Jennifer Nicole Lee (born Jennifer Nicole Siciliano on June 13, 1975) is an American fitness model, motivational speaker, and author. She is known for losing 70 pounds and launching a career as a fitness guru after bearing two children.
Lee describes herself as having “no athletic background whatsoever,” and says she has struggled with her weight her entire life. She weighed 170 pounds when she got married, and continued to gain weight during both of her pregnancies, eventually reaching 200 pounds after the birth of her second child. Lee lost 70 pounds, was crowned “Miss Bikini America” in 1996, and launched a career as a “fitness guru”.JNL, Inc. (now JNL, Inc. Worldwide) was founded in January 2004.Her books have been published both electronically and in print. She also launched a line of swimwear.

Lee has two clothing lines. The Jennifer Nicole Lee Collection through Rogiani is designed by Elisabetta Rogiani for fitness model photo shoots. Lee’s own line is called the JNL Clothing Line, which includes gym and streetwear.

In March 2011, Lee opened the Fitness Model Factory in Miami, Florida. The “factory” is a production studio containing photography and videography studios, hair and makeup styling, and coaching for fitness models.

Lee is the creator of a fitness program called JNL Fusion which emphasizes “super spiking,” or the introduction of cardio between weight training exercises.Lee states that JNL Fusion is designed after her own workout routine: 4 training sessions of 45 minutes each per week. The workout method is targeted to women.JNL Fusion is a home exercise system and DVD set. It requires several small pieces of equipment. JNL Fusion has a certification program for personal trainers. Lee recruits and educates the trainers.JNL Fusion uses mottos like “glutes that salute” and “fab abs.” She also holds an annual wellness retreat called the JNL Fusion World Conference & Fitness Revival.

She has appeared on “Inside Edition”,”Oprah”, “The Early Show,” “E! Entertainment,” “Fox and Friends,” and “Extra.”Lee appeared in the 2013 film Pain & Gain, directed by Michael Bay, and starring Mark Wahlberg and Dwayne Johnson. Her character, a Principle Sun Gym trainer, had a “Sun Gym” trainer’s shirt. As of 2012, Lee has appeared on 44 magazine covers, including three appearances on the cover of Oxygen magazine. She is also the subject of a calendar titled “The Jennifer Nicole Lee Body Paint Calendar.”

Lee’s trademark phrase is “Strong is the new skinny.”