Personal trainers should consider other certifications on top of their accredited personal trainer certification, depending on their career goals and interest. Having multiple certifications may make you more desirable, as it will give you more expertise to offer clients. For example, personal trainers can also become certified nutrition coaches, sports nutrition coaches, wellness coaches, group fitness instructors, stretching and flexibility coaches, or explore corrective exercise specialization, behavior change specialization, performance enhancement specialization, and weight loss specialization to name just a few.