Alkaline water has entered the conversation as an arguable alternative to regular drinking water.

Numerous celebrities, including Gwyneth Paltrow, Mark Wahlberg and Jennifer Aniston, have touted alkaline water in brand campaigns — but is there a real benefit? Experts report that the science is uncertain.

Bottled water that’s sold as alkaline water may have added minerals like calcium and magnesium, which help the water reach an alkaline pH, according to Mayo Clinic. A pH of 7 is neutral, while a level greater than 7 is alkaline and less than 7 is acidic.

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Plain tap water has a lower pH than alkaline water, which has led some to claim that drinking alkaline water can neutralize acidity in the body.

There have also been claims that alkaline water can help prevent certain health conditions, like cancer and stroke, Mayo Clinic mentioned. Some studies have also shown that alkaline water may help slow bone loss, perhaps due to the added calcium.

Other research suggests that alkaline water combined with a plant-based Mediterranean diet may help relieve acid reflux. Several studies have suggested that alkaline water alone could improve symptoms of gastroesophageal reflux disease (GERD).

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Mayo Clinic stressed that more research is necessary to support these claims and to confirm whether these benefits continue over time.

In a Harvard Medical School publication, Howard E. LeWine, MD, chief medical editor of Harvard Health Publishing, confirmed that benefits potentially exist, but only temporarily.

“Because the fluid in the stomach is so acidic, once regular or alkaline water gets down to your stomach, there will be little difference in the resulting stomach fluid pH,” he wrote.

“You could potentially raise the stomach fluid pH by drinking a lot of alkaline water, but it would only be temporary. Even if you drank enough alkaline water to slightly raise the pH of your blood, your kidneys would quickly go into action to rebalance your blood pH.”

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As an example, alkaline water may provide heartburn relief from acid reflux, but the effects would not be long-lasting. LeWine considered that there are “much more effective options,” such as antacids.

The doctor warned that drinking alkaline water could be dangerous for people who take PPIs, or stomach acid production blockers.

Mayo Clinic added that alkaline water has been linked to safety concerns, especially when the water’s pH is higher than 9.8. This can lead to high levels of potassium in the blood, a condition known as hyperkalemia.

LeWine expressed the same concern that alkaline water “might result in an increased blood pH, which can alter the normal blood levels of chemicals like potassium, especially [for people with] kidney disease.”

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In an interview with Fox News Digital, certified holistic nutritionist Robin DeCicco confirmed that there is “no strong evidence” that alkaline water provides “meaningful long-term health benefits.”

While infusing the water with minerals can be beneficial for reducing acidity in the body, the best way to do so is by following “foundational” dietary habits, according to the expert.

This includes eating meals based in real foods and eliminating excess sugar, caffeine, processed and fried foods, as they can “aggravate acidity in the body,” she said.

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“Vegetables, fruit, good fats, like the omega-3 fats, lean protein, fiber — those are the things that really help to keep acid out of the body,” DeCicco added.

For those who have acid reflux complications, she recommends seeing a doctor and adopting helpful habits like eating consistently throughout the day, not lying down after eating and avoiding highly acidic foods.

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In the wake of NASCAR star Kyle Busch’s death from sepsis, a Virginia Beach mother who almost lost her life to the deadly condition is sharing her harrowing experience to raise awareness.

In 2015, Audrey Leishman was a healthy 31-year-old when she thought she’d come down with the flu. Instead, her condition spiraled into a severe case of sepsis that left her in the ICU for 10 days, including five days in a medically induced coma. 

Now recovered, Leishman – who is married to professional golfer Marc Leishman – is dedicated to raising awareness about the condition through her nonprofit organization, the Begin Again Foundation. She has also written a children’s book aimed at helping families recognize the warning signs.

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Sudden decline

Leishman’ ordeal began when she began to feel ill one evening while caring for her sons, then 19 months and 3 years old, while her husband was traveling.

“I had never actually had the flu before, but I was achy, feverish and cold. And so I thought, this seems like the flu,” she told Fox News Digital during an on-camera interview.

As the days went on, Leishman started to feel worse. Her fever spiked higher and she developed severe stomach issues.

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“At one point, I actually thought I was going a little bit crazy, because my right elbow and left big toe started hurting – it was the most random thing. I hadn’t injured myself,” she said. “I was really confused as to what was going on.”

When Leishman became too weak to care for her sons and started to have nosebleeds, her friend insisted that she see a doctor.

At Urgent Care, Leishman’s temperature and heart rate were abnormally high, and her blood pressure was dangerously low. She was taken by ambulance to the emergency room.

“I was a very, very sick person.”

While today’s hospitals have “come a long way” toward sepsis awareness and recognition, Leishman noted that wasn’t the case in 2015.

“They took a very long time to figure out what was going wrong with me,” she said, adding that doctors at first thought she was afflicted with autoimmune diseases. 

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“They kept testing me for different things. Eventually, they admitted me, and I was in the ICU for a total of 10 days – five of which were in a medically induced coma.”

The sepsis ultimately turned into acute respiratory distress syndrome.

“I very much remember not being able to breathe,” Leishman recalled. “That was by far the scariest part. It got to the point where I had to pause between every word to take a breath, and it was basically like sipping air.”

At one point, she later learned, there was a “good chance” she wasn’t going to wake up from the coma.

“When I finally did wake up, it was quite the process of relearning how to walk again, dealing with at-home physical therapy and being on a PICC line (peripherally inserted central catheter),” Leishman shared.

The first year of recovery was “very difficult,” she said. “My immune system was so compromised that I was sick constantly.”

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Today, Leishman says she is healthy but that her memory “is not what it used to be” and that she gets fatigued more often.

The original cause of her sepsis remains unclear, she said, but it may have been linked to her recent IUD removal.

“I did have the diagnosis of toxic shock syndrome, but I also had tonsillitis, strep throat, a UTI and pneumonia,” she said. “I was a very, very sick person.”

What to know about sepsis

In severe cases, infection can spread into the bloodstream, triggering the widespread, life-threatening inflammatory response that is sepsis. 

It can quickly lead to tissue damage, organ failure and death if not treated right away, according to Fox News senior medical analyst Dr. Marc Siegel.

“The body reacts by making inflammatory chemicals. It’s the immune system revving up … but it can hurt more than help,” he previously told Fox News Digital.

Leishman explained the response with an analogy: “Instead of your body sending out the Navy SEALs, it sends out the entire U.S. armed forces.”

As sepsis worsens, it can cause a drop in blood pressure and interfere with the delivery of oxygen to the body’s tissues, potentially leading to lactic acidosis — a dangerous buildup of lactic acid in the bloodstream.

“Instead of your body sending out the Navy SEALs, it sends out the entire U.S. Armed Forces.”

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Organ failure is a serious risk, particularly affecting the kidneys, Siegel warned.

“The kidneys fail, toxins from the kidneys build up, blood pressure goes down, fever goes up, the lungs fail — something called ARDS,” he said.

Acute respiratory distress syndrome (ARDS) occurs when inflammation causes fluid to leak into the lungs, making it difficult for oxygen to reach the bloodstream.

Common warning signs of sepsis can include high fever, confusion, rapid breathing, extreme weakness, low blood pressure, fast heart rate and bluish or mottled skin, per the CDC. Patients can also feel very cold and experience extreme pain, Leishman added.

Turning survival into a mission

After Leishman was discharged from the hospital, she was struck by how little people knew about sepsis, which led her to start the Begin Again Foundation.

“I had never heard of sepsis – and I realized that was why I almost died,” she shared. “If I had known what the symptoms were and what to look out for, I would have sought treatment earlier.”

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The expensive medical costs – for everything from home healthcare to antibiotics to a walker and other equipment – were also shocking. “I learned that sepsis is the most expensive hospitalization bill there is,” Leishman said. “I remember thinking, ‘What if we didn’t have the money to afford this?’”

“In a time when people are struggling, if I can help ease that burden – even just the tiniest bit, so they can focus more on the recovery – it is my absolute passion and honor to continue to do that. And that is the main focus of the organization.”

Leishman’s children’s book, “Katie Koala’s Biggest Bite,” focuses on a young girl who gets injured and becomes ill, then her mother takes her to the doctor soon enough to catch sepsis before it becomes life-threatening.

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“My goal for this book is that it will be in both little hands and their parents’ bigger hands … and that by reading this story, they learn about what sepsis is and what symptoms to look out for,” she said.

“I’ve read too many stories of parents who did seek treatment, who took their child to the doctor, and were told it was just a virus.”

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Leishman said the simplest thing parents can do is to ask the doctor: “Could this be sepsis?”

“Just asking that question could lead them on the path to run a different lab panel or look at the symptoms in a different way,” she added.

“I’ve read too many stories of parents who took their child to the doctor and were told it was just a virus.”

Every hour that sepsis goes untreated, the mortality rate increases by up to 8%, Leishman noted.

“Time truly is the most important thing – and getting that early treatment can prevent you from even being hospitalized.”

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One of the most important things people should know, according to Leishman, is that sepsis can happen from any infection. 

“The most common causes are respiratory infections, UTIs and kidney stones, but it can happen from a cut. It can happen from strep throat, the flu,” she warned.