Sweethearts are small heart-shaped candies sold around Valentine's Day. Each conversation heart is printed with a message such as "Be Mine", "Kiss Me", "Call Me", "Let's Get Busy", and "Miss You". Sweethearts are made by the New England Confectionery Company, or Necco. A similar type of candy is sold in the UK under the name Love Hearts. Necco manufactures nearly 8 billion Sweethearts per year.
Sweethearts are now available in a variety of assortments to choose from including chocolate, tart, and smoothie flavors.
Daniel Chase, Oliver's brother, began printing sayings on the candy in 1866. He designed a machine that was able to press on the candy similar to a stamp. The candy was often used for weddings since the candies had witty saying such as: "Married in pink, he will take a drink", "Married in White, you have chosen right", and "Married in Satin, Love will not be lasting".
The heart-shaped conversation candies to be called Sweethearts got their start in 1901. Other styles were formerly produced such as lozenges, postcards, horseshoes, watches, and baseballs. As of 2010, the classic pastel candy formula is being abandoned. Sweethearts will be softer candies with vivid colors and all new flavors. Line extensions carrying the Sweethearts brand include chocolates and sugar-free hearts.
In the 1990s, Necco vice-president, Walter Marshall, wanted to update some of the sayings and retire others, including "Call me", "Email me", and "Fax me". The romantic expressions continue to be revised for young Americans. Necco receives hundreds of suggestions a year on new sayings.
Necco produces the hearts from late February through mid January of the following year. Approximately 100,000 pounds (45,000 kg) of hearts are made per day, which sells out in about six weeks.
As of October 2011, Necco has announced that the switch to natural flavors and colorings for their Necco wafer candies has led to a significant decline in sales, and so they will be returning their products to the original artificial flavors and colors. However, the new recipe for the sweethearts candies that was introduced in 2010 remains in production today.
In popular culture 
- In the classic book Anne of Green Gables, published in 1908, Gilbert attempts to give a pink candy heart with the words "You Are Sweet" to Anne, who promptly grinds it under her heel.
- In the Futurama episode "Love and Rocket", the Planet Express crew is hired to deliver candy hearts to the rulers of Omicron Persei 8. While picking up the delivery, it is commented that, "Tastes may have changed, but our secret recipe sure hasn't." The camera then shows a mixer using Bone Meal and Earwig Honey. Upon finding (and being confused by) a heart with the message "I Wuv U" on it, the Omicronians grow enraged and pursue the crew with their own attack fleet. A sub-plot also involves Fry trying to find a candy heart whose message can properly express how he feels about Leela.
- In The Simpsons episode "I Love Lisa", Bart Simpson designs crude insult remarks for conversation hearts, e.g. U Stink.
- The World of Warcraft online game has Heart Candies with eight different romantic sayings during the Love Is In The Air seasonal event. These can be used to flirt by giving them to other players' characters.
- In the Arrested Development episode "Marta Complex," George Michael digs through a bowl of candy hearts looking for the one with the answer he wants.
- In the Awkward. episode "My Love is a Black Heart", Valerie gives Jenna candy hearts that say "Chill Out" and "Get the Drift?" while discussing jealousy on Valentine's Day, and mistakenly gives a "Kiss Me" heart meant for her boyfriend instead of a "BFF" heart.
See also 
- Necco Valentine's Day Products Retrieved on 2008-03-26
- NECCO History
- New England Confectionary Comp (2010): Sweethearts
- Gray, Joe (January 26, 2010). "Pining for old Sweethearts". The Stew.
- Floyd, Jacquielynn (February 12, 2010). "Conversation Hearts overhaul is tough for some fans to swallow". The Dallas Morning News.
- "In with the old, out with the new". The Boston Globe.