How often should you really weigh yourself?

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Few topics are more debated in health than the value of the humble bathroom scale. Some experts advocate daily self-weigh-ins to promote accountability for weight management, particularly when we’re following a diet and exercise program to lose weight.

Others suggest ditching self-weigh-ins altogether, arguing they can trigger negative psychological responses and unhealthy behaviours when we don’t like, or understand, the number we see on the scale.

Many, like me, recommend using scales to weigh yourself weekly, even when we’re not trying to lose weight. Here’s why.

Diva Plavalaguna/Pexels

1. Weighing weekly helps you manage your weight

Research confirms regular self-weighing is an effective weight loss and management strategy, primarily because it helps increase awareness of our current weight and any changes.

A systematic review of 12 studies found participants who weighed themselves weekly or daily over several months lost 1–3 BMI (body mass index) units more and regained less weight than participants who didn’t weight themselves frequently. The weight-loss benefit was evident with weekly weighing; there was no added benefit with daily weighing.

Two people cross the road
Weighing regularly means we know when our weight changes. Andres Ayrton/Pexels

Self-weigh-ins are an essential tool for weight management as we age. Adults tend to gain weight progressively through middle age. While the average weight gain is typically between 0.5–1kg per year, this modest accumulation of weight can lead to obesity over time. Weekly weighing and keeping track of the results helps avoid unnecessary weight gain.

Tracking our weight can also help identify medical issues early. Dramatic changes in weight can be an early sign of some conditions, including problems with our thyroid, digestion and diabetes.

2. Weekly weighing accounts for normal fluctuations

Our body weight can fluctuate within a single day and across the days of the week. Studies show body weight fluctuates by 0.35% within the week and it’s typically higher after the weekend.

Daily and day-to-day body weight fluctuations have several causes, many linked to our body’s water content. The more common causes include:

The type of food we’ve consumed

When we’ve eaten a dinner higher in carbohydrates, we’ll weigh more the next day. This change is a result of our bodies temporarily carrying more water. We retain 3–4 grams of water per gram of carbohydrate consumed to store the energy we take from carbs.

Our water content also increases when we consume foods higher in salt. Our bodies try to maintain a balance of sodium and water. When the concentration of salt in our bloodstream increases, a mechanism is triggered to restore balance by retaining water to dilute the excess salt.

Bowl of pasta
The morning after a big pasta dinner, we’ll carry more water weight. Dana Tentis/Pexels

Our food intake

Whether it’s 30 grams of nuts or 65 grams of lean meat, everything we eat and drink has weight, which increases our body weight temporarily while we digest and metabolise what we’ve consumed.

Our weight also tends to be lower first thing in the morning after our food intake has been restricted overnight and higher in the evening after our daily intake of food and drinks.

Exercise

If we weigh ourselves at the gym after a workout, there’s a good chance we’ll weigh less due to sweat-induced fluid loss. The amount of water lost varies depending on things like our workout intensity and duration, the temperature and humidity, along with our sweat rate and hydration level. On average, we lose 1 litre of sweat during an hour of moderate-intensity exercise.

Hormonal changes

Fluctuations in hormones within your menstrual cycle can also affect fluid balance. Women may experience fluid retention and temporarily gain 0.5–2kg of weight at this time. Specifically, the luteal phase, which represents the second half of a woman’s cycle, results in a shift of fluid from your blood plasma to your cells, and bloating.

Glass of water
Most of our weight fluctuations are water-related. Engin Akyurt/Unsplash

Bowel movements

Going to the bathroom can lead to small but immediate weight loss as waste is eliminated from the body. While the amount lost will vary, we generally eliminate around 100 grams of weight through our daily bowel movements.

All of these fluctuations are normal, and they’re not indicative of significant changes in our body fat or muscle mass. However, seeing these fluctuations can lead to unnecessary stress and a fixation with our weight.

3. Weekly weighing avoids scale obsession and weight-loss sabotage

Weighing too frequently can create an obsession with the number on the scales and do more harm than good.

Often, our reaction when we see this number not moving in the direction we want or expect is to further restrict our food intake or embark on fad dieting. Along with not being enjoyable or sustainable, fad diets also ultimately increase our weight gain rather than reversing it.

This was confirmed in a long-term study comparing intentional weight loss among more than 4,000 twins. The researchers found the likelihood of becoming overweight by the age of 25 was significantly greater for a twin who dieted to lose 5kg or more. This suggests frequent dieting makes us more susceptible to weight gain and prone to future weight gain.

So what should you do?

Weighing ourselves weekly gives a more accurate measure of our weight trends over time.

Aim to weigh yourself on the same day, at the same time and in the same environment each week – for example, first thing every Friday morning when you’re getting ready to take a shower, after you’ve gone to the bathroom, but before you’ve drunk or eaten anything.

Man weighs himself
Weigh yourself at the same time on the same day of the week. Alexanderstock23/Shutterstock

Use the best quality scales you can afford. Change the batteries regularly and check their accuracy by using a “known” weight – for example, a 10kg weight plate. Place the “known” weight on the scale and check the measurement aligns with the “known” weight.

Remember, the number on the scale is just one part of health and weight management. Focusing solely on it can overshadow other indicators, such as how your clothes fit. It’s also essential to pay equal attention to how we’re feeling, physically and emotionally.

Stop weighing yourself – at any time interval – if it’s triggering anxiety or stress, and get in touch with a health-care professional to discuss this.

At the Boden Group, Charles Perkins Centre, we are studying the science of obesity and running clinical trials for weight loss. You can register here to express your interest.

Nick Fuller, Charles Perkins Centre Research Program Leader, University of Sydney

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

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  • Zucchini & Oatmeal Koftas

    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.

    These vegetarian (and with one tweak, vegan) koftas are delicious as a snack, light lunch, or side to a larger meal. Healthwise, they contain the healthiest kind of fiber, as well as omega-3 fatty acids, and beneficial herbs and spices.

    You will need

    • ¼ cup oatmeal
    • 1 large zucchini, grated
    • 1 small carrot, grated
    • ¼ cup cheese (your preference; vegan is also fine)
    • 2 tbsp ground flaxseed
    • 2 tbsp nutritional yeast
    • ¼ bulb garlic, minced
    • 2 tsp black pepper, coarse ground
    • ½ tsp MSG or 1 tsp low-sodium salt
    • Small handful fresh parsley, chopped
    • Extra virgin olive oil, for frying

    Method

    (we suggest you read everything at least once before doing anything)

    1) Soak the flaxseed in 2 oz hot water for at least 5 minutes

    2) Combine all of the ingredients except the olive oil (and including the water that the flax has been soaking in) in a big bowl, mixing thoroughly

    3) Shape into small balls, patties, or sausage shapes, and fry until the color is golden and the structural integrity is good. If doing patties, you’ll need to gently flip them to cook both sides; otherwise, rolling them to get all sides is fine.

    4) Serve! Traditional is with some kind of yogurt dip, but we’re not the boss of you, so enjoy them how you like:

    Enjoy!

    Want to learn more?

    For those interested in some of the science of what we have going on today:

    Take care!

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  • What Most People Don’t Know About HIV

    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.

    What To Know About HIV This World AIDS Day

    Yesterday, we asked you to engage in a hypothetical thought experiment with us, and putting aside for a moment any reason you might feel the scenario wouldn’t apply for you, asked:

    ❝You have unprotected sex with someone who, afterwards, conversationally mentions their HIV+ status. Do you…❞

    …and got the above-depicted, below-described, set of responses. Of those who responded…

    • Just over 60% said “rush to hospital; maybe a treatment is available”
    • Just under 20% said “ask them what meds they’re taking (and perhaps whether they’d like a snack)”
    • Just over 10% said “despair; life is over”
    • Two people said “do the most rigorous washing down there you’ve ever done in your life”

    So, what does science say about it?

    First, a quick note on terms

    • HIV is the Human Immunodeficiency Virus. It does what it says on the tin; it gives humans immunodeficiency. Like many viruses that have become epidemic in humans, it started off in animals (called SIV, because there was no “H” involved yet), which were then eaten by humans, passing the virus to us when it one day mutated to allow that.
      • It’s technically two viruses, but that’s beyond the scope of today’s article; for our purposes they are the same. HIV-1 is more virulent and infectious than HIV-2, and is the kind more commonly found in most of the world.
    • AIDS is Acquired Immunodeficiency Syndrome, and again, is what it sounds like. When a person is infected with HIV, then without treatment, they will often develop AIDS.
      • Technically AIDS itself doesn’t kill people; it just renders people near-defenseless to opportunistic infections (and immune-related diseases such as cancer), since one no longer has a properly working immune system. Common causes of death in AIDS patients include cancer, influenza, pneumonia, and tuberculosis.

    People who contract HIV will usually develop AIDS if untreated. Untreated life expectancy is about 11 years.

    HIV/AIDS are only a problem for gay people: True or False?

    False, unequivocally. Anyone can get HIV and develop AIDS.

    The reason it’s more associated with gay men, aside from homophobia, is that since penetrative sex is more likely to pass it on…

    • If a man penetrates a woman and passes on HIV, that woman will probably not go on to penetrate someone else
    • If a man penetrates a man and passes on HIV, that man could go on to penetrate someone else—and so on
    • This means that without any difference in safety practices or promiscuity, it’s going to spread more between men on average, by simple mathematics.
    • This is why “men who have sex with men” is the generally-designated higher-risk category.

    There is medication to cure HIV/AIDS: True or False?

    False (though there have been individual case studies of gene treatments that may have cured people—time will tell).

    But! There are medications that can prevent HIV from being a life-threatening problem:

    • PrEP (Pre-Exposure Prophylaxis) is a medication that one can take in advance of potential exposure to HIV, to guard against it.
      • This is a common choice for people aren’t sure about their partners’ statuses, or people working in risky environments.
    • PEP (Post-Exposure Prophylaxis) is a medication that one can take after potential exposure to HIV, to “nip it in the bud”.
      • Those of you who were rushing to hospital in our poll, this is what you’re rushing there for.
    • ARVs (Anti-RetroVirals) are a class of medications (there are different options; we don’t have room to distinguish them) that reduce an HIV+ person’s viral load to undetectable levels.
      • Those of you who were asking what meds your partner was taking, these will be those meds. Also, most of them are to be taken in the morning with food, so that’s what the snack was for.

    If someone is HIV+, the risk of transmission in unprotected sex is high: True or False?

    True or False, with false being the far more likely. It depends on their medications, and this is why you were asking. If someone is on ARVs and their viral load is undetectable (as is usual once someone has been on ARVs for 6 months), they cannot transmit HIV to you.

    U=U is not a fancy new emoticon, it means “undetectable = untransmittable”, which is a mathematically true statement in the case of HIV viral loads.

    See: NIH | HIV Undetectable=Untransmittable (U=U)

    If you’re thinking “still sounds risky to me”, then consider this:

    You are safer having unprotected sex with someone who is HIV+ and on ARVs with an undetectable viral load, than you are with someone you are merely assuming is HIV- (perhaps you assume it because “surely this polite blushing young virgin of a straight man won’t give me cooties” etc)

    Note that even your monogamous partner of many decades could accidentally contract HIV due to blood contamination in a hospital or an accident at work etc, so it’s good practice to also get tested after things that involve getting stabbed with needles, cut in a risky environment, etc.

    If you’re concerned about potential stigma associated with HIV testing, you can get kits online:

    CDC | How do I find an HIV self-test?

    (these are usually fingerprick blood tests, and you can either see the results yourself at home immediately, or send it in for analysis, depending on the kit)

    If I get HIV, I will get AIDS and die: True or False?

    False, assuming you get treatment promptly and keep taking it. So those of you who were at “despair; life is over” can breathe a sigh of relief now.

    However, if you get HIV, it does mean you will have to take those meds every day for the rest of your (no reason it shouldn’t be long and happy) life.

    So, HIV is definitely still something to avoid, because it’s not great to have to take a life-saving medication every day. For a little insight as to what that might be like:

    HIV.gov | Taking HIV Medication Every Day: Tips & Challenges

    (as you’ll see there, there are also longer-lasting injections available instead of daily pulls, but those are much less widely available)

    Summary

    Some quick take-away notes-in-a-nutshell:

    • Getting HIV may have been a death sentence in the 1980s, but nowadays it’s been relegated to the level of “serious inconvenience”.
    • Happily, it is very preventable, with PrEP, PEP, and viral loads so low that they can’t transmit HIV, thanks to ARVs.
    • Washing will not help, by the way. Safe sex will, though!
      • As will celibacy and/or monogamy in seroconcordant relationships, e.g. you both have the same (known! That means actually tested recently! Not just assumed!) HIV status.
    • If you do get it, it is very manageable with ARVs, but prevention is better than treatment
    • There is no certain cure—yet. Some people (small number of case studies) may have been cured already with gene therapy, but we can’t know for sure yet.

    Want to know more? Check out:

    CDC | Let’s Stop HIV Together

    Take care!

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  • Water’s Counterintruitive Properties

    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.

    It’s Q&A Day at 10almonds!

    Have a question or a request? We love to hear from you!

    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

    ❝Why are we told to drink more water for everything, even if sometimes it seems like the last thing we need? Bloated? Drink water. Diarrhea? Drink water. Nose running like a tap? Drink water❞

    While water will not fix every ill, it can fix a lot, or at least stop it from being worse!

    Our bodies are famously over 60% water (exact figure will depend on how well-hydrated you are, obviously, as well as your body composition in terms of muscle and fat). Our cells (which are mostly full of mostly water) need replacing all the time, and almost everything that needs transporting almost anywhere is taken there by blood (which is also mostly water). And if we need something moving out of the body? Water is usually going to be a large part of how it gets ejected.

    In the cases of the examples you gave…

    • Bloating: bloating is often a matter of water retention, which often happens as a result of having too much salt, and/or sometimes too much fat. So the body’s homeostatic system (the system that tries to maintain all kinds of equilibrium, keeping salt balance, temperature, pH, and many other things in their respective “Goldilocks zones”) tries to add more water to where it’s needed to balance out the salt etc.
      • Consequently, drinking more water means the body will note “ok, balance restored, no need to keep retaining water there, excess salts being safely removed using all this lovely water”.
    • Diarrhea: this is usually a case of a bacterial infection, though there can be other causes. Whether for that reason or another, the body has decided that it needs to give your gut an absolute wash-out, and it can only do that from the inside—so it uses as much of the body’s water as it needs to do that.
      • Consequently, drinking more water means that you are replenishing the water that the body has already 100% committed to using. If you don’t drink water, you’ll still have diarrhea, you’ll just start to get dangerously dehydrated.
    • Runny nose: this is usually a case of either fighting a genuine infection, or else fighting something mistaken for a pathogen (e.g. pollen, or some other allergen). The mucus is an important part of the body’s defense: it traps the microbes (be they bacteria, virus, whatever) and water-slides them out of the body.
      • Consequently, drinking more water means the body can keep the water-slide going. Otherwise, you’ll just get gradually more dehydrated (because as with diarrhea, your body will prioritize this function over maintaining water reserves—water reserves are there to be used if necessary, is the body’s philosophy) and if the well runs dry, you’ll just be dehydrated and have a higher pathogen-count still in your body.

    Some previous 10almonds articles that might interest you:

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  • Almonds vs Cashews – Which is Healthier?

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    Our Verdict

    When comparing almonds to cashews, we picked the almonds.

    Why?

    Both are great! But here’s why we picked the almonds:

    In terms of macros, almonds have a little more protein and more than 4x the fiber. Given how critical fiber is to good health, and how most people in industrialized countries in general (and N. America in particular) aren’t getting enough, we consider this a major win for almonds.

    Things are closer to even for vitamins, but almonds have a slight edge. Almonds are higher in vitamins A, B2, B3, B9, and especially 27x higher in vitamin E, while cashews are higher in vitamins B1, B5, B6, C & K. So, a moderate win for almonds.

    In the category of minerals, cashews do a bit better on average. Cashews have moderately more copper, iron, phosphorus, selenium, and zinc, while almonds boast 6x more calcium, and slightly more manganese and potassium. We say this one’s a slight win for cashews.

    Adding the categories up, however, makes it clear that almonds win the day.

    However, of course, enjoy both! Diversity is healthy. Just, if you’re going to choose between them, we recommend almonds.

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  • Caffeine Blues – by Stephen Cherniske

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    Caffeine use is an interesting and often-underexamined factor in health. Beyond the most superficial of sleep hygiene advice (à la “if you aren’t sleeping well, consider skipping your triple espresso martini at bedtime”), it’s often considered a “everybody has this” drug.

    In this book, Cherniske explores a lot of the lesser-known effects of caffeine, and the book certainly is a litany against caffeine dependence, ultimately arguing strongly against caffeine use itself. The goal is certainly to persuade the reader to desist in caffeine use, and while the book’s selling point is “learn about caffeine” not “how to quit caffeine”, a program for quitting caffeine is nevertheless included.

    You may notice the title and cover design are strongly reminiscent of “Sugar Blues”, which came decades before it, and that’s clearly not accidental. The style is similar—very sensationalist, and with a lot of strong claims. In this case, however, there is actually a more robust bibliography, albeit somewhat dated now as science has continued to progress since this book was published.

    Bottom line: in this reviewer’s opinion, the book overstates its case a little, and is prone to undue sensationalism, but there is a lot of genuinely very good information in here too, making it definitely worth reading.

    Click here to check out Caffeine Blues, and remedy yours!

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  • Power Vegan Meals – by Maya Sozer

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    This book has inspired some of the recipes we’ve shared recently—we’ve invariably tweaked and in our opinion improved them, but the recipes are great as written too.

    The recipes, of which there are 75, are all vegan, gluten-free, high protein, and high fiber. Some reviewers on Amazon have complained that the recipes are high-calorie, and they often are, but those calories are mostly from healthy fats, so we don’t think it’s a bad thing. Still, if you’re doing a strict calorie-controlled diet, this is probably not the one for you.

    Another thing the recipes are is tasty without being unduly complicated, as well as being mostly free from obscure ingredients. This latter is a good thing not because obscure ingredients are inherently bad, but rather that it can be frustrating to read a recipe and find its star ingredient is a cup of perambulatory periannath that must be harvested from the west-facing slopes of Ithilien during a full moon, no substitutions.

    The style and format is simple and clear with minimal overture, one recipe per double-page; picture on one side, recipe on the other; perfect for a kitchen reading-stand.

    Bottom line: these recipes are for the most part very consistent with what we share here, and we recommend them, unless you’re looking for low-calorie options.

    Click here to check out Power Vegan Meals, and power-up your vegan meals!

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