Harvard Doctor Reveals Why You Have Cravings and How to Stop Them | The Mel Robbins Podcast
Mel Robbins (host), Dr. Amy Shah (guest)
In this episode of The Mel Robbins Podcast, featuring Mel Robbins and Dr. Amy Shah, Harvard Doctor Reveals Why You Have Cravings and How to Stop Them | The Mel Robbins Podcast explores harvard-trained doctor explains cravings, dopamine, and food–mood connection Mel Robbins interviews Dr. Amy Shah about the science of hunger, appetite, and cravings, and why many of our eating patterns are driven less by willpower and more by brain chemistry and gut health.
Harvard-trained doctor explains cravings, dopamine, and food–mood connection
Mel Robbins interviews Dr. Amy Shah about the science of hunger, appetite, and cravings, and why many of our eating patterns are driven less by willpower and more by brain chemistry and gut health.
They distinguish true biological hunger from dopamine-driven cravings, explain how ultra-processed foods hijack the brain’s reward system, and show how this contributes to anxiety, depression, and constant snacking.
Dr. Shah details how gut bacteria, inflammation, hormones, sleep, and circadian rhythms interact to shape mood and appetite, arguing that food and lifestyle changes can be more effective than medication alone for many mental health issues.
The conversation ends with practical strategies—what and when to eat, how to rewire cravings in a few weeks, and how to improve mood by targeting dopamine, serotonin, and the gut microbiome.
Key Takeaways
Separate real hunger from cravings using simple internal tests.
Hunger is a biological need for nutrients (ghrelin-driven), cravings are dopamine-driven desires often appearing when you’re already full. ...
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Ultra-processed foods hijack your dopamine system and fuel addiction-like cycles.
Foods you couldn’t recreate in a kitchen (e. ...
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Improving diet and movement can outperform medication alone for depression.
A South Australian study found that changing diet, sleep, and exercise was about 1. ...
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You can rewire a sweet tooth in weeks by replacing—not just removing—rewards.
Dr. ...
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Target dopamine in the morning and serotonin at night with specific foods.
High-tyrosine, protein-rich foods like cottage cheese, yogurt, soy, nuts, and dairy can boost dopamine and alertness earlier in the day, while tryptophan plus complex carbs (e. ...
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Protect and feed your gut bacteria to improve mood and reduce inflammation.
Your GI tract hosts a ‘second brain’ of bacteria that produce dopamine, serotonin, and short-chain fatty acids; regularly eating fiber, fermented foods (yogurt, kimchi, sauerkraut, kombucha), and exercising strengthens beneficial microbes linked to better mental health.
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Sleep and timing of food dramatically change how hungry and out of control you feel.
Poor sleep reduces leptin (fullness) by about a third and increases cravings; late-night eating clashes with your circadian rhythm. ...
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Notable Quotes
“Food creates mood.”
— Dr. Amy Shah
“When you eat something that you badly crave, it's pleasure mixed with pain.”
— Dr. Amy Shah
“We live in a world where you could actually deplete your dopamine and you'll feel exhausted.”
— Dr. Amy Shah
“There is no pill that's gonna save you. There is no person that's gonna save you. You are gonna be the one who saves yourself.”
— Dr. Amy Shah
“If you wouldn't eat a bowl of vegetables right now, you're not hungry.”
— Dr. Amy Shah
Questions Answered in This Episode
How can someone realistically cut their ultra-processed food intake from 60–70% of calories to 30–40% without feeling deprived or socially isolated?
Mel Robbins interviews Dr. ...
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For people already on antidepressants or ADHD medication, how should they safely integrate these food and lifestyle changes with their current treatment?
They distinguish true biological hunger from dopamine-driven cravings, explain how ultra-processed foods hijack the brain’s reward system, and show how this contributes to anxiety, depression, and constant snacking.
Get the full analysis with uListen AI
What are some practical, low-cost ways for families and kids to get more fermented foods and fiber daily if they have limited access to fresh produce?
Dr. ...
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How should shift workers or people with irregular schedules adapt these circadian-based eating and light exposure recommendations?
The conversation ends with practical strategies—what and when to eat, how to rewire cravings in a few weeks, and how to improve mood by targeting dopamine, serotonin, and the gut microbiome.
Get the full analysis with uListen AI
Are there specific, evidence-backed probiotic strains or psychobiotic formulations you’d recommend now—or is focusing on whole, fermented foods still more effective than supplements?
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Transcript Preview
These are the bane of my existence. Oh, my God. Today, you and I are gonna get real about cravings, appetite, hunger, how to rein in the emotional eating. You're finished with dinner, you promise yourself you're not gonna eat something, and all of a sudden, boom, you gotta have ice cream. What is that about? Well, today, we're gonna dig deep into the science. You have been asking for Dr. Amy Shah to come on the show. Hey, it's your friend Mel, and welcome to the Mel Robbins podcast. Okay, today, you and I are gonna get real about cravings, appetite, hunger, how to rein in the emotional eating. For me personally, I've got, um, a bag here. These potato chips, these are black truffle potato chips that I'm holding right now. These are the bane of my existence. Oh, my God. My kids have introduced me to these things. I have to tell you, I have this insane craving for black truffle potato chips every single day around 2:00 in the afternoon. Um, I can plow through an entire bag of these things. I don't even know if I'm hungry or not. I just all of a sudden, boom, 2:00 hits, I have to have a potato chip, and I don't know if you've ever been stuck in that cycle of yo-yo dieting or you're finished with dinner, you promise yourself you're not gonna eat something, and all of a sudden, boom, you gotta have ice cream. What is that about? Well, today we're gonna dig deep into the science. Dr. Amy Shah is a double board certified doctor. She received her training from Cornell, she did a residency at Harvard, and a fellowship at Columbia. She's an expert on intermittent fasting, food allergies, hormones, and you guessed it, hunger, cravings, appetite. In fact, you have been asking for Dr. Amy Shah to come on the show. Her latest book, I'm So F***ing Hungry: Why We Crave What We Crave and What to Do About It. Dr. Amy Shah is here to tell us what to do about it. Dr. Amy, it is such a pleasure to meet you.
Ah, such a pleasure to be here and to meet you.
One of the reasons why I wanted to talk to you, Dr. Amy, because there's a lot of noise on TikTok, there's a lot of noise on social media, there are a lot of "wellness experts" that got themselves in shape and they have a lot of important things to say, but you are a m- you're a licensed and trained nutritionist with Ivy League degrees and you're also a medical doctor, and you understand not just nutrition as a lifestyle, but you understand nutrition and the science of nutrition. And so, when I'm listening to somebody who's a wellness expert who has figured this out in their life, I listen to them differently than I listen to a medical doctor-
Mm-hmm.
... who is figuring this out in her own life, who is also a nutritionist and understands it from the inside out. And so I'm thrilled that you're here, and I want to start with... So, thank you.
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