Caffeine For The Sustainment Of Mental Task Performance

This report from the Committee on Military Nutrition Research reviews the history of caffeine usage, the metabolism of caffeine, and its physiological effects. The effects of caffeine on physical performance, cognitive function and alertness, and alleviation of sleep deprivation impairments are discussed in light of recent scientific literature. The impact of caffeine consumption on various aspects of health, including cardiovascular disease, reproduction, bone mineral density, and fluid homeostasis are reviewed. The behavioral effects of caffeine are also discussed, including the effect of caffeine on reaction to stress, withdrawal effects, and detrimental effects of high intakes. The amounts of caffeine found to enhance vigilance and reaction time consistently are reviewed and recommendations are made with respect to amounts of caffeine appropriate for maintaining alertness of military personnel during field operations. Recommendations are also provided on the need for appropriate labeling of caffeine-containing supplements, and education of military personnel on the use of these supplements. A brief review of some alternatives to caffeine is also provided.

This report from the Committee on Military Nutrition Research reviews the history of caffeine usage, the metabolism of caffeine, and its physiological effects. The effects of caffeine on physical performance, cognitive function and alertness, and alleviation of sleep deprivation impairments are discussed in light of recent scientific literature. The impact of caffeine consumption on various aspects of health, including cardiovascular disease, reproduction, bone mineral density, and fluid homeostasis are reviewed. The behavioral effects of caffeine are also discussed, including the effect of caffeine on reaction to stress, withdrawal effects, and detrimental effects of high intakes. The amounts of caffeine found to enhance vigilance and reaction time consistently are reviewed and recommendations are made with respect to amounts of caffeine appropriate for maintaining alertness of military personnel during field operations. Recommendations are also provided on the need for appropriate labeling of caffeine-containing supplements, and education of military personnel on the use of these supplements. A brief review of some alternatives to caffeine is also provided.

Provides a critical review of stimulant medication literature regarding stimulant efficacy for restoring/maintaining cognition during sleep loss.

Caffeine in Food and Dietary Supplements is the summary of a workshop convened by the Institute of Medicine in August 2013 to review the available science on safe levels of caffeine consumption in foods, beverages, and dietary supplements and to identify data gaps. Scientists with expertise in food safety, nutrition, pharmacology, psychology, toxicology, and related disciplines; medical professionals with pediatric and adult patient experience in cardiology, neurology, and psychiatry; public health professionals; food industry representatives; regulatory experts; and consumer advocates discussed the safety of caffeine in food and dietary supplements, including, but not limited to, caffeinated beverage products, and identified data gaps. Caffeine, a central nervous stimulant, is arguably the most frequently ingested pharmacologically active substance in the world. Occurring naturally in more than 60 plants, including coffee beans, tea leaves, cola nuts and cocoa pods, caffeine has been part of innumerable cultures for centuries. But the caffeine-in-food landscape is changing. There are an array of new caffeine-containing energy products, from waffles to sunflower seeds, jelly beans to syrup, even bottled water, entering the marketplace. Years of scientific research have shown that moderate consumption by healthy adults of products containing naturally-occurring caffeine is not associated with adverse health effects. The changing caffeine landscape raises concerns about safety and whether any of these new products might be targeting populations not normally associated with caffeine consumption, namely children and adolescents, and whether caffeine poses a greater health risk to those populations than it does for healthy adults. This report delineates vulnerable populations who may be at risk from caffeine exposure; describes caffeine exposure and risk of cardiovascular and other health effects on vulnerable populations, including additive effects with other ingredients and effects related to pre-existing conditions; explores safe caffeine exposure levels for general and vulnerable populations; and identifies data gaps on caffeine stimulant effects.

Dietary supplements are widely available through a rapidly expanding market of products commonly advertised as beneficial for health, performance enhancement, and disease prevention. Given the importance and frequent evaluation of physical performance and health as a criteria to join and remain in the military, the use of these products by military personnel has raised concern regarding over-all and long-term efficacy and safety. This evaluation is especially difficult, as many of these supplements contain multiple ingredients, have a changing composition over time, or are used intermittently at doses difficult to measure. This book analyzes the patterns of dietary supplement use among military personnel, examines published reviews of the scientific evidence, and identifies those dietary supplements that are beneficial and/or warrant concern due to risks to health or performance. The book also recommends a system to monitor adverse health effects and a framework to identify the need for active management of dietary supplements by military personnel. Military policy makers, personnel, and recruits will find this book useful, as will nutritionists, athletes, and others working in strenuous environments.

Scientific and commercial interest in the field of nutritional neuroscience has grown immensely over the last decade. Today, a broad range of dietary supplements, foods for weight loss, functional foods, nutraceuticals, and medical foods are widely available. Many of these products are marketed for their effects on behavior or brain function, which relates directly to nutritional neuroscience and raises issues regarding their safety and efficacy. The only comprehensive reference on this subject, Nutritional Neuroscience discusses the relationship of nutrition to behavior and neuroscience. Following a review of fundamental issues and methods, the book covers the effects of macronutrients and micronutrients on brain function and behavior. Chapters are devoted to the effects of a wide range of foods, specific nutrients, food constituents, and food additives on cognitive behavior and development. The final section examines foods and supplements that modulate brain function. With a broad range of information presented in a simple and straightforward manner, this book provides an ideal introduction to nutritional neuroscience. The depth of information and comprehensive coverage also make this an essential reference for specialists involved in nutrition, neuroscience, pharmacology, psychology, and related disciplines.

The virtually universal popularity of caffeine, together with concerns about its potential pathogenic effects, have made it one of the most extensively studied drugs in history. However, despite the massive scientific literature on this important substance, most reviews have either focused on limited areas of study or been produced in popular form