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Rebecca Bagiatis, Author at GNC

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Rebecca Bagiatis

Rebecca Bagiatis

MS

About the Author

An Associate Manager of Product Design for GNC, Becca is on a mission to research & design scientifically backed products with the highest quality ingredients for new GNC performance products like protein powder, pre-workouts, hydration products, and more. As a previous athlete for 16 years, Becca is passionate about bringing top-of-the-line ingredients & products to GNC’s shelves for other athletes who are looking to reach their peak potential. She has had the opportunity to be apart of a clinical study team here at GNC which has helped her see research from a different lens where she is now seeing everything that goes into creating a clinical study. She received her Master’s Degree in Exercise Science & Health Promotion, with a Concentration in Nutrition from California University of Pennsylvania. She completed her Bachelor’s Degree in Nutrition & Fitness with a minor in Athletic Coaching. During her undergrad, she created an athletic nutrition journal for college athletes with her professor. During those four years, she had the experience of being a D2 distance freestyle swimmer where she placed top 8 in the Pennsylvania State Athletic Conference (PSAC) for various events; such as, the 500, 1000, and the mile freestyle. In 2021, Becca completed her Master’s Degree and took on this role in March of 2022. Becca currently serves as an Associate Manager of Product Design at GNC Corporate Headquarters. In this role, she researches ingredients and specializes in sports performance products. Her responsibility is to bring research to the table for ingredients that are in upcoming products. Prior to GNC, Becca spent her time as a Nutritionist where she helped families in a clinical setting establish proper nutrition habits for their life-long health. From there, she took a Nutrition Educator position for a school district within the same company where she taught students the importance of health & wellness. From these two positions, she gained an immense amount of knowledge for nutrition through the life cycle from babies to older adults which helped her form a well-rounded foundation for her nutrition experience. Following this position, she worked as a Fitness Director for a corporate fitness center that allowed her to dive more into the fitness side of the field. Becca has been able to take these past nutrition & fitness positions and apply them into research and new concepts for future GNC products. In her free time, Becca loves walking her dogs, going to CrossFit, picking vegetables from her home garden, and sitting on the sun porch with her husband. She finds balance and joy in traveling, trying new restaurants, and surrounding herself with her friends & family.

Articles by Rebecca Bagiatis

Ingredient Deep Dive – Velositol

Learn more about Velositol, a new and trending supplement! GNC's Rebecca Bagiatis explains what Velositol is, its benefits, available research, and who should consider taking it.

  • January 13, 2026
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  • Rebecca Bagiatis
  • A Workout Powerhouse: Caffeine

    Find out how incorporating caffeine into your diet and healthy lifestyle can improve your workout. Read about the details today!

  • January 30, 2026
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  • Rebecca Bagiatis
  • A Workout Powerhouse: BCAAs

    Find out all the details around BCAAs and how they can benefit you during your workouts. Bring your workouts to the next with better results!

  • January 30, 2026
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  • Rebecca Bagiatis