has shown that washing fruits and vegetables may not effectively remove pesticide residues. It emphasizes that while there are exceptions such as eggplant skins and melon rinds, the general guideline is to keep peels on most fruits and peel most underground vegetables if preferred. Understanding which fruits and vegetables to peel can be simplified by following a simple rule based on how the plants grow, as highlighted by Dr. Greger in the video from Plant Based Science London.