Question: What nutrients does a collegiate swimmer need to look out for?Mainly calories would be absolute number one. Number two would be carbohydrate. So I do think that people can fuel athletic capabilities on low-carb diets, but you might want to look at stress hormones and sex hormones, because sometimes fueling athletic performance on a low-carb diet comes at the expense of elevated stress hormones, which could mess with thyroid hormones and sex hormones. I think those two things, the calories and carbs would be the top risk for potential hypothalamic amenorrhea. That would trump everything else, completely. Higher energy demands are going to demand more B vitamins. And that's generally going to be probably most B-vitamins besides B12 and folate. Although B-12 and folate are peripherally involved in energy metabolism, the other B vitamins are more directly involved.If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, a private discussion group, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up at https://chrismasterjohnphd.com/masterpass/ and use the code QANDA to get 10% off the membership for life. From now through March, I will be working full-time on finishing my Vitamins and Minerals 101 book, while reserving a portion of my time for consulting clients. You can pre-order my book at https://chrismasterjohnphd.com/book. You can sign up for a consultation at https://chrismasterjohnphd.com/consultations.

DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice.

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Chris Masterjohn, PhD, is the Founder and Scientific Director of the mitochondria test Mitome.