
Gastric bypass surgery is a surgical procedure used to help individuals with severe obesity lose weight by altering their digestive system. It is one of the most common types of bariatric surgery.
In today’s insightful episode, we are joined by Marilyn Thayer, who shares her incredible story of how she embarked on a life-changing path through gastric bypass surgery. Marilyn’s journey begins here, where she successfully lost over a hundred pounds, gaining a new lease on life.
However, life is an ever-evolving journey, and unforeseen challenges can arise.
Marilyn’s story takes a unique turn as she candidly discusses how, over time, her life circumstances shifted, and the global pandemic further impacted her health and well-being. She found herself gradually regaining the weight she had worked so hard to release.
This realization prompted her to embark on a new chapter, one that extended beyond just altering the size of her stomach – it involved reshaping her thoughts and habits, particularly at the subconscious level.
In this episode, Marilyn shares the fascinating and motivational journey of not only opting for gastric bypass surgery but also using the power of hypnosis to achieve long-term, permanent weight release.
Whether you’re personally interested in this topic or know someone who may benefit from hearing Marilyn’s story, this episode promises to be a source of motivation and empowerment.
So, come on in to the Thin Thinking Podcast.
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If you’ve experienced weight regain after gastric bypass, you already know the scariest part isn’t the number on the scale—it’s the moment you realize, “Oh no… this could keep going.” You did the hard thing. You changed your body. You released the weight. And then, slowly, life happened—stress, routines, travel, the pandemic—and the scale started creeping back up.
In this Thin Thinking Podcast episode, Rita Black interviews Marilyn Thayer, who had Roux-en-Y gastric bypass, released over 100 pounds, and maintained for years… until she didn’t. Marilyn’s story is powerful because she doesn’t pretend surgery “failed.” She tells the truth: surgery changed her stomach, but long-term success required changing her thinking, identity, and habits—especially the subconscious patterns that made “special food” feel urgent and irresistible.
If you’ve been thinking, “Why can I crush goals in every other part of my life but not this?” you’re going to feel seen here—and you’ll leave with practical steps you can start using today.
Why does weight regain after gastric bypass happen—even when surgery “worked”?
Weight regain after gastric bypass often happens because surgery changes capacity, not conditioning—your old mental patterns can slowly rebuild your old behaviors.
Marilyn’s story starts where so many people start: the surgery worked. She released weight quickly—down to 138 pounds within about two years—and she learned the post-op rules that many bariatric programs teach: protein first, small portions, label-reading, separating drinking from eating, and staying aware of how certain foods (especially sugar and refined carbs) can hit hard.
But here’s the part people don’t say out loud enough:
Even when your stomach is smaller, your brain can still run the old scripts.
For Marilyn, one of the biggest scripts was what she called the “special opportunity” trap—when something delicious is available, her mind says: “This is my chance. Eat it now.” That can show up while traveling, at work, during celebrations, or even in quiet moments at home.
She also shared a key post-surgery reality: the farther you get from surgery, the easier it can become to “push the edges.” She explained how transgressions add up—not in a shameful way, but in a human way. You can gradually expand what you tolerate. You can start eating a little more, a little more often, a few more “extras”… and then suddenly you’re staring at a number you swore you’d never see again.
And that’s where the panic kicks in:
- “How did this happen?”
- “Am I going back?”
- “What is wrong with me?”
Nothing is “wrong” with you. This is what happens when the mind and habits don’t get the same level of attention as the body.
What did Marilyn’s Roux-en-Y journey teach her about the mind vs. the stomach?
Gastric bypass can create a powerful physical reset, but long-term weight mastery requires a mindset reset—because the brain can outlast the procedure.
Marilyn chose Roux-en-Y based on her doctor’s recommendation and felt reassured by her program’s education and risk context. What stood out most was something her bariatric team told the group directly:
They could do surgery on the body—but not on the mind.
Marilyn took that seriously, and she also noticed something important about consequences. She described how dizziness or weakness would show up when she broke her own rules (for example, going heavy on sugar or refined carbs). In other words, the surgery didn’t just restrict—it gave feedback.
That’s a big deal, because feedback is how you build mastery.
But feedback alone doesn’t build new identity. That part came later.
Marilyn also shared how she stabilized around 170 pounds for years and felt good there—healthy, “thin” compared to her prior life, and able to sustain it with lifestyle adjustments. That matters for anyone reading this who thinks maintenance has to look like perfection. It doesn’t. Maintenance can be a stable “range” where your life works.
Then her life changed again—and the old patterns resurfaced.
If you’ve ever wondered why you can understand weight loss intellectually yet still feel pulled back into old patterns, Episode 184 — I Get How to Lose Weight—So WHY Am I Stuck? dives deeper into how subconscious habits and identity can override even the strongest intentions.
How the pandemic triggered regain (and why that matters for your plan now)
Weight regain after bariatric surgery often follows a life disruption—because routines change faster than identity does.
Marilyn’s pandemic timing was unreal: her house sale closed four days before the pandemic was declared in North America. She and her husband were supposed to travel the world, but instead they came home after two days—and ended up living out of their van close to home.
Even when you’re trying to “be good,” disruption creates a perfect storm:
- less structure
- more isolation
- more inertia
- fewer natural movement cues
- more comfort-eating opportunities
- less accountability (because nobody’s seeing you)
Marilyn said she did well at first, then weighed in later and saw 180… then later 190. And what she did next is something many people feel but don’t articulate:
She wrote herself a letter—begging herself not to undo what she did in 2012.
That’s the moment so many people reach:
You’re not just afraid of gaining weight—you’re afraid of losing yourself again.
This is also where people get trapped in all-or-nothing thinking:
- “I need to diet hard.”
- “I need to fix this fast.”
- “I messed up, so I might as well keep going.”
Marilyn refused that trap. She didn’t want another diet. She wanted a conscious lifestyle—a real system she could live inside.
What to do when you refuse to diet—but still need to change
If you don’t want a diet, you need a strategy: habits, awareness, and a reason strong enough to outlast cravings.
Marilyn asked a question that hit like a lightning bolt:
How can I want this so much—and still not do it?
She described herself as capable, confident, successful in her career… but weight felt like the one area that kept slipping through her fingers. So she did something that works for high-functioning people who are tired of feeling “broken”:
She treated her weight mastery like a job.
She spent hours a day reflecting, learning, following trails—EFT, habit change programs, inspiration—anything that could help her build the internal structure she needed. She wasn’t looking for motivation. She was looking for roots.
And she didn’t force food changes until she was ready to commit. That’s key. Because white-knuckling your way into a plan you resent is how you create rebellion later.
Then she took one simple action (inspired by something Matthew McConaughey said): “Just do something.”
For her, that “something” was drinking water again—something she had successfully used hypnosis for in the past.
That one win mattered, because it rebuilt her belief:
“I can change a habit.”
From there, she returned to one of the most powerful post-bariatric success tools: tracking. Not as punishment—as awareness. Her bariatric team had told her the most successful long-term patients were often still tracking years later, because writing it down makes your brain connect dots you’d otherwise miss.
Why tracking and daily weigh-ins can rebuild trust with yourself
Daily data turns the scale from a judge into a dashboard—so you can course-correct early instead of “waking up” 10 pounds heavier.
Marilyn had resisted daily weigh-ins because it felt like pressure. But she made a sharp observation:
It wasn’t the scale that surprised her—it was the gaps in awareness.
If you don’t weigh for months, weight regain doesn’t show up as a trend. It shows up as a shock. And shock creates panic. Panic creates extremes. Extremes create burnout.
So she joined what Rita called “the once-a-day club,” because daily repetition builds the habit faster than weekly. Marilyn admitted she got frustrated and even stopped for a month—then came back. That’s what mastery looks like: not perfect behavior, but returning to the practice.
The deeper shift was this: Marilyn stopped treating tools like tracking and weighing as “diet trauma” and started using them as neutral, empowering feedback.
That’s the identity move:
- Old identity: “The scale proves I’m failing.”
- New identity: “The scale gives me information.”
Marilyn also described the moment she became confident she could get back on track. She referenced a metaphor Rita shares (from Jeff): if you slip, you’re not “four towns over.” You’re just in the ditch. You can get back on the road.
That confidence is everything, because it prevents the spiral:
- “I blew it, so I’m done.”
- “I can’t trust myself.”
- “I’ll start Monday.”
Instead, her mindset became:
“Back on track. Period.”
How hypnosis supported Marilyn’s long-term weight mastery shift
Hypnosis can help when you’re doing the right actions—but your subconscious keeps pulling you toward the old rewards.
Marilyn didn’t come to hypnosis because she thought it was magic. She came because she had evidence: she had used hypnosis successfully before to build a water-drinking habit.
This time, she wanted support with the craving loop:
- the urge for chips, cookies, ice cream
- the “special opportunity” feeling
- the pressure to eat it now
She found Shift Hypnosis through a free session, then chose the self-study process. One of her biggest takeaways was that Shift wasn’t “just hypnosis”—it was a full set of skills packaged into a lifestyle: mindset, habits, community, and ongoing support.
And she loved the mantras—because mantras are mental reps. They train the brain.
Two that changed her internal world:
- “Freedom from the struggle is more important than the weight release.”
Marilyn said the hardest part of being overweight wasn’t just physical—it was the constant mental cloud: the background thought of needing to lose weight. - “You think this is hard? That’s not hard.”
She reframed “hard” away from resisting cravings and toward the real pain:
- waking up disappointed in yourself
- not finding clothes that fit
- physical pain when walking
- living under that “veil” of self-judgment
That’s pain used correctly—not to shame you, but to tell the truth about what your current pattern costs you.
She also named a classic mastery distinction:
what you want now vs. what you want most.
This is where long-term change becomes real: you stop negotiating with the immediate impulse, and you start aligning with the future you actually want to live inside.
What to do first if you feel stuck after bariatric surgery
The first step isn’t a stricter plan—it’s reconnecting with yourself so your “why” becomes stronger than your cravings.
When Rita asked Marilyn what she’d recommend to someone feeling lost, Marilyn didn’t say “cut carbs” or “do more cardio.” She said something that sounds simple—but it’s the foundation:
Take a break from the weight-loss frenzy and reconnect with yourself.
Not to avoid change—so you can choose change from a grounded place.
Marilyn suggested:
- get inspired (Tony Robbins wasn’t the point—the spark was the point)
- get clear on what you’re really solving
- identify root causes (stress, inertia, isolation, habits)
- rebuild motivation based on meaning, not punishment
- use gratitude and self-connection to stabilize your mindset
Because when you’re connected to yourself, you stop trying to “fix” your body and start leading your life.
FAQ
1) Is weight regain after gastric bypass normal?
Some regain can be common over time, especially after the initial “honeymoon” period. What matters most is catching it early and returning to habits that support maintenance.
2) Why do I crave carbs and sugar more years after Roux-en-Y?
As time passes, tolerance and portion capacity can shift, and older reward pathways can reassert themselves—especially during stress or routine disruption. Awareness tools (tracking, weighing) help you see patterns sooner.
3) Do I need to go back on a diet to stop weight regain?
Not necessarily. Many people regain because structure and habits loosen—not because they “need” a new diet. A sustainable plan focuses on identity, routines, and consistent feedback.
4) Can hypnosis help with weight regain after bariatric surgery?
Hypnosis may help support mindset change and habit change, especially when cravings and subconscious patterns are driving choices. It works best alongside practical tools like tracking and self-monitoring.
5) Should I weigh myself every day after bariatric surgery?
Daily weigh-ins can help you spot trends early and reduce “surprise regain.” The goal is using the scale as neutral data, not as a measure of worth.
6) What’s the best mindset shift if I feel like I’m “starting over”?
Focus on returning, not restarting. A slip doesn’t erase your progress. The skill is getting back on track quickly—without drama, shame, or all-or-nothing thinking.
Conclusion
Marilyn’s story is the reminder so many people need: your surgery wasn’t the end of the journey—it was one chapter. The long-term win comes when you build the internal structure that outlasts stress, travel, holidays, and life curveballs.
If you’re dealing with weight regain after gastric bypass, you don’t need more self-criticism. You need clarity, a strategy, and a way to retrain the patterns that keep pulling you back into the struggle.
Because the real goal isn’t just a smaller number.
It’s waking up without that mental cloud—without the constant fight—feeling steady in your choices and confident you can course-correct whenever life shifts.
If you found this episode helpful, you might also enjoy this related Thin Thinking episode:
If you found this episode helpful, you might also enjoy this related Thin Thinking episode: