This excerpt from NSCA’s Guide to Sport and Exercise Nutrition briefly analyzes some of the research behind creatine and its application to sport performance.

Taurine is a well-known free amino acid that has gained prominence in recent years despite its little or no role in protein formation. Few studies on the ergogenic effect of taurine exist with inconsistent results. The answer to the question of whether performance markers demonstrate the benefit of taurine remains unclear. This study aimed to reach a consensus about whether taurine supplementation is effective on aerobic (time to exhaustion [TTE], maximal oxygen uptake [V̇O2max], and rating of perceived exertion) and anaerobic (power outputs, fatigue index, jumping, and blood lactate level) performance outputs. Google Scholar, PubMed databases, clinical trial websites, and gray literature were reviewed until November 2021. Mean differences (MDs) were pooled using random or fixed-effects models according to the heterogeneity degree of the related output. Although 18 studies were detected for the meta-analysis between 2001 and 2021, 16 studies were grouped. Only randomized controlled trials (single or double-blind) were considered. Taurine supplementation had a significant effect on vertical (MD 5 3.60; 95% confidence interval [CI] [2.32 to 4.89], p , 0.00001) and countermovement (MD 5 8.50; 95% CI [4.78 to 12.22], p , 0.00001) jump performance when compared with a placebo group. Taurine supplementation had no significant effect on the V̇O2max level and rate of perceived exertion (respectively, MD 5 20.54 mL/kg/min; 95% CI [26.84 to 5.75], p 5 0.87; MD 5 20.24; 95% CI [20.74 to 0.27], p 5 0.35) when compared with a placebo group. Overall, it looks to be effective for jumping performance and TTE. Taurine supplementation may be useful for people who want to improve these performance outputs.

There can be no doubt that protein is important and this article reviews the current research to help further understand the recommendations for protein intake.

Learn how to design an effective nutrition coaching program for all types of athletes without supplements, support staff, or expensive training tables. In this session from the NSCA’s 2017 Coaches Conference, Adam Feit compares the awfulness- versus awesomeness-based nutrition coaching models.

Not all diets are appropriate for every population and this is especially true of an athlete who is expected to train and perform at a high level. Learn about the negatives of fad diets, potential pitfalls, and realistic dietary guidelines for athletes.

In this session from the 2015 Personal Trainers Conference, dietitian Dawn Weatherwax explains how the health of the digestive system affects overall health. Learn how gastrointestinal health impacts fat loss and muscle gain, the signs and symptoms of poor gut health, and foods and supplements that have been shown to have a positive impact on gut integrity.

CC2023

In this session from the 2018 Personal Trainers Conference, Registered and Licensed Dietician, Dawn Weatherwax, provides a detailed look into the different variables that affect nutrition outcomes, body composition, metabolic testing, and supplementation for deficiencies, recovery, and optimal performance.

This article addresses various aspects of overtraining and overreaching, including the signs and symptoms, preventative supplementation, and the recovery process.

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