Amber Trejo

Registered Dietitian & Personal Trainer

MS, RDN, CDN, NASM-CPT

Amber Trejo, personal trainer and registered dietitian at THE GYM

Amber Trejo is a registered dietitian, NASM-certified personal trainer, and certified PROnatal trainer, serving as a nutrition partner and personal trainer at THE GYM.

As the founder of Naked Wellness, she helps clients reach their nutrition and fitness goals in a positive, sustainable way. Amber simplifies health by debunking myths, promoting a balanced relationship with food and exercise, and making movement a celebration of strength. Her expertise spans sports performance, gut health, weight management, and prenatal and postnatal fitness.

Amber is also a professor teaching sports psychology, nutrition and wellness, and weight management. As a mom, she understands the importance of realistic approaches to wellness that fit into everyday life.

  • MS
  • RDN
  • CDN
  • NASM-CPT
All trainers

Credentials

Certifications and specialized training

Certifications

  • RDN
  • CDN
  • NASM-CPT

Education

  • Master’s in Nutrition in Human Performance

Specialties & training

  • Registered Dietitian Nutritionist
  • Certified PROnatal Trainer (prenatal & postpartum)
  • Advanced Obesity Specialist
  • Girls Gone Strong (Online Fitness Coach)

Highlights

  • Founder of Naked Wellness
  • Nutrition partner at THE GYM
  • Professor of sports psychology, nutrition and wellness, and weight management

Watch Amber

Short videos with Amber at THE GYM.

From marketing to the gym floor

Amber thought she’d spend her career in marketing, maybe even designing the holiday windows at Macy’s or Saks. At 20, she stepped into fitness and bodybuilding, and what started as her own search for strength and confidence became something bigger: she wanted to help others feel that same power.

She left her corporate job, went back to school, and became both a trainer and a dietitian. For Amber, fitness isn’t just about lifting weights, losing pounds, or competing on stage. It’s about showing people they’re capable of more than they believe, inside the gym and out.