CPT, Nutritionist, Strength & Conditioning & more
Official certification pageThe International Sports Sciences Association (ISSA) is one of the largest online fitness certifiers, offering an accessible open-book CPT exam alongside a broad catalog of specializations in nutrition, strength and conditioning, and corrective exercise.
ISSA is a popular entry point into the personal-training field thanks to its self-paced, online format and broad specialization catalog, making it a practical choice for new trainers building a credential stack.
ISSA · ISSA-BBS
Specialized certification validating expertise in bodybuilding-specific training, nutrition, and coaching strategies for competitive and recreational physique athletes.
ISSA · ISSA-Nutritionist
Entry-level nutrition coaching certification for fitness professionals and personal trainers. Validates knowledge of nutrition fundamentals, client assessment, and personalized nutrition planning.
ISSA · ISSA-CPT
Entry-level personal training certification validating foundational knowledge of exercise science, client assessment, program design, and training techniques for fitness professionals.
ISSA · ISSA-GLP1
A specialization course for fitness professionals designed to safely coach clients using GLP-1 weight loss medications, addressing behavioral, physical, and emotional changes during rapid weight loss.
ISSA · ISSA-HC
The ISSA Certified Health Coach credential validates expertise in holistic health coaching, lifestyle change, nutrition guidance, and behavioral coaching to help clients achieve sustainable wellness goals.
ISSA · ISSA-SC
Professional certification for strength and conditioning coaches covering exercise science, program design, and athletic performance enhancement through evidence-based training methods.