Recorded at the ISSN 2026 Annual Conference as Dr. Guillermo Escalante prepared to begin his 2026-2028 term as ISSN President, this conversation reflects a career shaped by curiosity, cross-disciplinary education, and long-term involvement in the profession.
“Meet people, make yourself available, find a good mentor, and invest in your own development.”
— Dr. Guillermo Escalante
Dr. Guillermo Escalante
- Doctor of Science in Athletic Training and MBA
- Professor of Kinesiology and academic leader at California State University, San Bernardino
- Certified athletic trainer, strength and conditioning specialist, and sports nutritionist
- Researcher in sports medicine, sports nutrition, human performance, and physique enhancement
- Incoming ISSN President for the 2026-2028 term at the time of the interview
There is no single job called a career in sports nutrition.
The field includes practitioners who work directly with athletes, researchers, lecturers, sports medicine professionals, strength coaches, consultants, product specialists, and people who lead universities or professional organisations. Some careers stay within one lane. Dr. Guillermo Escalante's has moved across many of them.
His work has spanned athletic training, strength and conditioning, sports nutrition, research, university teaching and administration, consulting, competitive bodybuilding, and professional leadership. Rather than making his career look unfocused, that range has allowed each discipline to strengthen the others.
Before the Qualifications, There Was Curiosity
Guillermo traces his interest in sports nutrition back to childhood. At 12, he received his first sports nutrition book. He wanted to become bigger, faster, and stronger, and he understood early that nutrition played an important part in both health and performance.
He did not understand everything he was reading. That was not the point. The book gave him questions worth following.
Formal education later supplied the methods and professional grounding: athletic training, biology, business, strength and conditioning, and sports nutrition. The combination reflects the way athlete problems appear in real life. Injury, training load, food intake, supplementation, recovery, behaviour, and organisational decisions rarely arrive as separate subjects.
Evidence Has to Remain Useful
Guillermo first came to the ISSN to present research on phosphatidic acid supplementation. The choice of conference was deliberate. If the work concerned sports nutrition and supplements, he wanted to present it in the professional community built around those questions.
He describes the ISSN as integral to the growth of sports nutrition science and evidence-based practice. Its value lies not only in producing information, but in helping keep that information current, relevant, and applicable.
That relationship between research and practice matters across the profession. Practitioners need to know what evidence can and cannot support. Researchers benefit from understanding the questions athletes, coaches, and organisations are actually facing. Educators must translate both into material that students can use responsibly. A strong professional community allows those groups to challenge and learn from one another.

Why He Keeps Coming Back
Guillermo has attended the ISSN conference for more than a decade. The science brings him back, but so do the people. He describes a low-ego environment where leading scientists, practitioners, students, and industry professionals can discuss research seriously without becoming inaccessible.
One conference may create an introduction. Returning builds professional presence. Over time, people see the quality of your work, whether you contribute, and how you treat others. Those repeated interactions can lead to collaborations, graduate opportunities, jobs, leadership positions, and friendships.
Professional development does not end when a degree or certification is awarded. The field keeps changing, and the people working within it need places where they can change with it.
Invest in Access, Mentors, and Yourself
Guillermo advises students to attend conferences, meet people, make themselves available, and find a good mentor. He also acknowledges the practical obstacle: attending can be expensive.
His advice is to look actively for scholarships, volunteer roles, poster presentations, and other routes that make participation possible. When circumstances allow, attending can also be treated as an investment in professional development. A single connection may help someone find a graduate programme, research opportunity, or position that would have been difficult to discover from a distance.
Being in the room is only the beginning. Ask informed questions. Introduce yourself. Offer to help. Follow up afterwards. Mentors and professional contacts cannot respond to interests and effort they never get to see.
A Question for You
Guillermo's career resists a narrow definition of success. Sports nutrition can lead into practice, research, teaching, sports medicine, business, management, or a combination of several roles. A strong foundation gives professionals room to move without losing scientific rigour.
Which direction interests you most - applied practice, research, sports medicine, education, business, or professional leadership?


From Learning to the Profession
More conversations in the Global Voices in Sports Nutrition series will follow, featuring people whose careers have taken very different paths. Their common ground is that a career does not happen automatically after a certificate. Education gains value when it helps people enter real professional settings, learn from those doing the work, and find where they can contribute.
GPNi® aims to connect structured education and ISSN-aligned certification with the people, science, and professional community shaping the field.
Explore the pathways:
Follow Dr. Guillermo Escalante
- Instagram: doctorgfit
- Facebook: Guillermo Escalante
- X / Twitter: Guillermo Escalante
- YouTube: DoctorGfit “doctorgfit”
- LinkedIn: Guillermo Escalante, DSc, MBA, MS, ATC, CSCS, FISSN
- Website: doctorgfit.com