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How to Solve the "Eating Stress" of Bodybuilders: Amino Acids as a Choice to Optimize Muscle Synthesis During the Bulking Phase
2026.05.19Bodybuilding, which aims to maximize muscle size and create a beautiful physique, involves not only training but also a meticulously calculated nutritional strategy. Especially during the "bulking phase," when the body is being enlarged, a massive amount of food must be consumed, leading to situations where eating is not what one wants and food becomes a source of stress...
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For those who want to enhance the effects of muscle training with "small amounts, high efficiency," whey protein with a high concentration of EAAs is recommended.
2023.09.11This book explains the important nutrition and rest required for efficiently increasing muscle mass and strength through strength training. It also introduces the characteristics of whey protein, which is rich in essential amino acids, how to take it effectively even in small amounts, and its relationship to fat loss.
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For athletes who "want to eat but can't"—amino acids: a way to streamline body building—
2026.03.30Athletes train every day, striving to build stronger bodies. However, for athletes who engage in high-intensity exercises such as basketball, handball, soccer, rugby, and American football, the problem is, "I need to eat a lot, but I can't..."
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Building a Body for Athletes Who "Can't Eat" Efficiently with Amino Acids / Professor Jun Yasuda, Lecturer, Department of Health Management, Faculty of Health Sciences, Tokai University
2026.03.30In ball sports such as basketball, soccer, and rugby, physical conditioning is an essential element. However, intense training and subsequent protein intake can lead to neglecting proper nutrition, causing many to struggle with building their physique...
A must-read for bodybuilders! Reduce dietary stress during bulking phase with amino acids / Jun Yasuda, Lecturer, Department of Health Management, Faculty of Health Sciences, Tokai University
Bodybuilders create physiques that are almost at their peak through rigorous training and meticulous nutritional strategies. To support this muscle building, they inevitably consume enormous amounts of food, but the stress involved is by no means small.
This time, we spoke with Professor Jun Yasuda, who provides nutritional support to the prestigious Tokai University Bodybuilding Club, a team that has won the All Japan Intercollegiate Bodybuilding Championships, about reducing the nutritional burden on bodybuilders. From the unexpected side effects of protein intake to ways to use amino acids to reduce "eating stress," this is a must-read for bodybuilders struggling with their diet.
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For those who want to enhance the effects of muscle training with "small amounts, high efficiency," try "EAA-rich whey protein."
Professor Jun Yasuda, Lecturer, Department of Health Management, Faculty of Health Sciences, Tokai University
PhD (Sports and Health Sciences), Registered Dietitian, NSCA-CSCS
After completing her doctoral studies at the Graduate School of Sport and Health Science, Ritsumeikan University, she worked as a researcher at the National Institute of Sports Science, among other positions, before assuming her current position in 2023. Her research focuses on maintaining and increasing muscle mass, encompassing exercise and nutritional strategies, and she implements evidence-based findings into nutritional support in competitive sports settings.
Masanao Taniyama, Marketing Group, Sports & Health Nutrition Department, Ajinomoto Co., Inc.
During his student years, he dedicated himself to American football, experiencing firsthand the importance of physical training and conditioning. After joining the company in 2013, he worked in sales of household products before assuming his current position in 2019. He is involved in the development of sports supplements, utilizing his knowledge from competitive sports and research in product design.