Vitamin C Super Star

By: Stacy Kennedy, MPH, RD, CSO, LDN; Reboot Nutritionist

Cold weather and runny noses are all around for many of us. Are you looking to boost up your defenses through some good old Vitamin C? Here’s a fun fact that may surprise you, which of the following has the most of this important antioxidant per serving?


  • Orange
  • Grapefruit
  • Kiwi
  • Spinach


Hmmm, could it be the usual suspect orange? Per serving, the little kiwi has twice the Vitamin C of an orange!* Mind you a serving of kiwi is about 2 kiwis or just over 3/4 cup of the sliced fruit. Include this super star in your fruit salads, mixed into fresh juice or for a snack all by itself. Here are some delicious C-rich combos: Kiwi+Strawberry+Lime, Kiwi+Pineapple+Blueberry, Kiwi+Mango+Papaya. To choose a ripe kiwi each time, feel for one that has a medium softness – too hard is under ripe and too soft is overripe.


Now the real challenge is how to get into the good stuff behind the furry exterior without making a big sticky mess. Here’s my favorite technique, but I’ll admit it’s a work in progress — Cut off the ends of the kiwi, then slice in half. Place each half cut side down onto a plate. Hold onto the skin with one hand and scoop out the flesh using the other hand. Cut into slices if desired.





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Stacy Kennedy, MPH, RD, CSO, LDN; Reboot Nutritionist

Stacy is a Board Certified Specialist in Oncology Nutrition and an Integrative Nutritionist. She consults for various companies, focusing on health, wellness and innovative strategies to help increase individual’s fruit and vegetable intake. Stacy is an American College of Sports Medicine Certified Health Fitness Specialist; she holds a BS degree in Dietetics from Indiana University, completed her dietetic internship at Massachusetts General Hospital, and earned a Masters in Public Health from the University of North Carolina at Chapel Hill. She is a Senior Clinical Nutritionist at the Dana Farber Cancer Institute/Brigham & Women’s Hospital, Harvard Medical School teaching affiliates, in Boston, MA, with more than 20 years of experience. Stacy created and now serves as project manager and lead writer for nutrition services content on the Dana Farber website and the affiliated, nationally recognized nutrition app. Stacy is regularly featured on TV, radio, print and social media on behalf of Dana Farber and other organizations. Together with her husband, Dr. Russell Kennedy PsyD, they have a private practice, Wellness Guides, LLC. Stacy is an adjunct professor in Wellness and Health Coaching at William James College, currently teaching a graduate course in Health Coaching. Stacy is featured in the award winning documentary films, “Fat, Sick & Nearly Dead” and “Fat, Sick & Nearly Dead 2,” and serves on the Reboot with Joe Medical Advisory Board. Stacy lives in Wellesley with her husband, two sons and three dogs. She enjoys cooking, yoga, hiking and spending time with friends and family. Stacy is also one of the nutritionists who runs our Guided Reboot programs.

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