Fenugreek and Its Effects on Muscle Performance: A Systematic Review

Area of Science:

• Sports Science
• Nutritional Science
• Pharmacology

Background:

• Fenugreek extracts exhibit notable physiological and pharmacological effects.
• Existing literature suggests potential benefits for muscle performance.

Purpose of the Study:

• To conduct a scientific and comprehensive analysis of fenugreek extract's effects on muscle performance.
• To review randomized controlled trials (RCTs) investigating fenugreek's impact on exercise and athletic outcomes.

Main Methods:

• Systematic literature search adhering to PRISMA guidelines.
• Inclusion of six eligible randomized controlled trials (RCTs) from May 1981 to May 2021.
• Qualitative analysis of selected studies.

Main Results:

• Four RCTs indicated significant improvements in muscle strength, endurance, lean body mass, and reduced body fat.
• One study noted enhanced post-exercise muscle glycogen resynthesis, while another showed no significant effect.
• Fenugreek glycoside supplementation demonstrated anabolic and androgenic activity, positively influencing testosterone levels and performance.
• Combined use with creatine improved creatine uptake without high carbohydrate intake.
• No clinical side effects were reported during an eight-week resistance training period.

Conclusions:

• Fenugreek extracts show promise as a natural supplement and ergogenic aid for athletes.
• Potential benefits include enhanced muscle performance, strength, and recovery.
• Caution is advised regarding potential doping implications and risks of liver and kidney damage.