there’s an episode with a guy from the UFC training center and in it they mention a MMA who’s always on keto

The episode you are referring to is "Dr. Duncan French: How to Exercise for Strength Gains & Hormone Optimization | Huberman Lab #45." In this episode, Duncan French, who is the VP of Performance at the UFC Institute, discusses various topics including the use of ketogenic diets for MMA fighters. He mentions that certain fighters use a largely ketogenic diet, but they strategically fuel with carbohydrates around training sessions to maintain high-intensity performance 1.

In the episode titled "Dr. Andy Galpin: Optimal Nutrition & Supplementation for Fitness | Huberman Lab Guest Series", an MMA fighter who consistently follows a ketogenic diet is mentioned. Unfortunately, while the discussion covers various aspects of nutrition and fitness, specific details about this MMA fighter or further exploration of his diet regimen aren't provided in the clips available. If you need more detailed insights or have further inquiries about ketogenic diets in athletes, please let me know!

The MMA fighter mentioned by name in an episode with Duncan French is George St-Pierre. He was discussed in the context of adhering to a ketogenic diet year-round during the episode titled "Dr. Duncan French: How to Exercise for Strength Gains & Hormone Optimization | Huberman Lab #45".

In the episode discussing George St-Pierre's diet, it is mentioned that the ketogenic diet is medically relevant and particularly effective in treating conditions like epilepsy, due to its impact on brain metabolism. Specifically, the ketogenic diet shifts brain metabolism to predominantly ketone utilization rather than glucose. This alteration in metabolism increases the transmission of GABA (gamma-aminobutyric acid), an inhibitory neurotransmitter that reduces the electrical activity of neurons.

While this was not directly connected to George St-Pierre in the clip, it explains the potential neurological benefits of a ketogenic diet, which might relate to why an athlete like St-Pierre chooses to adhere to this type of diet year-round 1.

It seems there might be a mix-up or confusion. I couldn't find a person specifically named "Matt Brown" related to the Huberman Lab. Could you provide any additional context or specify the area of expertise, topic, or any relevant details that could help identify the right person or information?

Matt Brown, an MMA fighter, is mentioned in the Huberman Lab as someone who promotes and successfully follows a ketogenic diet, despite it not being the typical recommendation for high-performance athletes in high-intensity intermittent sports like MMA. This deviation from typical dietary advice exhibits the variability in how athletes can thrive on different nutrition plans. While discussing athlete nutrition, Duncan French emphasizes that, generally, high-intensity efforts require carbohydrate fueling, but there are exceptions like Matt Brown who find success with ketogenic approaches 1.