A recent study by the National University shows that Costa Rica uses more chemical pesticides per agricultural acre than any nation in the world, beating out both China and the U.S.

Costa Rica uses 18.2 KG of agrochemicals per hectare of cultivated land. China uses 18 KG per hectare, and the U.S. uses only 2.5 KG per hectare.

If you’re worried about consuming food with chemical contaminants, stay away from the “dirty dozen” (in order of contamination) which include:

  • Apples
  • Celery
  • Sweet bell peppers
  • Peaches
  • Strawberries
  • Nectarines
  • Grapes
  • Spinach
  • Lettuce
  • Cucumbers
  • Blueberries
  • Potatoes

Food with the least amount of contamination are in the “clean fifteen” (in order of least contamination) list:

  • Onions
  • Sweet Corn
  • Pineapples
  • Avocado
  • Cabbage
  • Sweet peas
  • Asparagus
  • Mangoes
  • Eggplant
  • Kiwi
  • Cantaloupe
  • Sweet potatoes
  • Grapefruit
  • Watermelon
  • Mushrooms

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