Hayden Panettiere’s Fitness Regimen Hayden Panettiere is looking great! Recently she attended the Whaleman Foundation Benefit, whose mission is to preserve and protect dolphins, whales, and porpoises. Hayden works out to stay in shape. She is known for her healthy and fit look. If you want to know how Hayden Stays so Fit, and all of her Weight Loss Secrets check out her full post here. Tweet This Post