Why Keto Works for Weight Loss But Fails for Performance with Dr. Mike T. Nelson
The Energy Blueprint Podcast
Ari Whitten
4.6 • 781 Ratings
🗓️ 23 August 2025
⏱️ 102 minutes
🧾️ Download transcript
Summary
In this episode, Dr. Mike T. Nelson pulls back the curtain on some common keto myths, including how it's connected to fat loss, athletic performance, and even ancestral eating patterns. You might be surprised to learn that smart athletes will do anything to win—except go keto.
In this myth-busting conversation, you'll discover why the high-fat-eating Inuit peoples probably weren't in ketosis, how keto can slash your power output by up to 8%, and why metabolic flexibility—not extreme diets—is the real key to optimal health.
After 20-plus years in the field, Dr. Nelson shares his unfiltered take on everything from exogenous ketones to the carbohydrate hypothesis of obesity, delivering the nuanced truth that diet influencers won't tell you.
Transcript
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| 0:00.0 | Hey, this is Ari. Welcome back to the Energy Blueprint podcast with me on the show for the second time is Dr. Mike T. Nelson. And he is an expert in health science more broadly and human performance, exercise physiology, |
| 0:24.3 | but he also has unique expertise in the ketogenic diet. And that is the subject of what we're |
| 0:30.3 | going to be talking about in this podcast. So the ketogenic diet is something that I think we're |
| 0:37.2 | a bit past sort of the peak trendiness of the ketogenic diet. But that I think we're a bit past sort of the peak |
| 0:38.7 | trendiness of the ketogenic diet, but a few years back it was sort of all the rage. |
| 0:44.3 | And for the last roughly 20 years or so, maybe 30 years, there's been a lot of claims made |
| 0:51.9 | about low carb or low carb high fat or ketogenic diets and what they do to us, |
| 0:59.2 | what they do to us physiologically, biochemically, how that translates into things like fat |
| 1:05.5 | loss. There's been claims made about sort of this is the ancestral human diet. This is the |
| 1:10.6 | diet that our hunter-gatherer ancestors used, |
| 1:14.9 | sort of were intended to eat or did eat and we are intended to to eat today because it is |
| 1:21.8 | biologically more appropriate for us. |
| 1:25.6 | Claims about it combating or reversing various medical conditions, claims of it enhancing energy |
| 1:33.9 | or exercise performance, all kinds of things like that. |
| 1:37.4 | And in this conversation, we are going to delve into each one of those topics and sort |
| 1:43.0 | of separate the wheat from the chaff, get into |
| 1:45.8 | what are the claims that are being made and what does the actual scientific evidence tell us |
| 1:51.3 | about the effects of the ketogenic diet on body composition and fat loss. In terms of, you know, |
| 1:58.7 | the calories versus insulin debate, calories versus is it calories or is it |
| 2:04.8 | carbs and insulin that is controlling body fatness? |
| 2:08.7 | We talk about exercise performance. |
| 2:11.3 | What are the effects of the ketogenic diet on exercise performance, different kinds of exercise, |
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