• Our Vision

    Our vision is to guide the health of our customers to wholeness.

Our Mission

Our mission is to create an extensive directory of credentialed Nutrition Advisors who can help you achieve your health goals by creating a personalized plan that takes into account your individual needs, body type, health history, and lifestyle. If you're tired of trying things that don't work, starting and quitting over and over again, or if you just don't know where to start, a Nutrition Advisor can provide the support and guidance you need to reach your goals. The following are some of the benefits of working with a Nutrition Advisor:

If you are serious about improving your health, working with a Nutrition Advisor can be a valuable investment. We also offer a limited number of nutritional supplements for sale on this website that are designed to improve health and quality of life. Our supplements are safe, all-natural with no known harmful side-effects and are clinically proven to work, validated by scientific research.

Why Choose Us


We care about your health goals and are here to help you achieve them. We are seriously interested in hearing your story, seeing you succeed, and having you share that with the community to help someone else on their journey.


We are committed to providing quality functional medicine and a holistic approach to healthcare, as well as educational materials and in-depth research to help answer all of your nutrition and weight loss questions. Our customer service reps are real, live people! Call us today to start your journey to better health.


We are interested in building long-term relationships with our customers and providing you with access to highly professional nutritional advisors throughout our national network. Our goal is to help you make a difference in your health for decades to come!

Our Guarantee

If you purchase nutritional supplements on this website, your satisfaction is guaranteed.

Additionally, we will beat any price you find online for our products with similar expiration dates (ours are typically 18 months or longer) by 10% before purchase or we will refund 110% of the difference after purchase.

USMC Lt. Col Petrosino

Dr. Steven Petrosino PhD, Lt.Col USMC

A retired USMC Lieutenant Colonel, Dr. Steven Petrosino, PhD, has worked in the pharmaceutical industry as both a clinical scientist and pharmaceutical consultant since 1987. These roles have given him a unique perspective and balance on both traditional allopathic medicine (drug and surgical therapy) and nutritional preventive medicine.

Jackie Frederic

Jackie Frederick, Lt.Col USAF

Lieutenant Colonel Jackie Frederick joined Nutrition Advisor LLC in 2023. Dr. Petrosino and Jackie Frederick teamed up after working together as Fellows for Children’s Health Defense in 2022. Not only are they in total agreement regarding natural healthcare, but also have similar backgrounds due to both honorably retiring from the United States military after more than 20 years of service.

Today, Jackie is serving others through nutritional advice and coaching based on her personal experiences with her husband’s and her own medical issues. She is now focusing her leadership efforts on teaching her 4 children, serving in her church and helping Dr. Petrosino build Nutrition Advisor into the premier website directory for non-allopathic medicine.

Our Company

Nutrition Advisor was established in 1997 by Lt.Col Steven Petrosino, USMC (Retired), as an offshoot of his dissertation and doctoral project “The Interactive Nutritional Supplement Advisor.” We are located in Dublin, Ohio outside of Columbus and serve clients all over the United States (and the world) by helping them reach their nutrition and health goals.

We are a veteran-owned and operated company, and proudly donate a percentage of our profits to support our US combat veterans who are deployed abroad through the Semper Fi Fund for combat injured men and women, and their families.