Is still water better for you than sparkling water?

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Still or sparkling? It’s a question you’ll commonly hear in a café or restaurant and you probably have a preference. But is there any difference for your health?

If you love the fizz, here’s why you don’t have to pass on the sparkling water.

Brent Hofacker/Shutterstock

What makes my water sparkle?

This article specifically focuses on comparing still filtered water to carbonated filtered water (called “sparkling water” or “unflavoured seltzer”). Soda water, mineral water, tonic water and flavoured water are similar, but not the same product.

The bubbles in sparkling water are created by adding carbon dioxide to filtered water. It reacts to produce carbonic acid, which makes sparkling water more acidic (a pH of about 3.5) than still (closer to neutral, with a pH around 6.5-8.5).

Which drink is healthiest?

Water is the best way to hydrate our bodies. Research shows when it comes to hydration, still and sparkling water are equally effective.

Some people believe water is healthier when it comes from a sealed bottle. But in Australia, tap water is monitored very carefully. Unlike bottled water, it also has the added benefit of fluoride, which can help protect young children against tooth decay and cavities.

Sparkling or still water is always better than artificially sweetened flavoured drinks or juices.

Isn’t soda water bad for my teeth and bones?

There’s no evidence sparkling water damages your bones. While drinking a lot of soft drinks is linked to increased fractures, this is largely due to their association with higher rates of obesity.

Sparkling water is more acidic than still water, and acidity can soften the teeth’s enamel. Usually this is not something to be too worried about, unless it is mixed with sugar or citrus, which has much higher levels of acidity and can harm teeth.

However, if you grind your teeth often, the softening could enhance the damage it causes. If you’re undertaking a home whitening process, sparkling water might discolour your teeth.

In most other cases, it would take a lot of sparkling water to pass by the teeth, for a long period of time, to cause any noticeable damage.

How does drinking water affect digestion?

There is a misconception drinking water (of any kind) with a meal is bad for digestion.

While theoretically water could dilute stomach acid (which breaks down food), the practice of drinking it doesn’t appear to have any negative effect. Your digestive system simply adapts to the consistency of the meal.

Some people do find that carbonated beverages cause some stomach upset. This is due to the build-up of gases, which can cause bloating, cramping and discomfort. For people with an overactive bladder, the acidity might also aggravate the urinary system.

Interestingly, the fizzy “buzz” you feel in your mouth from sparkling water fades the more you drink it.

Is cold water harder to digest?

You’ve chosen still or sparkling water. What about its temperature?

There are surprisingly few studies about the effect of drinking cold water compared to room temperature. There is some evidence colder water (at two degrees Celsius) might inhibit gastric contractions and slow down digestion. Ice water may constrict blood vessels and cause cramping.

However other research suggests drinking cold water might temporarily boost metabolism, as the body needs to expend energy to warm it up to body temperature. This effect is minimal and unlikely to lead to significant weight loss.

Which water wins?

The bottom line is water is essential, hydrates us and has countless other health benefits. Water, with carbonated bubbles or without, will always be the healthiest drink to choose.

And if you’re concerned about any impact to teeth enamel, one trick is to follow sparkling water with a glass of still. This helps rinse the teeth and return your mouth’s acidity back to normal.

Christian Moro, Associate Professor of Science & Medicine, Bond University and Charlotte Phelps, Senior Teaching Fellow, Medical Program, Bond University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • Good Health From Head To Toe

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    It’s Q&A Day!

    Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!

    This newsletter has been growing a lot lately, and so have the questions/requests, and we love that! In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

    As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!

    So, no question/request too big or small

    Q: I am now in the “aging” population. A great concern for me is Alzheimers. My father had it and I am so worried. What is the latest research on prevention?

    Very important stuff! We wrote about this not long back:

    (one good thing to note is that while Alzheimer’s has a genetic component, it doesn’t appear to be hereditary per se. Still, good to be on top of these things, and it’s never too early to start with preventive measures!)

    Q: Foods that help build stronger bones and cut inflammation? Thank you!

    We’ve got you…

    For stronger bones / To cut inflammation

    That “stronger bones” article is about the benefits of collagen supplementation for bones, but there’s definitely more to say on the topic of stronger bones, so we’ll do a main feature on it sometime soon!

    Q: Veganism, staying mentally sharp, best exercises for weight gain?

    All great stuff! Let’s do a run-down:

    • Veganism? As a health and productivity newsletter, we’ll only be focusing veganism’s health considerations, but it does crop up from time to time! For example:
    • Staying mentally sharp? You might like the things-against-dementia pieces we linked to in the previous response!
      • It’s also worth noting that some kinds of dementia, such as Alzheimer’s, can begin the neurodegenerative process 20 years before symptoms show, and can be influenced by lifestyle choices 20 years before that, so it’s definitely never too early be on top of these things!
    • Best exercises for weight gain? We’ll do a main feature one of these days (filled with good science and evidence), but in few words meanwhile: core exercises, large muscle groups, heavy weights, few reps, build up slowly. Squats are King.

    Q: I am interested in the following: Aging, Exercise, Diet, Relationships, Purpose, Lowering Stress

    You’re going to love our Psychology Sunday editions of 10almonds! You might like some of these…

    Q: I’d like to know more about type 2 diabetic foot problems

    You probably know that the “foot problems” thing has less to do with the feet and more to do with blood and nerves. So, why the feet?

    The reason feet often get something like the worst of it, is because they are extremities, and in the case of blood sugars being too high for too long too often, they’re getting more damage as blood has to fight its way back up your body. Diabetic neuropathy happens when nerves are malnourished because the blood that should be keeping them healthy, is instead syrupy and sluggish.

    We’ll definitely do a main feature sometime soon on keeping blood sugars healthy, for both types of diabetes plus pre-diabetes and just general advice for all.

    In the meantime, here’s some very good advice on keeping your feet healthy in the context of diabetes. This one’s focussed on Type 1 Diabetes, but the advice goes for both:

    !

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  • What you need to know about FLiRT, an emerging group of COVID-19 variants

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    What you need to know

    • COVID-19 wastewater levels are currently low, but a recent group of variants called FLiRT is making headlines.
    • KP.2 is one of several FLiRT variants, and early lab tests suggest that it’s more infectious than JN.1.
    • Getting infected with any COVID-19 variant can cause severe illness, heart problems, and death.

    KP.2, a new COVID-19 variant, is now dominant in the United States. Lab tests suggest that it may be more infectious than JN.1, the variant that was dominant earlier this year.

    Fortunately, there’s good news: Current wastewater data shows that COVID-19 infection rates are low. Still, experts are closely watching KP.2 to see if it will lead to an uptick in infections.

    Read on to learn more about KP.2 and how to stay informed about COVID-19 cases in your area.

    Where can I find data on COVID-19 cases in my area?

    Hospitals are no longer required to report COVID-19 hospital admissions or hospital capacity to the Department of Health and Human Services. However, wastewater-based epidemiology (WBE) estimates the number of COVID-19 infections in a community based on the amount of COVID-19 viral particles detected in local wastewater.

    View this map of wastewater data from the CDC to visualize COVID-19 infection rates throughout the U.S., or look up COVID-19 wastewater trends in your state.

    What do we know so far about the new variant?

    Early lab tests suggest that KP.2—one of a group of emerging variants called FLiRT—is similar to the previously dominant variant, JN.1, but it may be more infectious. If you had JN.1, you may still get reinfected with KP.2, especially if it’s been several months or longer since your last COVID-19 infection.

    A CDC spokesperson said they have no reason to believe that KP.2 causes more severe illness than other variants. Experts are closely watching KP.2 to see if it will lead to an uptick in COVID-19 cases.

    How can I protect myself from COVID-19 variants?

    Staying up to date on COVID-19 vaccines reduces your risk of severe illness, long COVID, heart problems, and death. The CDC recommends that people 65 and older and immunocompromised people receive an additional dose of the updated COVID-19 vaccine this spring.

    Wearing a high-quality, well-fitting mask reduces your risk of contracting COVID-19 and spreading it to others. At indoor gatherings, improving ventilation by opening doors and windows, using high-efficiency particulate air (HEPA) filters, and building your own Corsi-Rosenthal box can also reduce the spread of COVID-19.

    This article first appeared on Public Good News and is republished here under a Creative Commons license.

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  • 28-Day FAST Start Day-by-Day – by Gin Stephens

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    We have previously reviewed Gin Stephens’ other book, “Fast. Feast. Repeat.”, so what’s so special about this one that it deserves reviewing too?

    This one is all about troubleshooting the pitfalls that many people find when taking up intermittent fasting.

    To be clear: the goal here is not a “28 days and yay you did it, put that behind you now”, but rather “28 days and you are now intermittently fasting easily each day and can keep it up without difficulty”. As for the difficulties that may arise early in the 28 days…

    Not just issues of willpower, but also the accidental breaks. For example, some artificial sweeteners, while zero-calorie, trigger an insulin response, which breaks the fast on the metabolic level (avoiding that is the whole point of IF). Lots of little tips like that peppered through the book help the reader to stop accidentally self-sabotaging their progress.

    The author does talk about psychological issues too, and also how it will feel different at first while the liver is adapting, than later when it has already depleted its glycogen reserves and the body must burn body fat instead. Information like that makes it easier to understand that some initial problems (hunger, getting “hangry”, feeling twitchy, or feeling light-headed) will last only a few weeks and then disappear.

    So, understanding things like that makes a big difference too.

    The style of the book is simple and clear pop-science, with lots of charts and bullet points and callout-boxes and the like; it makes for very easy reading, and very quick learning of all the salient points, of which there are many.

    Bottom line: if you’ve tried intermittent fasting but struggled to make it stick, this book can help you get to where you want to be.

    Click here to check out 28-Day FAST Start, and start!

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  • Is alcohol good or bad for you? Yes.
  • Antibiotics? Think Thrice

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Antibiotics: Useful Even Less Often Than Previously Believed (And Still Just As Dangerous)

    You probably already know that antibiotics shouldn’t be taken unless absolutely necessary. Not only does taking antibiotics frivolously increase antibiotic resistance (which is bad, and kills people), but also…

    It’s entirely possible for the antibiotics to not only not help, but instead wipe out your gut’s “good bacteria” that were keeping other things in check.

    Those “other things” can include fungi like Candida albicans.

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    And as for how that comes about, it’s like we said:

    See also: Candida albicans as a commensal and opportunistic pathogen in the intestine

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    And that’s just C. albicans, never mind things like C. diff. that can just outright kill you easily.

    We don’t have room to go into everything here, but you might like to check out:

    Four Ways Antibiotics Can Kill You

    It gets worse (now comes the new news)

    So, what are antibiotics good for? Surely, for clearing up chesty coughs, lower respiratory tract infections, right? It’s certainly one of the two things that antibiotics are most well-known for being good at and often necessary for (the other being preventing/treating sepsis, for example in serious and messy wounds).

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    A large, nationwide (US) observational study of people who sought treatment in primary or urgent care settings for lower respiratory tract infections found…

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    the use of antibiotics provided no measurable impact on the severity or duration of coughs even if a bacterial infection was present.

    Read for yourself:

    Antibiotics Not Associated with Shorter Duration or Reduced Severity of Acute Lower Respiratory Tract Infection

    And in the words of the lead author of that study,

    ❝Lower respiratory tract infections tend to have the potential to be more dangerous, since about 3% to 5% of these patients have pneumonia. But not everyone has easy access at an initial visit to an X-ray, which may be the reason clinicians still give antibiotics without any other evidence of a bacterial infection.❞

    ~ Dr. Daniel Merenstein

    So, what’s to be done about this? On a large scale, Dr. Merenstein recommends:

    ❝Serious cough symptoms and how to treat them properly needs to be studied more, perhaps in a randomized clinical trial as this study was observational and there haven’t been any randomized trials looking at this issue since about 2012.❞

    ~ Dr. Daniel Merenstein

    This does remind us that, while not a RCT, there is a good ongoing observational study that everyone with a smartphone can participate in:

    Dr. Peter Small’s medical AI: “The Cough Doctor”

    In the meantime, he advises that when COVID and SARS have been ruled out, then “basic symptom-relieving medications plus time brings a resolution to most people’s infections”.

    You can read a lot more detail here:

    Antibiotics aren’t effective for most lower tract respiratory infections

    In summary…

    Sometimes, antibiotics really are a necessary and life-saving medication. But most of the time they’re not, and given their great potential for harm, they may be best simultaneously viewed as the very dangerous threat they also are, and used only when those “heavy guns” are truly what’s required.

    Take care!

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  • Early Bird Or Night Owl? Genes vs Environment

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    A Sliding Slope?

    In Tuesday’s newsletter, we asked you how much control you believe we have over our sleep schedule, and got the above-depicted, below-described, set of responses:

    • 45% said “most people can control it; some people with sleep disorders cannot
    • 35% said “our genes predispose us to early/late, but we can slide it a bit
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    You may be wondering: what’s with those single-digit numbers in the graph there? And the answer is: Tuesday’s email didn’t go out at the usual time due to a scheduling mistake (sorry!), which is probably what affected the number of responses (poll response levels vary, but are usually a lot higher than this).

    Note: yes, this does mean most people who read our newsletter don’t vote. So, not to sound like a politician on the campaign trail, but… Your vote counts! We always love reading your comments when you add those, too—often they provide context that allow us to tailor what we focus on in our articles

    However, those are the responses we got, so here we are!

    What does the science say?

    Anyone can adjust their sleep with enough willpower: True or False?

    False, simply. It’s difficult for most people, but for many people with sleep disorders, it is outright impossible.

    In a battle of narcolepsy vs willpower, for example, no amount of willpower will stop the brain from switching to sleep mode when it thinks it’s time to sleep:

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    ~ Dr. Carrie Mahoney et al. (lightly edited for brevity)

    Source: The neurobiological basis of narcolepsy

    For further reading, especially if this applies to you or a loved one:

    Living with Narcolepsy: Current Management Strategies, Future Prospects, and Overlooked Real-Life Concerns

    Our genes predispose us to early/late, but we can slide it a bit: True or False?

    True! First, about our genes predisposing us:

    Genome-wide association analysis of 89,283 individuals identifies genetic variants associated with self-reporting of being a morning person

    …and also:

    Gene distinguishes early birds from night owls and helps predict time of death

    Now, as for the “can slide it a bit”, this is really just a function of the general categories of “early bird” and “night owl” spanning periods of time that allow for a few hours’ wiggle-room at either side.

    However, it is recommended to make any actual changes more gradually, with the Sleep Foundation going so far as to recommend 30 minutes, or even just 15 minutes, of change per day:

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    Going against our hardwired sleep schedule is a road to ruin: True or False?

    False, contextually. By this we mean: our “hardwired” sleep schedule is (for most of us), genetically predisposed but not predetermined.

    Also, genetic predispositions are not necessarily always good for us; one would not argue, for example, for avoiding going against a genetic predisposition to addiction.

    Some genetic predispositions are just plain bad for us, and genes can be a bit of a lottery.

    That said, we do recommend getting some insider knowledge (literally), by getting personal genomics tests done, if that’s a viable option for you, so you know what’s really a genetic trait (and what to do with that information) and what’s probably caused by something else (and what to do with that information):

    Genetic Testing: Health Benefits & Methods

    Take care!

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  • Better Sex Through Mindfulness – by Dr. Lori Brotto

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Female sexuality is such a taboo topic that, if one searches for (ob/gyn professor, women’s health research director, and psychologist) Dr. Brotto’s book on Google or Amazon, it suggests only “lori brotto mindfulness book”. So, for those brave enough to read a book that would have shocked Victorians, what does this one contain?

    The focus is on, as the title suggests, better sex, by and for women. That said, it’s mostly because typically women are more likely to experience the problems described in the book; it’s nothing actually intrinsic to womanhood. A man with the same problems could read this book and benefit just the same.

    While the book covers many possible problems between the sheets, the overarching theme is problems of the mind, such as:

    • Not getting into the mood in the first place
    • Losing the mood quickly and easily, such as by becoming distracted
    • Difficulty achieving orgasm even when mechanically everything’s delightful
    • Physical discomfort creating a barrier to enjoyment

    …and yes, that last one is in part mind-stuff too! Though Dr. Brotto isn’t arguing that mindfulness is a panacea, just an incredibly useful tool. And, it’s one she not only explains very well, but also explains from the position of a wealth of scientific evidence… Enough so, that we see a one-star Amazon reviewer from Canada complained that it was too well-referenced! For us, though, it’s what we like to see.

    Good science, presented clearly and usefully, giving practical tips that improve people’s lives.

    Bottom line: if you’ve ever lost the mood because you got distracted into thinking about taxes or that meeting on Tuesday, this is the book for you.

    Click here to check out Better Sex Through Mindfulness—you can thank us later!

    Don’t Forget…

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