Mayim Bialik says she had 'nightmare' symptoms after GLP-1 injection, including 'explosive' diarrhea
Mayim Bialik says she had 'nightmare' symptoms after GLP-1 injection, including 'explosive' diarrhea
Mekishana PierreSat, June 6, 2026 at 3:00 PM UTC
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Mayim Bialik at the 82nd Venice International Film Festival on Aug. 31, 2025Credit: Elisabetta A. Villa/GettyKey Points -
Mayim Bialik says she experienced severe side effects after taking one GLP-1 injection at the recommendation of her doctor.
"For the first two days, I ate maybe one cup of rice and half a banana," she wrote. "I couldn't even keep electrolyte drinks down."
Bialik shared that the "nightmare" made her reflect on a complicated relationship between body image and Hollywood's propensity to pressure many to lose weight.
Mayim Bialik is opening up about her recent "nightmare" experience with GLP-1 medication, and how the experience made her reflect on Hollywood's effect on body image.
In an essay published by The Free Press on Friday, the actress told readers that she suffered from severe side effects after taking a single dose of a GLP-1 medication at the recommendation of doctors who suggested it might help alleviate symptoms she experienced due to autoimmune conditions she has dealt with for years.
"I went on a weight-loss drug because a doctor told me it might help ease symptoms I've struggled with for basically my entire adult life," Bialik wrote. "I was diagnosed with my first autoimmune condition—Graves' disease—at the height of my health, when I was 23... Twenty-five years, four unexplained hernias, and four exploratory surgeries later, I was well past perimenopause and drowning in symptoms I couldn't explain: full-body rashes and welts, severe histamine reactions to foods and smells, palpitations, hourly wake-ups for an entire year, crying jags alternating with crippling depression."
Bialik was then met with "string of diagnoses" that she saw as "just a label for a larger breakdown that no single specialist could quite explain." They included connective tissue disease, mast cell activation syndrome (MCAS), Sjögren's syndrome, and dysautonomia.
Mayim Bialik attends 'Gladiator II' premiere on Nov. 18, 2024Credit: LISA O'CONNOR/AFP via Getty
After years of trying various treatments, Bialik said three separate doctors recommended a GLP-1 medication because " the drugs have shown promise in reducing the systemic inflammation that drives autoimmune conditions."
Hoping it might offer relief, she agreed to try it, but what she detailed that followed was far worse than she anticipated.
"I took one shot of the lowest dose of a synthetic GLP-1, and to say I had an adverse reaction would be somewhat of an understatement," Bialik recalled. "Explosive, uncontrollable diarrhea. Sulfur burps so violent they left me afraid to open my mouth in public. Sneezing attacks every time I tried to eat or drink--which apparently has a name, snatiation. Cramping. Bloating. Full-body aching, as though I had the flu. And an inability to keep down even small sips of water without sprinting to the bathroom with yet more explosive diarrhea. More than three times, I didn't make it."
At one point, she said she required IV fluids after becoming unable to stay hydrated.
"For the first two days, I ate maybe one cup of rice and half a banana," she wrote. "I couldn't even keep electrolyte drinks down."
But what Bialik said she was most surprised by was when her doctor told her that severe side effects were not uncommon. She wrote that she later learned that nausea, vomiting and diarrhea are among the most frequently reported side effects associated with GLP-1 medication.
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The Mayo Clinic notes that while GLP-1 medications have helped many patients (often with diabetes) lose weight, researchers continue to study potential long-term effects, including loss of muscle mass, reduced bone density and other health impacts that may emerge with prolonged use.
The actress emphasized that she didn't initially seek out the medication to lose weight, but the experience triggered some long-held and complicated feelings regarding body image that remained within her after growing up in the spotlight as a child star.
Bialik —who rose to fame as the titular quirky character known for her floppy hats on Blossom —wrote that she was largely unconcerned about her weight as a child, but began gaining weight after being prescribed medication as a teenager. Over time, she developed what she described as a sense of shame around her body and a disordered relationship with food.
"By the time social media arrived — with its fixation on being thinner, more toned, more surgically perfected — that pressure tipped into a disordered relationship with food that I have spent years trying to untangle," she wrote. And in the depth of her "misery" taking the GLP-1 medication, the actress acknowledged that "a piercing, devastating thought occurred to me: At least you might lose some weight."
She added, "Even when I was too sick to stand, drink water, or think straight, I was still chasing that dragon."
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Ultimately, Bialik decided not to continue taking the medication and gave away the remaining doses she had.
Bialik wrote that the experience gave her a new appreciation for people living with chronic gastrointestinal conditions, and reflected on the complicated realization about body image and the pressure to lose weight, particularly in Hollywood. She wrote that social media is saturated with ads and testimonials on the weight loss effects of the drugs, including celebrities showing off noticeably thinner bodies on red carpets and magazine covers, highlighting the intense pressure many feel to become thinner.
"I caught a glimpse of my reflection, and I did not recoil," she wrote. "I did not see under my first chin that second chin on which I had been fixating for months—because it wasn't there. My cheekbones were visible. I gazed for a moment, flashed a Mona Lisa smile, and headed to the parking lot, stopping briefly to hike up my skirt, which had started to sag at my hips ever so slightly."
on Entertainment Weekly
Source: “AOL Entertainment”
