Who is Conor McGregor's nutritionist?

January 5, 2026 •

3 min read

According to ESPN, Conor McGregor has utilized the expertise of multiple nutritionists throughout his career to ensure peak physical condition for his fights. Most recently, Tristin Kennedy has taken on the role, though McGregor famously worked with renowned nutritionist George Lockhart in the past. The specific approach to who is Conor McGregor's nutritionist depends heavily on the preparation phase, from building muscle mass to the demanding process of weight cutting.

Quick Summary

Conor McGregor's nutritional strategy has been guided by different experts. Tristin Kennedy is his current nutritionist, implementing a disciplined, seven-day-a-week regimen. Previously, George Lockhart was instrumental in optimizing McGregor's weight cuts and performance. The dietary plans are meticulously tailored to meet the extreme demands of MMA training and competition.

Key Points

Tristin Kennedy: Is Conor McGregor's current nutritionist, providing comprehensive, day-to-day dietary management.
George Lockhart: Previously worked with McGregor, notably assisting with critical weight cuts and macro timing strategies.
Personalized Plans: Nutrition for McGregor is highly individualized, based on data from his training sessions and metabolic rate.
Whole Foods: His diet emphasizes high-quality, whole foods like lean protein, complex carbohydrates, and fresh vegetables.
Strategic Timing: Macronutrient intake is carefully timed around workouts to optimize energy levels and recovery.
Seven-Day Commitment: Kennedy's work is described as a seven-day-a-week commitment to ensure consistent nutritional discipline.

Who Is Conor McGregor's Nutritionist?

Conor McGregor's nutritional support has been provided by different experts over the course of his career, primarily Tristin Kennedy and George Lockhart. George Lockhart was a key figure early on, particularly for his expertise in weight cutting, while Tristin Kennedy has served as his primary nutritionist more recently. Kennedy, with a master's in food, nutrition, and health, now oversees McGregor's dietary plans.

Tristin Kennedy: The Current Nutritionist

Tristin Kennedy is currently responsible for McGregor's daily nutrition, providing comprehensive and data-driven oversight. This includes creating daily meal plans, suggesting supplements, and preparing meals. Kennedy collaborates closely with McGregor, using data from training sessions to develop highly individualized and specific plans that adapt to his metabolic rate and activity levels. The diet under Kennedy emphasizes a balanced intake of high-quality macronutrients and micronutrients through diverse, wholesome foods. Key components include lean proteins (chicken, fish, beef), complex carbohydrates (rice, potatoes), and healthy fats and antioxidants from nuts, avocados, and vegetables.

George Lockhart: The Weight-Cutting Expert

Before Kennedy, George Lockhart was a crucial member of McGregor's team, renowned for his skills in weight cutting. Lockhart, a former US Marine, is highly respected in combat sports nutrition. He was particularly involved in McGregor's cut to 145 lbs for the Jose Aldo fight. Lockhart's methods focused on consistent and timed macronutrient intake to manage energy and reduce cravings. His approach included consuming protein pre-workout to control insulin and saving carbohydrates for post-workout recovery. He also stressed the importance of proper hydration and strategic water manipulation during fight week.

Comparison of Nutritionist Approaches


Feature	Tristin Kennedy's Approach	George Lockhart's Approach
Primary Focus	Daily, holistic, and data-driven performance nutrition	Expert weight cutting and macro timing for fight camp
Engagement	Seven-days-a-week oversight, including meal prep and training observation	Specializes in managing fight-week diet and weight manipulation
Carbohydrates	Emphasizes good complex carbs throughout the day	Reserves most carbs for post-workout recovery
Nutrient Sourcing	Wide variety of wholesome foods, multiple sources	Specific timing of proteins, fats, and select fruits

The Role of Nutrition in McGregor's Performance

Nutrition plays a vital role in McGregor's ability to compete across different weight classes (featherweight, lightweight, and welterweight). The detailed nutritional plans from both Kennedy and Lockhart have been essential for managing weight, providing energy for training and recovery, and ensuring peak physical condition for fights.

Conclusion

Conor McGregor's success is supported by the dedicated work of his nutritionists. The shift from weight-cut specialist George Lockhart to the comprehensive daily guidance of Tristin Kennedy reflects an evolution in his athletic strategy. Both have been crucial in optimizing his diet for the demands of high-level combat sports.

Visit The Mac Life for more details on Tristin Kennedy's role.

Key principles from McGregor's nutritionists

Individualization: Plans are customized based on training and metabolic data.
Whole Foods Focus: Prioritizes lean protein, complex carbs, and fresh produce.
Strategic Macronutrient Timing: Manages nutrient intake around training sessions for energy.
Consistent Hydration: Emphasizes staying properly hydrated.
Data-Driven Adjustments: Diet plans are continuously refined based on observations.

The importance of a balanced diet for athletes

Protein for Recovery: Supports muscle repair.
Carbs for Energy: Provides sustained energy for workouts.
Fats for Health: Important for overall health and reducing inflammation.
Micronutrients for Function: Ensures proper bodily processes.
Hydration for Performance: Prevents fatigue and aids recovery.

Frequently Asked Questions

Conor McGregor's current nutritionist is Tristin Kennedy, who has been working with him since before the Donald Cerrone fight in 2020.

Yes, George Lockhart worked with Conor McGregor earlier in his career, particularly assisting with weight-cutting for major fights like the one against Jose Aldo.

Tristin Kennedy holds a master's in food, nutrition, and health from University College Dublin, providing him with a strong academic background for his work.

Kennedy prescribes a balanced diet focusing on lean protein sources (chicken, fish, beef), complex carbohydrates (potatoes, rice), healthy fats, and a wide variety of vegetables and herbs.

Lockhart used strategic macro timing, reserving carbohydrates for post-workout to optimize energy and focused on proper hydration while carefully manipulating water intake leading up to weigh-ins.

McGregor's diet is dynamic and constantly adjusted by his nutritionist based on his training intensity, metabolic activity, and whether he is bulking or cutting weight.

McGregor consumes lean meats, fish, eggs, sweet potatoes, green vegetables, and fruits, often sourced from wholesome foods.

For an MMA fighter, a nutritionist is crucial for managing weight, ensuring adequate energy for intense training, and optimizing recovery, all while maintaining peak physical condition for competition.