Strawberries rate the highest on the dirty list for pesticides. Buy organic or locally sourced where you know what type of farming practices are used.
They are excellent antioxidants due to their high levels of flavonoids. Their bright red color means they have specific flavonoids which are anti-inflammatory as well as anti-cancer. Strawberries are also a good source of vitamin C, vitamin K, manganese, pantothenic acid, B1, B6, folic acid, biotin, iodine, and the always excellent fiber.
Strawberries are one of the more common foods associated with food allergies. They also contain small amounts of oxalates which should be monitored by those with a history of calcium oxalate kidney stones.
Gently wash and pat dry. Be careful as they are easily mashed. Remove the stems, leaves, caps, and white hull.