--- title: Health & Fitness Blog - NASM | Nancy Clark description: "Nancy Clark, MS, RD, CSSD (Board Certified Specialist in Sports Dietetics),\ncounsels active people at her private practice in Newton, Mass. (617.795.1875). For more food help, enjoy reading her Sports Nutrition Guidebook and Food Guide for Marathoners. They are available at www.nancyclarkrd.com." ---   [![NASM](https://blog.nasm.org/hubfs/Nasm_December2018/images/logo186x62.png)](https://blog.nasm.org) - [NASM.org](https://www.nasm.org) - [Fitness](http://blog.nasm.org/tag/fitness) - [CPT](http://blog.nasm.org/tag/cpt) - [Nutrition](http://blog.nasm.org/tag/nutrition) - [CES](http://blog.nasm.org/tag/ces) - [Sports Performance](http://blog.nasm.org/tag/sports-performance) - [Workout Plans](http://blog.nasm.org/tag/workout-plans) - [Wellness](http://blog.nasm.org/tag/wellness) # Nancy Clark ![Nancy Clark](https://blog.nasm.org/hubfs/Nancy%20Clark.jpg) Nancy Clark, MS, RD, CSSD (Board Certified Specialist in Sports Dietetics), counsels active people at her private practice in Newton, Mass. (617.795.1875). For more food help, enjoy reading her Sports Nutrition Guidebook and Food Guide for Marathoners. They are available at www.nancyclarkrd.com. ### Recent Posts [![Picture of chicken and other food with healthy carbs](https://blog.nasm.org/hs-fs/hubfs/thinkstockphotos187139996(resized).jpeg?width=723&name=thinkstockphotos187139996(resized).jpeg)](http://blog.nasm.org/low-carb-diet-for-athletes) [American Fitness Magazine](http://blog.nasm.org/tag/american-fitness-magazine) ## [A Low-Carb Diet for Athletes?](http://blog.nasm.org/low-carb-diet-for-athletes) ![Nancy Clark](https://blog.nasm.org/hubfs/Nancy%20Clark.jpg) [Nancy Clark](http://blog.nasm.org/author/nancy-clark) | March 21, 2020 Originally appeared in the winter 2015 issue of the American Fitness Magazine. Have you been hearing stories that fats are better than carbs as fuel for endurance athletes? Maybe you have wondered if scientific research supports those stories. To find ... 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