Dr. Peter Attia on Very Low-Carb Performance

Dr. Peter AttiaDr. Peter Attia is a medical doctor, as well as a popular blogger and one of the founders of the Nutrition Science Initiative (NuSi).

Peter is an endurance athlete and has had a lifelong interest in health and nutrition.

Up until a few years ago, he used to believe in the old conventional wisdom of high-carb, low-fat eating in order to sustain peak athletic performance.

Over the years, despite massive amounts of exercise and eating a diet that was pretty much “perfect” by conventional standard, things started to go wrong.

He morphed from being lean to overweight and started developing symptoms of metabolic dysfunction: high triglycerides, low HDL, etc.

In the video below, Peter is interviewed by Dr. Andreas Eenfeldt.

He outlines the story of how he gradually transformed from a high-carb “conventional” diet to a low-carb, high-fat, moderate protein ketogenic diet, while drastically improving his health and his physical and mental performance.

  • On a low-carb, ketogenic diet, carbs need to be restricted, but consuming too much protein can also cause problems.
  • Excess protein can be turned into glucose and restricting protein may be necessary to get into nutritional ketosis.
  • Added sodium can alleviate many of the potential side effects (lightheadedness, physical performance, etc.) of a low-carb, ketogenic diet.
  • Individuals who are well keto-adapted often report improved brain function.
  • Athletes that are well adapted to ketosis can easily access stored body fat, which can lead to remarkable endurance performance.
  • Low-carb may not be as appropriate for athletes that function mostly anaerobically – sprinters, powerlifters, etc.

1 Comment

  1. Stanley Frank Young says:

    Always looking for better understanding!

    I am amazed that for years Peter was doing it one way…and then he tried new things…and found improvement.

    The Avalanche of sugar in every thing has led me to EXERCISE total control and I only buy whole foods. What a difference… and I have backed way off on the fruits… Much steadier energy… and no hunger pains… even at the 20 to 30 hour mark with just water.

    I have always had tremendous stamina… but now I can climb Green Springs fasted at the 43 hour mark… 10 times. It is a 4 mile loop with 250 feet of climbing. I would never have believed that I could finish a 100 mile ride at the 24 hour mark still feeling pretty decent.

    I spent so many years pounding sugar to keep going… following…? The conventional WISDOM!

    I am beyond stunned.

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