EDIT: https://www.ewg.org/foodnews/summary.php
The 2023 DIRTY DOZEN
Of the 46 items included in our analysis, these 12 fruits and vegetables were most contaminated with pesticides:
Strawberries
Spinach
Kale, collard and mustard greens
Peaches
Pears
Nectarines
Apples
Grapes
Bell and hot peppers
Cherries
Blueberries
Green beansI wonder if the reason many feel better eating only meat is that they avoid pesticides that wreck havoc on their body. I know I do feel like a million bucks after just 10 days, even though it's extremely boring.
The reasons for high mercury levels in tuna, shark, and swordfish is that each of these is both a predator and often eats other predatory species. There are numerous other examples of both species and contaminants, including even natural and even vital substances, e.g., vitamin A toxicity in carnivorous livers.
Fish (amongst other sea life) are an exception specifically because humans aren't concerned with that efficiency, and carnivorous fish tend to grow larger which poses efficiency benefits when line- or net-fishing.
Another class is birds, notably fish-eating species, which may be 2nd- or 3rd-order carnivores (carnivores of carnivores, or carnivores of carnivore-eating carnivores).
Or to put it another way, roundup is made by a large, influential company (Monsanto) and they can pressure regulatory agencies & politicians.