Nicole Rubenstein, MS, RDN, LD, CSSD, CDE

Nutrition for mountain biking
About Nicole

My interest in nutrition started long before I became a Registered Dietitian-Nutritionist. Growing up I was a snowboard racer on the U.S. Junior National Team and traveled the world to compete. I realized the importance of proper fueling during these years, so when I left racing in 2001 I shifted my focus to my next passion, nutrition and helping others. My career began in 2006 after completing my B.S. in Nutrition from Cornell University and my dietetic internship at New York Presbyterian. My foundation was diverse, working in a variety of clinical nutrition settings, a top sports nutrition practice in Manhattan, and running a private practice on Long Island. I relocated to Colorado in 2010 to continue my career and advance my skills as a sports dietitian. I enjoy working with complex sport nutrition cases (athletes with medical conditions) as well as recreational and elite athletes looking to improve performance or change body composition. I enjoy my free-time mountain biking, snowboarding, cooking, and relaxing with my two dogs, Sol and Woody. I love planning my own sport nutrition too, which has been essential for strength and conditioning to stay strong and healthy during mountain bike season.

Education and Credentials


Board certified sports dietititian nutritionist
  • Registered Dietitian for 14 years working in private practice and clinical nutrition settings

  • Extensive work with athletes who have type 1 diabetes 

  • Individual counseling, team counseling, and body composition testing with the following athletic groups: professional snowboarders, U.S. Speed Skating Team, cyclists, runners, triathletes, weight lifters, and Ironman athletes, among other sports

  • Counseling athletes with celiac disease, gastrointestinal disorders, and those who follow vegan diets and other dietary patterns

  • Extensive work with a variety of health conditions including diabetes, bariatric surgery, endocrine disorders, gastrointestinal conditions, and weight management

Media & Industry
  • Featured as a nutrition expert for Fox 31, KOA News Radio, 9NEWS, Denver Post, and Everyday Health

  • Nutrition author for Type 2 Nation and Insulin Nation

  • Presented live sports nutrition segments for the Colfax Marathon in Denver, CO every year from 2015-2019

  • Contributing writer for My Net Diary

  • Conference speaker at JDRF, American Diabetes Association, and the American Liver Foundation events

  • Nutrition Advisor for Jele hydration products

  • Reviewer for the Journal of the Academy of Nutrition and Dietetics

Brand Ambassador

Nicole Rubenstein, Registered Dietitian Nutritionist, Certified Sports Dietitian Nutritionist, Certified Diabetes Educator
Nutrition for skiing and snowboarding
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Jacque Maldonado, MS, RDN

sport nutrition for mountain biking
Jacque Maldonado, Registered Dietitian and Sports Nutritionist, US Masters Swim Coach, Certified Diabtes Educator, and Certified Ski Instructor
Ironman sports nutritionist, Ironman sports dietitian
About Jacque

As a life-long athlete I am a firm believer that nutrition can make or break an athlete’s ability to meet their goals.  I started swimming competitively at age 6 and essentially grew up in a swimming pool.  Skiing, hiking, cycling and tennis where also part of my early life.  After earning a B.S. and M.S. in Nutrition, I got hooked on running marathons and completed 26 of them, including qualifying for Boston.  In my 40s I started racing Ironman triathlons and completed 5 Full Ironmans and a dozen Half Ironmans (7 times on the podium).  I've also finished ultra runs (50k) and cycling events (Double Triple Bypass). Now in my 50s I'm enjoying Xterra Triathlons and understanding the unique needs of ‘senior athletes’.  I live in Summit County, CO and teach skiing, coach swimming and work from home as a Sports Dietitian-Nutritionist.  My passions include adventure travel, dog rescue work, and to be outside enjoying the sports I love.  My husband and I then relax at home with our three pugs.

Education and Credentials
  • Bachelor’s degree in Nutrition, Colorado State University, 1989

  • Master’s degree in Nutrition, University of New Haven, 2000

  • Dietetic Internship, Yale New Haven Hospital, 1991

  • Certified Specialist in Sports Dietetics (CSSD), 2014 – 2019

  • Certified Diabetes Educator (CDE),  1995 – 2020

  • Certified Ski Instructor (PSIA) - Level 2, 2016 – present

  • Certified Triathlon Coach - Level 1, 2012 – 2017

  • Certified US Masters Swimming Coach - Level 2, 2016 – present

  • Registered Dietitian for 27 years in clinical, wellness, and athletic settings

  • Sports Dietitian Nutritionist, working with triathletes, runners, cyclists, backpackers, climbers and weekend warriors

  • Certified Coach, developing training plans for athletes in: Triathlon, Swimming, Skiing

  • Extensive training and experience with weight loss, weight gain and maintenance

  • Extensive training and experience with type 2 diabetes and Medical Nutrition Therapy

  • Author of sports nutrition and training articles for the Colfax Marathon official website, 2011– 2014

  • Appeared on 9NEWS to discuss nutrition for running a marathon prior to the Colfax Marathon

Racer's Edge Nutrition Partners and Recommended Providers

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