MyFitnessPal said Monday that it has received $18 million in Series A funding. The lead investor was Kleiner Perkins Caufield & Byers. Accel Partners also participated in the round. In addition to the news about the funding, John Doerr, a partner at KPCB and Andrew Braccia, a partner at Accel Partners, have joined the company’s board. Headquartered in San Francisco, Calif., MyFitnessPal is a diet and exercise tracking app.