No. 1 Sugar Expert: 17 Seconds Of Pleasure Can Rewire Your Brain!
The Diary Of A CEO with Steven Bartlett
October 2, 2025
Dr. Robert Lustig, a world-leading expert on sugar addiction, metabolism, ultra-processed food, and artificial sweeteners, reveals how they fuel obesity, dementia, dopamine overload, and addiction - and the dangers of RFK Jr.’s health approach.
Speakers Steven Bartlett, Robert Lustig
TopicsBusinessSociety & Culture
Steven Bartlett (0:00)
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Robert Lustig (0:56)
People say, Alzheimer's is genetic garbage. That genetic component is only 5%. So that means 95% of Alzheimer's risk is environmental, air pollution, microplastics, ultra-processed food. And a paper just came out showing that sweetener consumption correlates with dementia. And we think we know why.
Steven Bartlett (1:15)
And you've not talked about this publicly yet.
Robert Lustig (1:17)
No, let's talk.
SPEAKER_3 (1:18)
Dr. Robert Lustig is a world-leading sugar expert who's teaching the world how to reclaim their health from the industry that profits off your vulnerability.
Robert Lustig (1:28)
73% of the items in the American grocery store are poisoned because sugar is hidden in all the foods. For instance, there's 262 names for sugar, and the food industry uses all of them because they knew when they added you buy more. But the problem is, it's providing people with a dopamine hit, and that dopamine is addictive. And that's when you actually have a biochemical and medical problem. And we have data to show that ultra-processed food has been associated with dementia, diabetes, cancer, every single mental health disease. So the question is, how can you buy healthy food and not be tempted by the bad stuff? So first, if a food has a label, it's a warning label. The second thing, if any food has a sugar in the first three ingredients, it's dessert. And then when they go to the store, don't go hungry.
Steven Bartlett (2:11)
And what about exercise?
Robert Lustig (2:13)
Well, it doesn't really impact your desire to reach for sugar. It has its own metabolic benefits. But if you think exercise is going to make you lose weight, you are deluded. And we can talk about that.
Steven Bartlett (2:24)
So with all of this in mind, if I've got a sugar problem or if I've got an addiction problem, what is the remedy?
Robert Lustig (2:29)
I will tell you that this is one of the things I did in my obesity clinic. So the only way you're going to be able to fix the problem is...
Steven Bartlett (2:38)
Just give me 30 seconds of your time. Two things I wanted to say. The first thing is a huge thank you for listening and tuning in to the show week after week. It means the world to all of us. And this really is a dream that we absolutely never had and couldn't have imagined getting to this place. But secondly, it's a dream where we feel like we're only just getting started. And if you enjoy what we do here, please join the 24% of people that listen to this podcast regularly and follow us on this app. Here's a promise I'm going to make to you. I'm going to do everything in my power to make this show as good as I can now and into the future. We're going to deliver the guests that you want me to speak to, and we're going to continue to keep doing all of the things you love about this show. Thank you.
Dr. Robert, good to have you back.
Robert Lustig (3:23)
Oh, my pleasure.
Steven Bartlett (3:24)
I am particularly fascinated by this term, hostage brain. I know you're in the early stages of working on a book about this subject, but for anyone that doesn't understand. So when I look at this word, the hostage brain, I think of all the times that I've been out of control. And when I say out of control, I'm going to let you define it, but when I say out of control, I mean, there's so many things I want to do as it relates to my health, my fitness, other aspects of my life, whether it's avoiding eating the cookie at 2 a.m. in a hotel room somewhere or other areas of my life where I want to have greater elements of control. What do you mean by the hostage brain?
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