DEEP DIVE · CHAPTER 28
Hedonic Substitution
Dopamine fasting is unproven, and it cannot empty the tank: organs throughout the body make dopamine all the time. What the evidence supports instead is replacing a reward rather than just removing it, and the Chapter 28 Deep Dive lays out those studies.
One published article uses the term dopamine fasting, and it admits the practice is unproven. Your gut, your kidney, your pancreas and your immune cells are making the molecule right now, so there is nothing to fast from. I will show you what actually survives the evidence, what replaces a reward instead of just removing it, and the four things I change when a patient tells me they want to try this.
19 pages · 37 references, every one verified · written by Dr. Gurpreet Singh Padda, MD, MBA, MHP
Watch Chapter 28
The chapter on video — the same argument, with the figures and the studies on screen as they come up.
The receipts behind Chapter 28
The book makes the argument. This Deep Dive shows the evidence, claim by claim: the study, who was in it, the number and where it sits in the paper, what it does not show — and the questions to bring to your own physician. It is written to be shared with your doctor.
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Frequently asked questions
Does dopamine fasting work?
No. Dopamine fasting is unproven. One published article uses the term, and it admits the practice is unproven. It also cannot empty the tank, because organs throughout the body make dopamine all the time. What the evidence supports instead is replacing a reward rather than just removing it. The Chapter 28 Deep Dive lays out those studies, with 37 verified references.
Can you reset or detox your dopamine?
Not by fasting from it. Your gut, your kidney, your pancreas and your immune cells are making dopamine right now, so there is nothing to fast from. What survives the evidence is hedonic substitution: replacing a reward instead of just removing it. Chapter 28 of The Dopamine Brain explains the difference and shows the studies behind it.
What should you do instead of a dopamine detox?
Replace the reward instead of just cutting it out. Dr. Padda calls this hedonic substitution, and it is the approach the evidence supports. When a patient tells him they want to try dopamine fasting, there are four things he changes, and the Chapter 28 Deep Dive sets them out alongside the studies, in 19 pages written to share with your doctor.
Educational material, not medical advice. If you are in the St. Louis area and want this looked at properly, that is what the Addictionology Center is for.






