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Common vitamin in everyday foods may control speed of digestion, study says

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Common vitamin in everyday foods may control speed of digestion, study says

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A common vitamin found in everyday foods may play a role in how often people go to the bathroom, according to a large new study.

Researchers found evidence that vitamin B1, also known as thiamine, is linked to gut motility, which is the process that moves food through the digestive system.

The international team — led by Mauro D’Amato, a professor of medical genetics at LUM University and a research professor at CIC bioGUNE — analyzed genetic and health data from more than 268,000 people of European and East Asian ancestry, according to a press release.

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Participants reported how frequently they went to the bathroom, which researchers used as a practical measure of gut motility.

“We used genetics to build a roadmap of biological pathways that set the gut’s pace. What stood out was how strongly the data pointed to vitamin B1 metabolism, alongside established mechanisms,” first author Dr. Cristian Diaz-Muñoz, a postdoctoral researcher in the Gastrointestinal Genetics Lab at CIC bioGUNE, located in the Bizkaia Science and Technology Park in Spain, said in the release.

Researchers found evidence that vitamin B1, also known as thiamine, is linked to gut motility, which is the process that moves food through the digestive system. (iStock)

B1, also known as thiamine, is linked to gut motility, which is the process that moves food through the digestive system. By scanning millions of genetic markers, the team identified 21 genetic regions tied to how often people had bowel movements, including several that had not previously been connected to digestive function.

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Many of the signals pointed to pathways already known to be important for digestion, like bile acid metabolism and nerve signaling, which control the rhythmic contractions of intestinal muscles, the release stated.

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The most unexpected finding involved genes linked to thiamine metabolism. Two genes in particular, which help to transport and regulate vitamin B1 in the body, showed strong associations with stool frequency.

The team scanned millions of genetic markers to identify DNA associated with differences in stool frequency.  (iStock)

To explore whether this translated into everyday behavior, the researchers examined dietary data from nearly 100,000 participants in the UK Biobank.

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They found that people who consumed higher amounts of vitamin B1 tended to have more frequent bowel movements.

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However, this relationship wasn’t seen in every case. The effect changed depending on a person’s genetic makeup, suggesting that genes are involved in the body’s processing of the vitamin.

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Vitamin B1 plays a central role in energy metabolism and nerve function, including the nerves and muscles that coordinate movement in the gut, according to the National Institutes of Health.

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Study limitations

The study, which was published in the scientific journal Gut, did have some limitations.

Frequency is an indirect measure of gut motility and does not capture stool consistency, discomfort or other symptoms relevant to digestive disorders, the researchers acknowledged.

Two genes in particular, which help transport and regulate vitamin B1 in the body, showed strong associations with stool frequency. (iStock)

The study also relied on self-reported dietary data, which can be imprecise.

Genetic associations do not prove cause and effect, the researchers noted. 

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The results do not conclusively show that taking vitamin B1 supplements will change bowel habits, nor do they establish the biological pathway through which thiamine might influence digestion.

People experiencing digestive issues should consult a doctor for guidance.

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Greater weight loss promised by higher-dose Wegovy shot, now approved by FDA

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Greater weight loss promised by higher-dose Wegovy shot, now approved by FDA

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The U.S. Food and Drug Administration announced on Thursday its approval of a new, higher-dose Wegovy (semaglutide) injection.

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The 7.2 mg dosage, called Wegovy HD, is intended for weight loss and long-term weight loss maintenance for adult patients. It is triple the previous maximum dose of 2.4 mg.

This marks the fourth approval in the FDA’s National Priority Voucher pilot program, which “seeks to expedite approval of applications that address critical national health priorities,” according to FDA Commissioner Dr. Martin Makary.

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“The new FDA is moving with unprecedented efficiency on products that advance national priorities,” he said in a press release. “Today’s approval is another demonstration of what the FDA can accomplish when we try bold new things.”

The U.S. Food and Drug Administration announced on Thursday its approval of a new, higher-dose Wegovy (semaglutide) injection. (Michael Siluk/UCG/Universal Images Group via Getty Images)

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The higher-dose GLP-1 is indicated to “reduce excess body weight and maintain weight reduction long-term in adults with obesity, or overweight with at least one weight-related condition,” per the FDA’s statement.

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“The approval of a new higher dose will provide adult patients with an additional therapeutic option, offering the potential for greater weight loss,” the agency stated.

The FDA’s approval, granted to drugmaker Novo Nordisk, was supported by clinical data that found higher doses resulted in additional average weight reduction compared to previous dosing. 

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Higher-dose patients with both obesity and type 2 diabetes saw similar lowering of blood sugar compared to the lower dose, the agency noted.

The safety profile is consistent with the known side effects of semaglutide, which commonly include gastrointestinal reactions like nausea, vomiting, diarrhea, constipation and abdominal pain.

Wegovy HD (7.2 mg) is triple the dosage compared to the previous maximum dose of 2.4 mg. (Steve Christo – Corbis/Corbis via Getty Images)

Skin sensitivity, pain or burning occurred more frequently with higher doses of Wegovy, but generally resolved on their own or with dose reduction, the FDA reported. The agency is investigating these adverse effects.

The FDA warned that Wegovy should not be used by patients with a personal or family history of medullary thyroid carcinoma (a type of thyroid cancer) or who have multiple endocrine neoplasia syndrome type 2 (a rare inherited genetic disorder that causes tumors to develop in certain hormone-producing glands). All patients should see a doctor for guidance on proper use.

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Jamey Millar, executive vice president of U.S. operations for Novo Nordisk, commented on this approval in a press release.

“We are excited to bring Wegovy HD injection to adults with obesity who are looking for powerful weight loss, as no other weight-loss medicine has been studied to show superiority to Wegovy HD,” he said. 

Millar also noted that Wegovy has been shown to reduce the risk of events such as stroke, heart attack or cardiovascular death in those who also have known heart disease.

A weight-loss expert warned that Wegovy HD should be used only for obesity management. (iStock)

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Dr. Peter Balazs, a hormone and weight-loss specialist practicing in New York and New Jersey, reflected on results of the STEP UP clinical trial, on which the drug’s approval was based.

Patients taking the higher dose experienced an average weight loss of 20.7% compared to about 16% on the standard dose, the doctor noted. About one-third lost 25% or more of their body weight.

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“For patients who start on 2.4 mg and then hit a frustrating plateau, or for those with a very high baseline BMI who may need a stronger metabolic push, this creates a legitimate, evidence-based escalation path rather than forcing an early switch to another drug class,” Balazs, who was not involved in the study, told Fox News Digital.

“That said, I think this is an interesting approval, but I do not expect it to dramatically reshape the GLP-1 landscape,” he went on. “It gives Novo Nordisk an opportunity to remain competitive on efficacy while it continues developing next-generation therapies.”

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“This creates a legitimate, evidence-based escalation path.”

“Other drugs have already shown greater efficacy in prior studies, and the broader GLP-1 space is likely to see much more significant change as new molecules enter the market.”

Balazs called the higher dosage a “major jump,” noting that the incidences of stomach- and skin-related side effects at this higher dose are “meaningful.”

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“This approval is for obesity management, not diabetes treatment,” the expert emphasized. “For patients with type 2 diabetes, currently approved semaglutide dosing remains lower unless the primary treatment goal is weight loss under the obesity indication.”

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Fox News Digital reached out to the FDA for comment.

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March Madness sparks surprising surge in sexual procedure for men

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March Madness sparks surprising surge in sexual procedure for men

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For some men, March Madness isn’t just about brackets — it’s also prime time for a vasectomy.

Previous research has shown that demand for the procedure tends to spike during the NCAA Division I men’s and women’s college basketball tournaments, which are held every spring.

Some surgeons have agreed that this is a real phenomenon, largely because the steady stream of games offers the perfect activity for men recovering on the couch.

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A vasectomy is a simple surgical procedure for men that blocks the vas deferens, the tube that transports sperm, serving as a permanent form of contraception.

Recovery typically takes a few days to a week, with doctors recommending rest for 48 hours and light activity soon after.

Previous research has shown that demand for vasectomies tends to spike during the NCAA Division I men’s and women’s college basketball tournaments, which are held every spring. (iStock)

David Gentile, MD, chief of the department of urology at Highland Hospital, recently spoke to the University of Rochester Medical Center about the uptick in vasectomies during March Madness.

“It’s a great excuse to watch without interruption.”

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“We tell patients they should plan on going home and putting their feet up after a vasectomy, so timing the procedure to watch some games while you recover works well,” he said. 

“And it’s a great excuse to watch without interruption, as you won’t be able to do physical labor around the house while you’re recovering.”

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Jim Dupree, MD, associate professor of urology at Michigan Medicine, has also spoken about the trend.

“Major sporting events are a popular time for men to schedule a vasectomy because we advise them to take it easy for two to three days after the procedure,” he said in a press release for Michigan Medicine.

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A vasectomy is a simple surgical procedure for men that blocks the vas deferens, the tube that transports sperm, serving as a permanent form of contraception. (iStock)

“For most men, this means sitting on the couch in front of their television, and sporting events offer them something to watch while resting.”

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Yet another surgeon, Dr. Ali Dabaja, director of male reproductive and sexual medicine at the Vattikuti Urology Institute at Henry Ford Hospital in Detroit, Michigan, weighed in on the topic in 2024.

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“After a vasectomy, we ask men to rest, not to lift anything heavy, and to go back to light duties during that week. So, timing the procedure for watching some games while you recover works well, and it’s a great excuse to watch March Madness without interruption,” he told the Urology Care Foundation.

“Historically, we have usually seen a rise in vasectomy consultations and vasectomies during March Madness,” he went on. “Other urology offices have reported a rise in vasectomies between 20% to 40%.”

“After a vasectomy, we ask men to rest, not to lift anything heavy, and to go back to light duties during that week, a surgeon said. (iStock)

A 2018 study published in the journal Urology found that March was one of the higher-volume months for vasectomy procedures, but the highest peaks were actually later in the year, particularly November and December.

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There were some limitations to that study, primarily that the monthly variation was observational, and the data lacked context of patients’ behaviors and scheduling.

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Wegovy Pill Side Effects To Watch for and How It Compares to Injections

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Wegovy Pill Side Effects To Watch for and How It Compares to Injections


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Wegovy Pill Side Effects To Watch for and How To Minimize Them




















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