Dietary supplement use is quite prevalent among bodybuilders to enhance their physiques for competition. Many of the dietary supplements used by these athletes are neither safe nor effective. Several reviews have been published detailing the efficacy of dietary supplements for athletes; however, none have been written specifically for bodybuilders and physique athletes. Therefore, the aim of this article is to provide an evidence-based review of the top 5 dietary supplements for bodybuilding competitors: creatine, caffeine, protein powders, free-form essential amino acids, and beta-alanine. This review will provide bodybuilders, coaches, and practitioners with information on each supplement’s mechanism of action, seasonal benefits, protocol for use, and special considerations to optimize supplement strategies for performance, physique, and overall competitive success.

In this session from the 2019 Tactical Annual Training, Stefan Pasiakos identifies mechanisms by which military operations degrade muscle mass and performance, defines warfighter nutrition requirements, and discusses ethical and efficacious androgen therapies to enhance warfighter lethality.

Adequate nutrition generally promotes training adaptations and thus optimal performance. Adolescence is characterized by a pubescence growth spurt, increasing energy and nutrient needs. Most team sports literature focuses on male athletes, with little on adolescent female team sports. Adolescent female athletes are at an increased risk of inadequate energy, and micronutrient intakes because of the pursuit of high fitness levels, and society pressures. This may cause hormonal irregularities, delayed development, poor bone health, and increased risk of injury. This review synthesizes information on the nutritional needs of adolescent female team sport players for performance and health.

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.

This excerpt from NSCA’s Guide to Sport and Exercise Nutrition discusses the research surrounding the timing of hydration and its impact on sport performance for those participating in aerobic endurance exercise.

Eating the right types of food, in the right amounts, and at the right times are the keys to staying healthy and performing well. But does it have to be so confusing and complicated? Do we have to dissect every little detail to maximize performance? What if we could instead find the few specific changes that lead to the greatest results in each of our clients?

In this session from the 2019 NSCA National Conference, Professor and Chair of the Department of Exercise Science at the University of South Carolina, Shawn Arent, discusses different nutritional strategies for optimizing performance versus optimizing body composition. He also reviews the current research for various nutritional approaches and trends in nutritional recommendations.

Knowledge of metabolic rate can help athletes as well as health-conscious people improve their exercise performance or obtain the fat-to-lean-mass ratio optimal for their personal situations. Two examples of how this works follow.

Before sports nutritionists and coaches begin prescribing unconventional eating recommendations to athletes, it is important to consider the scientific evidence supporting a low-carbohydrate diet for boosting athletic performance.

Supplements that claim to boost nitric oxide have not been proven to be all that effective since the actual conversion in the blood cell is rather complicated and requires oxygen, which is usually in short supply during exercise or at high altitude. So how does an athlete boost their nitric oxide production?