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Fish oil supplements linked to greater first-time heart attack risk in study: ‘Not universally good or bad'

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Fish oil supplements linked to greater first-time heart attack risk in study: ‘Not universally good or bad'

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Taking fish oil supplements could raise the risk of heart attack and stroke, a new study suggests.

Among healthy people, regular use of fish oil was found to make them more susceptible to developing heart disease and stroke for the first time, the study found.

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Among those who had existing heart disease, however, fish oil consumption was shown to slow the progression of cardiovascular disease and reduce the risk of mortality.

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Researchers analyzed nearly 12 years of data for more than 415,000 participants from the UK Biobank study; the participants ranged in age from 40 to 69.

“Regular use of fish oil supplements might be a risk factor for atrial fibrillation and stroke among the general population, but could be beneficial for progression of cardiovascular disease from atrial fibrillation to major adverse cardiovascular events, and from atrial fibrillation to death,” the researchers wrote in the study, which was published in The BMJ (British Medical Journal).

Taking fish oil supplements could raise the risk of heart attack and stroke among certain people, a new study suggests. (iStock)

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“Further studies are needed to determine the precise mechanisms for the development and prognosis of cardiovascular disease events with regular use of fish oil supplements.”

Study highlights ‘uncertainty,’ cardiologist says

Dr. Jim Liu, a cardiologist at The Ohio State University Wexner Medical Center, who was not involved in the study, pointed out that there has been conflicting data about whether or not fish oil or omega 3 fatty acids can help reduce the risk of cardiovascular disease.

“This is yet another study that reminds us there is still a lot that needs to be investigated when it comes to fish oil and heart disease.”

“This study appears to echo the same sentiment that there is still some uncertainty about their relation to heart health,” he told Fox News Digital. 

“Similar to previous studies, I think this study indicates that fish oil is not necessarily universally good or bad for all.”

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Whether or not fish oil is beneficial or harmful depends on an individual’s specific underlying health conditions, he said — such as a history of heart attack or atrial fibrillation, and on other factors such as dosing and different formulations of the substance. 

Fish oil pills

“Further studies are needed to determine the precise mechanisms for the development and prognosis of cardiovascular disease events with regular use of fish oil supplements,” the authors of a new study wrote. (iStock)

“Previous studies have shown that certain formulations of fish oil can help reduce cardiovascular events in people with elevated triglycerides and previous cardiovascular events,” Liu noted.

“Overall, this is yet another study that reminds us that there is still a lot that needs to be investigated when it comes to fish oil and heart disease.”

Dietitians weigh risks and benefits

Tanya Freirich, a registered dietitian nutritionist in Charlotte, North Carolina, who practices as The Lupus Dietitian, also was not involved in the study but offered insights.

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“In this study, there was a slightly increased association between healthy people who took fish oil and developing atrial fibrillation and stroke, whereas for those people who took the fish oil after being diagnosed with cardiovascular disease, there was a slightly decreased association and risk of atrial fibrillation and stroke,” she told Fox News Digital.

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“Overall, I would say to take these results with a grain of salt, as it was a prospective study.”

A prospective study monitors what people self-report and their eventual health outcomes over time, she noted — versus a control study, where similar people are placed in two groups and one group takes the fish oil while the other does not. 

“We don’t know about the population of healthy participants and why they decided to take fish oil,” Freirich said. 

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Woman eating salmon

A registered dietitian recommended that most people get their omega 3s from food sources such as salmon, sardines, tuna, ground flaxseed, chia seeds, walnuts and almonds.  (iStock)

“Perhaps they have a family history of heart disease, or other lifestyle features that are contributing to their risk of developing atrial fibrillation and stroke outside of the fish oil supplement.”

As a registered dietitian, Freirich said she recommends most people get their omega 3s from food sources such as salmon, sardines, tuna, ground flaxseed, chia seeds, walnuts and almonds. 

“Making small changes to your diet over time can have big benefits in reducing your overall cardiovascular risk.”

“Many people do not get enough omega 3 fatty acids in their diet, and this can be a great way to consume healthy fats while also benefiting from protein and sources of fiber,” she said.

When preparing meals, replacing a serving of red meat with fatty fish can promote heart health by decreasing the intake of saturated fats and increasing the intake of omega 3s, according to Freirich. 

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Woman taking supplements

“Always discuss your supplement use with your medical care providers, as some may be unnecessary or even increase your risk for poor health outcomes,” said one expert.  (iStock)

“Making small changes to your diet over time can have big benefits in reducing your overall cardiovascular risk,” she advised.

“Always discuss your supplement use with your medical care providers, as some may be unnecessary or even increase your risk for poor health outcomes.”

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Michelle Routhenstein, a New York-based preventive cardiology dietitian at EntirelyNourished.com, agreed that prior research has indicated that taking high doses of fish oil supplements could potentially elevate the risk of atrial fibrillation — while regularly consuming fatty fish four to five times a week may lower that risk. 

Heart doctor with patient

To determine the potential benefits of fish oil and the appropriate dosage, experts recommended consulting with a registered dietitian specializing in heart disease. (iStock)

“We need to recognize that when it comes to fish oil — and many other foods and supplements — more or a concentrated dose isn’t necessarily better,” Routhenstein, who was not involved in the study, told Fox News Digital. 

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“It is also important to note that not all fish oil supplements are created equal. Factors like dosage, quality and additional ingredients can influence cardiovascular health outcomes.”

To determine the potential benefits of fish oil and the appropriate dosage, Routhenstein recommended consulting with a registered dietitian specializing in heart disease.

Fox News Digital reached out to the study researchers for more detail, as well as several manufacturers of fish oil supplements requesting comment on the findings.

For more Health articles, visit www.foxnews.com/health

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For diabetes patients, inhaled insulin is shown just as effective as injections and pumps

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For diabetes patients, inhaled insulin is shown just as effective as injections and pumps

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Most of the 38 million people living with diabetes in the U.S. use daily injections or insulin pumps to keep glucose at safe levels — but new research suggests that a third option could be just as effective.

In a study led by Dr. Irl B. Hirsch, M.D., medical director of the Diabetes Care Center of the University of Washington Medical Center, an inhaled form of insulin — similar to an asthma inhaler — worked just as well as injections or pumps to control type 1 diabetes.

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The research was presented last week at the American Diabetes Association (ADA)’s 84th Scientific Sessions in Orlando, Florida.

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The clinical trial tested a product called Afrezza, an inhaled insulin made by MannKind Corporation in California. 

Afrezza, the only inhaled insulin on the market, has been available since getting FDA approval in June 2014.

An inhaled form of insulin worked just as well as injections or pumps to control type 1 diabetes in a recent study. (iStock/MannKind)

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Benefits of a third option

“In those with type 1 diabetes, insulin is required for survival,” Hirsch told Fox News Digital in an interview. 

“With continuous glucose sensing, glucose control has been dramatically improved — but not everyone reaches the target with multiple injections or pumps, and there are many pros and cons with each therapy,” he said.

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With pumps, people must wear the device, which can lead to skin problems

They also have to purchase extra accessories.

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Blood glucose levels can also drop with exercise, Hirsch warned, which can be problematic. 

Afrezza inhaler

Afrezza, an inhaled insulin pictured here, is made by MannKind Corporation in California.  (MannKind)

“Injections overall can be more convenient for some, but they don’t do as well as pump patients,” he said.

With Afrezza, the product is inhaled into the lungs before meals, and the fast-acting insulin minimizes the glucose spike often seen after eating, Hirsch noted.

“Patients with type 1 diabetes should consider this as another option for their mealtime insulin, and talk to their doctor about this choice.”

During the 17-week study, researchers evaluated the results of 141 adults who were assigned to either use the Afrezza inhaler or continue with traditional methods of injection or pump delivery.

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At the 17-week mark, all participants switched to the inhaler for another 13 weeks.

Dr. Irl B. Hirsch

Dr. Irl B. Hirsch, M.D., medical director of the Diabetes Care Center of the University of Washington Medical Center, led the new study. (MannKind)

All groups were assessed with continuous glucose monitoring at the start of the study, at 17 weeks and again at 30 weeks.

Among the inhaled insulin group, 30% of participants reached their target glucose levels (less than 7% blood sugar) compared to 17% of the people using injections and pumps.

There was no difference in hypoglycemia (low blood sugar) between the groups.

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“In general, there was no difference in our primary endpoint, HbA1c, a reflection of average blood sugar,” Hirsch said. 

“But that alone is misleading — many patients did better with their glucose control, while others did worse.”

Afrezza inhaler

With Afrezza, the product is inhaled into the lungs before meals, and the fast-acting insulin minimizes the glucose spike often seen after eating, a doctor said. (MannKind)

“The point is, inhaling insulin isn’t for everyone, but some did better than they did on their pumps.”

The people who saw the best results inhaled insulin between meals and at bedtime, Hirsch added.

                             

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At the end of the study, more than half of the participants said they would opt to stay on the inhaled insulin therapy.

“The biggest takeaway is that patients with type 1 diabetes should consider this as another option for their mealtime insulin, and talk to their doctor about this choice,” he recommended.

‘Adds value’

The American Diabetes Association acknowledged the promise of the study findings in an email to Fox News Digital.

“We look forward to our Scientific Sessions every year to see data like the INHALE-3 study’s findings, which have the potential to expand diabetes care,” Raveendhara Bannuru, M.D., PhD, the ADA’s vice president of medical affairs and quality improvement outcomes in Boston, Massachusetts, told Fox News Digital via email.

diabetes CGM

“With continuous glucose sensing, glucose control has been dramatically improved,” a doctor told Fox News Digital. (iStock)

“We are hopeful for the continuous development of alternative insulin delivery methods that could offer options for people living with diabetes,” the group also said in the statement.

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“The INHALE-3 trial demonstrated that inhaled insulin, combined with insulin degludec, effectively reduces A1c levels without increasing hypoglycemia or weight gain in people with type 1 diabetes. This adds value to the options in insulin therapy.”

Potential risks and limitations

While more people met their glycemic targets with Afrezza, some subjects saw worse readings when switching from usual methods to inhaled insulin — “potentially due to missing doses of inhaled insulin during the day and/or underdosing going into bedtime,” the researchers wrote.

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“We didn’t see any concerns,” Hirsch said when asked about side effects. 

“As expected, a few people coughed immediately when dosing their insulin, but no major concerns were seen and everyone continued on their inhaled insulin.”

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Insulin injection

“Not everyone reaches the target with multiple injections or pumps, and there are many pros and cons with each therapy,” a doctor said. (iStock)

The most common side effects noted in the study were hypoglycemia, cough and throat pain or irritation. 

Afrezza has been linked to a risk of acute bronchospasm in patients with chronic lung disease, such as asthma or COPD, according to the manufacturer.

“Inhaling insulin isn’t for everyone, but some did better than they did on their pumps.”

Before starting Afrezza, patients should see a doctor for a physical examination and testing to measure lung function.

Patients who smoke or who recently quit smoking should not take the inhaled medication.

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Fox News Digital reached out to MannKind requesting additional comment.

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Surgeon general declares firearm violence in America a public health crisis

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Surgeon general declares firearm violence in America a public health crisis

The United States surgeon general is declaring gun violence a national public health crisis. 

Surgeon General Vivek Murthy issued an advisory on Tuesday stating that firearm-related violence and its immediate psychological ramifications on victims and bystanders has severely compromised public health.

“Today, for the first time in the history of our office, I am issuing a Surgeon General’s Advisory on firearm violence,” Murthy said in a video announcement. “It outlines the urgent threat firearm violence poses to the health and well-being of our country.”

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U.S. Surgeon General Dr. Vivek Murthy released a special advisory on firearm violence on Tuesday, calling gun-related incidents a public health crisis. (Nathan Congleton/NBC via Getty Images)

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“As a doctor, I’ve seen the consequences of firearm violence up close and the lives of the patients that cared for over the years,” the surgeon general continued. “These are moms and dads, sons and daughters, all of whom were robbed of their physical and mental health by senseless acts of violence.”

The advisory states that 54% of adults in America have experienced a firearm-related incident. These experiences with firearm violence include individuals who have been threatened with a gun (21%), lost a family member in a gun-related death (19%), witnessed a shooting (17%), and been wounded by a firearm (4%).

The 54% figure also includes adults who have fired a gun in self-defense (4%). The gun-related death statistic includes those who committed suicide via firearm.

The report noted different demographics are affected in different ways by gun violence. 

Black individuals suffer the highest rate of gun deaths. American Indians, Alaskan Natives, elderly white people, and military veterans are at the highest risk suicide by firearm.

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“Beyond these precious lives that are lost to firearm violence, there are wider ripples of harm to those who are injured, who witnessed the incidents, who live in urban and rural communities where such violence takes place, and who constantly read and hear about firearm violence,” Murthy stated.

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Vivek Murthy

Murthy wrote in the report that the direct casualties of gun violence are compounded by psychological ramifications inflicted on victims and bystanders. (Tom Williams/CQ-Roll Call, Inc via Getty Images)

He added, “The collective trauma and fear that Americans are experiencing is contributing to the mental health challenges that we are facing today. Nearly 6 in 10 U.S. adults say they worry about a loved one being a victim of firearm violence.”

The public advisory on firearm-related violence is the first document of its kind released by the Surgeon General’s Office.

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