As pets
Turtles, particularly small terrestrial and freshwater turtles, are commonly kept as pets. Among the most popular are Russian Tortoises, Spur-thighed Tortoises, and Red-eared sliders (or Red-eared terrapin).
In the United States, due to the ease of contracting salmonella through casual contact with turtles, the U.S. Food and Drug Administration (FDA) established a regulation in 1975 to discontinue the sale of turtles under 4 inches. It is illegal in every state in the U.S. for anyone to sell any turtles under 4 inches long. Many stores and flea markets still sell small turtles due to a loophole in the FDA regulation which allows turtles under 4 inches to be sold for educational purposes.
Some states have other laws and regulations regarding possession of Red-eared Sliders (abbreviated as RES) as pets because they are looked upon as invasive species or pests where they are not native but have been introduced through the pet trade. As of July 1, 2007 it is illegal in Florida to sell any wild type RES. Unusual color varieties such as albino and pastel RES, which are derived from captive breeding, are still allowed for sale.

As food
The flesh of turtles was, and still is, considered a delicacy in a number of cultures. Turtle soup has been a prized dish in Anglo-American cuisine, and still remains so in some parts of the Far East.
Guilinggao jelly was a Chinese medicine preparation containing powdered shell of a certain turtle species; these days, though, it is typically made with only herbal ingredients.
Harvesting wild turtles is legal in Florida, and a single seafood company in Fort Lauderdale was reported (2008) as buying about 5,000 pounds of softshell turtles a week. The harvesters (hunters) are paid about $2 a pound; some manage to catch as many as 30-40 turtles (500 pounds) on a good day. Some of the catch gets to the local restaurants, while most of it is exported to the Far East; Florida Fish and Wildlife Conservation Commission estimates (2008) that around 3,000 pounds of softshell turtles are exported each week via Tampa International Airport.