- DIETITIAN NUTRITIONIST
Perform Nutrition By JAC
Just like a high-performance car needs premium fuel to run at its best, your body and mind need the proper nutrition to perform at their peak. Whether crushing it on the field, commanding the stage, or just trying to keep up with life, performance nutrition can mean the difference between thriving and surviving.
I’m Jackie Cotumaccio, a Registered Dietitian Nutritionist (RDN). I help athletes, performers, and active individuals fuel smarter, recover faster, and perform stronger without restrictive diets or food guilt.

At Perform Nutrition By JAC,
I Create Custom Nutrition Strategies To Help
Because here’s the truth:
Food Should Fuel You
Not Stress You Out
No Crash Diets
There Are No Complicated Food Rules
Real Food, Real Results
Real-life Solutions That Fit Into Your Routine
My Services

One-On-One
Nutrition Consulting
Personalized nutrition consulting to optimize performance, recovery, and overall health. Custom meal plans help athletes, performers, and individuals build sustainable eating habits.

Sports Team
Consulting
Fueling athletes the right way enhances performance, recovery, and endurance. I create customized team nutrition strategies for game-day fueling, recovery, and hydration to build winning habits.

Speaking
Engagements
Elevate team performance with Group Speaking Engagements from Perform Nutrition By Jac. Get expert nutrition strategies for energy, recovery, endurance, and injury prevention.
- TESTIMONIALS
Reviews From Clients
Luciana Pally2025-03-11Trustindex verifies that the original source of the review is Google. Jacqueline is a great dietitian and a good listener. She has been helping me reach my goals in regards to my weight, water intake and overall my new diet plan. I definitely recommend Jacqueline! Courtney Mejia2025-03-11Trustindex verifies that the original source of the review is Google. Jackie and I have been working together for a few years. She has helped me better understand how to fuel my body to feel energized and happy. The transformation I’ve experienced with her has been more than just physical! I’ve mentally come a long way from a place of disordered eating and that’s thanks to her support and guidance. I highly recommend her to anyone trying to better their lifestyle inside and out. Temple University Men's Gymnastics2025-02-26Trustindex verifies that the original source of the review is Google. We hired Jackie to give a presentation to the men's gymnastics team and she provided the best sports nutrition presentation I have seen! She provided realistic examples, important concepts that were easily digestible (pun intended), a tailored example for our sport, all in a positive and enthusiastic manner. It is easy to tell she is passionate about nutrition and helping others. As the head coach, I learned a lot and I could tell my team was engaged throughout. They asked questions after the presentation for another 30 mins. She provided such valuable information to my team and me and it was enjoyable to see the positive effect she had on everyone. Material on nutrition can often be hard to understand, hard to apply, or seem unrealistic to implement, however with Jackie's knowledge and top level communication, it left us all excited and aware of what changes need to be made. We plan to bring her in regularly! Jess2025-02-17Trustindex verifies that the original source of the review is Google. Not gonna lie, when my doctor said they wanted me to see a nutritionist, I rolled my eyes. As someone who's active and has basic knowledge on nutrition I thought I had this down packed. I was wrong. Working with Jackie I've learned and relearned details, tips, and ideas which made nutrition enjoyable and sustainable for me. My language, relationship, and attitude around food has improved immensely with Jackie's compassionate guidance. There is no "X is bad" or "remove this" the central focus are: how my nutrition is fueling on my runs/weightlifting days, am I maintaining my energy levels, and how aware am I of the meal. I had to unlearn some of society's beliefs around food, Jackie was right there every step of the way, providing knowledgeable insight, assistance, ideas, and encouragement. Working with her these past few years has been a blessing I am forever grateful for. I feel more aware, equipped, and understanding of what goes into my body, how I can make necessary adjustments, and how to have fun with my meals. I wish I did it sooner, if I had to restart my health journey from the beginning I'd pick Jackie all over again. :) Here are some pics of meals I've made: Healthy Turkish pasta Soft potato taco bowl Mediterranean chicken pita Halal chicken over rice Stephanie Quezada2025-02-09Trustindex verifies that the original source of the review is Google. Jackie is the absolute best in the business! She took the time to really listen to my health goals and created a custom plan for me that produced incredible real results. She is so genuine and truly cares about her clients. She treated me like family from the beginning. I am forever grateful for all of the professional help she has given me. If you want the best go to Jackie!! George E. Acevedo2025-02-05Trustindex verifies that the original source of the review is Google. As a PBA bowler and other media work I’m extremely satisfied on a professional level with Jackie. Her expertise has leveled me up. After my heart attack and cancer scare Jackie was my nutritionist. She was instrumental on my recovery and can honestly say she’s a super star. Thank you Ms.Cotumaccio for your relentless care. I will always be indebted to you. Best of luck in your endeavor’s and continue to have you part of my team. George E. Acevedo Yasmine Maggio2025-01-15Trustindex verifies that the original source of the review is Google. I've been seeing Jackie for almost three years now, and I'm so grateful for her guidance. No matter what's going on in my life that's affecting my nutrition, she always accommodates and helps me through it. Each time we meet, we make realistic goals—not just around nutrition, but lifestyle in general, because she understands how it's all connected. She tailors these goals to my specific needs, and she's never suggested any changes to diet or lifestyle that I wasn't comfortable with. I initially started seeing her for weight loss reasons, but over the years, Jackie has helped me improve my general health, including acid reflux and sleep issues. She's been with me through many ups in downs in my health and wellness journey, and I don't know where I'd be without her! Tali Winter2025-01-04Trustindex verifies that the original source of the review is Google. Jackie is one of the most insightful and passionate people I know. Her ability to connect with others and approach every situation with patience and compassion is unmatched. She has such a deep understanding of her field, and I’m always amazed by her knowledge and the thoughtful way she shares it. What truly stands out about her is her huge heart and incredible work ethic. She puts so much care and effort into everything she does, and it’s clear how much she genuinely wants to help others feel their happiest, healthiest and most confident. I’ve learned so much from her and feel inspired by her dedication and positivity. I also admire her healthy mindset and the balance she seeks in her own life that really rubs off on others. Anyone who works with Jackie is incredibly lucky. I have no doubt she will make a lasting impact in the lives of everyone she supports.