Matcha is having a moment. What are the health benefits of this green tea drink?

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Matcha has experienced a surge in popularity in recent months, leading to reports of global shortages and price increases.

If you haven’t been caught up in the craze, matcha is a powdered version of green tea. On a cafe menu you might see a hot or iced matcha latte, or even a matcha-flavoured cake or pastry. A quick google brings up countless recipes incorporating matcha, both sweet and savoury.

Retailers and cafe owners have suggested the main reasons for matcha’s popularity include its “instagrammable” looks and its purported health benefits.

But what are the health benefits of matcha? Here’s what the evidence says.

Rawpixel.com/Shutterstock

First, what is matcha?

Matcha is a finely ground powder of green tea leaves, which come from the plant Camellia sinensis. This is the same plant used to make green and black tea. However, the production process differentiates matcha from green and black tea.

For matcha, the tea plant is grown in shade. Once the leaves are harvested, they’re steamed and dried and the stems are removed. Then the leaves are carefully ground at controlled temperatures to form the powder.

The production process for green tea is simpler. The leaves are picked from the unshaded plants, heated and then dried. We then steep the dried leaves in hot water to get tea (whereas with matcha the whole leaf is consumed).

With black tea, after the leaves are picked they’re exposed to air, which leads to oxidation. This makes the leaves black and gives the tea a different flavour.

Hands holding a cup of matcha.
In countries such as Japan, matcha is traditionally whisked with water and served in a stone bowl. Charlotte May/Pexels

A source of phytonutrients

Phytonutrients are chemical compounds found in plants which have a range of benefits for human health. Matcha contains several.

Chlorophyll gives plants such as Camellia sinensis their green colour. There’s some evidence chlorophyll may have health benefits – including anti-inflammatory, anti-cancer and anti-obesity effects – due to its antioxidant properties. Antioxidants neutralise free radicals, which are unstable molecules that harm our cells.

Theanine has been shown to improve sleep and reduce stress and anxiety. The only other known dietary source of theanine is mushrooms.

Caffeine is a phytonutrient we know well. Aside from increasing alertness, caffeine has also demonstrated antioxidant effects and some protection against a range of chronic and neurodegenerative diseases. However, too much caffeine can have negative side effects.

Interestingly, shading the plants while growing appears to change the nutritional composition of the leaf and may lead to higher levels of these phytonutrients in matcha compared to green tea.

Another compound worth mentioning is called catechins, of which there are several different types. Matcha powder similarly has more catechins than green tea. They are strong antioxidants, which have been shown to have protective effects against bacteria, viruses, allergies, inflammation and cancer. Catechins are also found in apples, blueberries and strawberries.

What are the actual health benefits?

So we know matcha contains a variety of phytonutrients, but does this translate to noticeable health benefits?

A review published in 2023 identified only five experimental studies that have given matcha to people. These studies gave participants about 2–4g of matcha per day (equivalent to 1–2 teaspoons of matcha powder), compared to a placebo, as either a capsule, in tea or in foods. Matcha decreased stress and anxiety, and improved memory and cognitive function. There was no effect on mood.

A more recent study showed 2g of matcha in older people aged 60 to 85 improved sleep quality. However, in younger people aged 27 to 64 in another study, matcha had little effect on sleep.

A study in people with obesity found no difference in the weight loss observed between the matcha group and the control group. This study did not randomise participants, and people knew which group they had been placed in.

It could be hypothesised that given you consume all of the leaf, and given levels of some phytonutrients may be higher due to the growing conditions, matcha may have more nutritional benefits than green tea. But to my knowledge there has been no direct comparison of health outcomes from green tea compared to matcha.

A matcha latte in a black cup on a brown table.
Matcha has grown in popularity – but evidence for its health benefits is still limited. Usanee/Shutterstock

There’s lots of evidence for green tea

While to date a limited number of studies have looked at matcha, and none compared matcha and green tea, there’s quite a bit of research on the health benefits of drinking green tea.

A systematic review of 21 studies on green tea has shown similar benefits to matcha for improvements in memory, plus evidence for mood improvement.

There’s also evidence green tea provides other health benefits. Systematic reviews have shown green tea leads to weight loss in people with obesity, lower levels of certain types of cholesterol, and reduced blood pressure. Green tea may also lower the risk of certain types of cancer.

So, if you can’t get your hands on matcha at the moment, drinking green tea may be a good way to get your caffeine hit.

Although the evidence on green tea provides us with some hints about the health benefits of matcha, we can’t be certain they would be the same. Nonetheless, if your local coffee shop has a good supply of matcha, there’s nothing to suggest you shouldn’t keep enjoying matcha drinks.

However, it may be best to leave the matcha croissant or cronut for special occasions. When matcha is added to foods with high levels of added sugar, salt and saturated fat, any health benefits that could be attributed to the matcha may be negated.

Evangeline Mantzioris, Program Director of Nutrition and Food Sciences, Accredited Practising Dietitian, University of South Australia

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

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  • Walk Like You’re 20 Years Younger Again

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    How fit, healthy, strong, and mobile were you 20 years ago? For most people, the answer is “better than now”. Physiotherapist Dr. Doug Weiss has advice on turning back the clock:

    The exercises

    If you already have no problems walking, this one is probably not for you. However, if you’re not so able to comfortably walk as you used to be, then Dr. Weiss recommends:

    • Pillow squat: putting pillow on a chair, crossing hands on chest, standing up and sitting down. Similar to the very important “getting up off the floor without using your hands” exercise, but easier.
    • Wall leaning: standing against a wall with heels 4″ away from it, crossing arms over chest again, and pulling the body off the wall using the muscles in the front of the shin. Note, this means not cheating by using other muscles, leveraging the upper body, pushing off with the buttocks, or anything else like that.
    • Stepping forward: well, this certainly is making good on the promise of walking like we did 20 years ago; there sure was a lot of stepping forward involved. More seriously, this is actually about stepping over some object, first with support, and then without.
    • Heel raise: is what it sounds like, raising up on toes and back down again; first with support, then without.
    • Side stepping: step sideways 2–3 steps in each direction. First with support, then without. Bonus: if your support is your partner, then congratulations, you are now dancing bachata.

    For more details (and visual demonstration) of these exercises and more, enjoy:

    Click Here If The Embedded Video Doesn’t Load Automatically!

    Want to learn more?

    You might also like:

    4 Tips To Stand Without Using Hands

    Take care!

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  • Wakefulness, Cognitive Enhancement, AND Improved Mood?

    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.

    Old Drug, New Tricks?

    Modafinil (also known by brand names including Modalert and Provigil) is a dopamine uptake inhibitor.

    What does that mean? It means it won’t put any extra dopamine in your brain, but it will slow down the rate at which your brain removes naturally-occuring dopamine.

    The result is that your brain will get to make more use of the dopamine it does have.

    (dopamine is a neutrotransmitter that allows you to feel wakeful and happy, and perform complex cognitive tasks)

    Modafinil is prescribed for treatment of excessive daytime sleepiness. Often that’s caused by shift work sleep disorder, sleep apnea, restless leg syndrome, or narcolepsy.

    Read: Overview of the Clinical Uses, Pharmacology, and Safety of Modafinil

    Many studies done on humans (rather than rats) have been military experiments to reduce the effects of sleep deprivation:

    Click Here To See A Military Study On Modafinil!

    They’ve found modafinil to be helpful, and more effective and more long-lasting than caffeine, without the same “crash” later. This is for two reasons:

    1) while caffeine works by blocking adenosine (so you don’t feel how tired you are) and by constricting blood vessels (so you feel more ready-for-action), modafinil works by allowing your brain to accumulate more dopamine (so you’re genuinely more wakeful, and you get to keep the dopamine)

    2) the biological half-life of modafinil is 12–15 hours, as opposed to 4–8 hours* for caffeine.

    *Note: a lot of sources quote 5–6 hours for caffeine, but this average is misleading. In reality, we are each genetically predetermined to be either a fast caffeine metabolizer (nearer 4 hours) or a slow caffeine metabolizer (nearer 8 hours).

    What’s a biological half-life (also called: elimination half-life)?

    A substance’s biological half-life is the time it takes for the amount in the body to be reduced by exactly half.

    For example: Let’s say you’re a fast caffeine metabolizer and you have a double-espresso (containing 100mg caffeine) at 8am.

    By midday, you’ll have 50mg of caffeine left in your body. So far, so simple.

    By 4pm you might expect it to be gone, but instead you have 25mg remaining (because the amount halves every four hours).

    By 8pm, you have 12.5mg remaining.

    When midnight comes and you’re tucking yourself into bed, you still have 6.25mg of caffeine remaining from your morning coffee!

    Use as a nootropic

    Many healthy people who are not sleep-deprived use modafinil “off-label” as a nootropic (i.e., a cognitive enhancer).

    Read: Modafinil for cognitive neuroenhancement in healthy non-sleep-deprived subjects: A systematic review

    Important Note: modafinil is prescription-controlled, and only FDA-approved for sleep disorders.

    To get around this, a lot of perfectly healthy biohackers describe the symptoms of sleep pattern disorder to their doctor, to get a prescription.

    We do not recommend lying to your healthcare provider, and nor do we recommend turning to the online “grey market”.

    Such websites often use anonymized private doctors to prescribe on an “informed consent” basis, rather than making a full examination. Those websites then dispense the prescribed medicines directly to the patient with no further questions asked (i.e. very questionable practices).

    Caveat emptor!

    A new mood-brightener?

    Modafinil was recently tested head-to-head against Citalapram for the treatment of depression, and scored well:

    See its head-to-head scores here!

    How does it work? Modafinil does for dopamine what a lot of anti-depressants do for serotonin. Both dopamine and serotonin promote happiness and wakefulness.

    This is very promising, especially as modafinil (in most people, at least) has fewer unwanted side-effects than a lot of common anti-depressant medications.

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  • Why do I need to take some medicines with food?

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    Have you ever been instructed to take your medicine with food and wondered why? Perhaps you’ve wondered if you really need to?

    There are varied reasons, and sometimes complex science and chemistry, behind why you may be advised to take a medicine with food.

    To complicate matters, some similar medicines need to be taken differently. The antibiotic amoxicillin with clavulanic acid (sold as Amoxil Duo Forte), for example, is recommended to be taken with food, while amoxicillin alone (sold as Amoxil), can be taken with or without food.

    Different brands of the same medicine may also have different recommendations when it comes to taking it with food.

    Ron Lach/Pexels

    Food impacts drug absorption

    Food can affect how fast and how much a drug is absorbed into the body in up to 40% of medicines taken orally.

    When you have food in your stomach, the makeup of the digestive juices change. This includes things like the fluid volume, thickness, pH (which becomes less acidic with food), surface tension, movement and how much salt is in your bile. These changes can impair or enhance drug absorption.

    Eating a meal also delays how fast the contents of the stomach move into the small intestine – this is known as gastric emptying. The small intestine has a large surface area and rich blood supply – and this is the primary site of drug absorption.

    Quinoa salad and healthy pudding
    Eating a meal with medicine will delay its onset. Farhad/Pexels

    Eating a larger meal, or one with lots of fibre, delays gastric emptying more than a smaller meal. Sometimes, health professionals will advise you to take a medicine with food, to help your body absorb the drug more slowly.

    But if a drug can be taken with or without food – such as paracetamol – and you want it to work faster, take it on an empty stomach.

    Food can make medicines more tolerable

    Have you ever taken a medicine on an empty stomach and felt nauseated soon after? Some medicines can cause stomach upsets.

    Metformin, for example, is a drug that reduces blood glucose and treats type 2 diabetes and polycystic ovary syndrome. It commonly causes gastrointestinal symptoms, with one in four users affected. To combat these side effects, it is generally recommended to be taken with food.

    The same advice is given for corticosteroids (such as prednisolone/prednisone) and certain antibiotics (such as doxycycline).

    Taking some medicines with food makes them more tolerable and improves the chance you’ll take it for the duration it’s prescribed.

    Can food make medicines safer?

    Ibuprofen is one of the most widely used over-the-counter medicines, with around one in five Australians reporting use within a two-week period.

    While effective for pain and inflammation, ibuprofen can impact the stomach by inhibiting protective prostaglandins, increasing the risk of bleeding, ulceration and perforation with long-term use.

    But there isn’t enough research to show taking ibuprofen with food reduces this risk.

    Prolonged use may also affect kidney function, particularly in those with pre-existing conditions or dehydration.

    The Australian Medicines Handbook, which guides prescribers about medicine usage and dosage, advises taking ibuprofen (sold as Nurofen and Advil) with a glass of water – or with a meal if it upsets your stomach.

    Pharmacist gives medicine to customer
    If it doesn’t upset your stomach, ibuprofen can be taken with water. Tbel Abuseridze/Unsplash

    A systematic review published in 2015 found food delays the transit of ibuprofen to the small intestine and absorption, which delays therapeutic effect and the time before pain relief. It also found taking short courses of ibuprofen without food reduced the need for additional doses.

    To reduce the risk of ibuprofen causing damage to your stomach or kidneys, use the lowest effective dose for the shortest duration, stay hydrated and avoid taking other non-steroidal anti-inflammatory medicines at the same time.

    For people who use ibuprofen for prolonged periods and are at higher risk of gastrointestinal side effects (such as people with a history of ulcers or older adults), your prescriber may start you on a proton pump inhibitor, a medicine that reduces stomach acid and protects the stomach lining.

    How much food do you need?

    When you need to take a medicine with food, how much is enough?

    Sometimes a full glass of milk or a couple of crackers may be enough, for medicines such as prednisone/prednisolone.

    However, most head-to-head studies that compare the effects of a medicine “with food” and without, usually use a heavy meal to define “with food”. So, a cracker may not be enough, particularly for those with a sensitive stomach. A more substantial meal that includes a mix of fat, protein and carbohydrates is generally advised.

    Your health professional can advise you on which of your medicines need to be taken with food and how they interact with your digestive system.

    Mary Bushell, Clinical Associate Professor in Pharmacy, University of Canberra

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

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  • Boundary-Setting Beyond “No”

    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.

    More Than A “No”

    A lot of people struggle with boundary-setting, and it’s not always the way you might think.

    The person who “can’t say no” to people probably comes to mind, but the problem is more far-reaching than that, and it’s rooted in not being clear over what a boundary actually is.

    For example: “Don’t bring him here again!”

    Pretty clear, right?

    And while it is indeed clear, it’s not a boundary; it’s a command. Which may or may not be obeyed, and at the end of the day, what right have we to command people in general?

    Same goes for less dramatic things like “Don’t talk to me about xyz”, which can still be important or trivial, depending on whether the topic of xyz is deeply traumatizing for you, or mildly annoying, or something else entirely.

    Why this becomes a problem

    It becomes a problem not because of any lack of clarity about your wishes, but rather, because it opens the floor for a debate. The listener may be given to wonder whether your right to not experience xyz is greater or lesser than their right to do/say/etc xyz.

    “My right to swing my fist ends where someone else’s nose begins”

    …does not help here, firstly because both sides will believe themself (or nobody) to be the injured party; for the fist-swinger, the other person’s nose made a vicious assault on their freedom. Or secondly, maybe there was some higher principle at stake; a reason why violence was justified. And then ten levels of philosophical debate. We see this a lot when it comes to freedom of expression, and vigorous debate over whether this entails freedom from social consequences of one’s words/actions.

    How a good boundary-setting works (if this, then that)

    Consider two signs:

    • No trespassing!
    • Trespassers will be shot!

    Superficially, the second just seems like a more violent rendition of the first. But in fact, the second is more informationally useful: it explains what will happen if the boundary is not respected, and allows the reader to make their own informed decision with regard to what to do with that information.

    We can employ this method (and can even do so gently, if we so wish and hopefully we mostly do wish to be gentle) when it comes to social and interpersonal boundary-setting:

    • If you bring him here again, I will refuse you entrance
    • If you bring up that topic again, I will ask you to leave
    • If you do that, I will never speak to you again
    • If you don’t stop drinking, I will divorce you

    This “if-this-then-that” model does the very first thing that any good boundary does: make itself clear.

    It doesn’t rely on moral arguments; it doesn’t invite debate. For example in that last case, it doesn’t argue that the partner doesn’t have the right to drink—it simply expresses what the speaker will exercise their own right to do, in that eventuality.

    (as an aside, the situation that occurs when one is enmeshed with someone who is dependent on a substance is a complex topic, and if you’re interested in that, check out: Codependency Isn’t What Most People Think)

    Back on track: boundary-setting is not about what’s right or good—it’s about nothing more nor less than a clear delineation between what we will and won’t accept, and how we’ll enforce that.

    We can also, in particularly personal boundary-setting (such as with sexual boundaries’ oft-claimed “gray areas”), fix an improperly-set boundary that forgot to do the above, e.g:

    “How about [proposition]?”
    “No thank you” ← casually worded answer; contextually reasonable, and yet not a clear boundary per what we discussed above
    “Come on, I think you’d like it”
    “I said no. No means no. Ask me again and I will [consequences that are appropriate and actionable]”

    What’s “appropriate and actionable” may vary a lot from one situation to another, but it’s important that it’s something you can do and are prepared to do and will do if the condition for doing it is met.

    Anything less than that is not a boundary—it’s just a request.

    Note: this does not require that we have power, by the way. If we have zero power in a situation, well, that definitely sucks, but even then we can still express what is actionable, e.g. “I will never trust you again”.

    “Price of entry”

    You may have wondered, upon reading “boundary-setting is not about what’s right or good—it’s about nothing more nor less than a clear delineation between what we will and won’t accept, and how we’ll enforce that”, can’t that be used to control and manipulate people, essentially coercing them to do or not do things with the threat of consequences (specifically: bad ones)?

    And the answer is: yes, yes it can.

    But that’s where the flipside comes into play—the other person gets to set their boundaries, too.

    For all of us, if we have any boundaries at all, there is a “price of entry” and all who want to be in our lives, or be close to us, have to decide for themselves whether that price of entry is worth it.

    • If a person says “do not talk about topic xyz to me or I will leave”, that is a price of entry for being close to them.
    • If you are passionate about talking about topic xyz to the point that you are unwilling to shelve it when in their presence, then that is the price of entry for being close to you.
    • If one or more of you is not willing to pay the price of entry, then guess what, you’re just not going to be close.

    In cases of forced proximity (e.g. workplaces or families) this is likely to get resolved by the workplace’s own rules (i.e. the price of entry that you agreed to when signing a contract to work there), and if something like that doesn’t exist (such as in families), well, that forced proximity is going to reach a breaking point, and somebody may discover it wasn’t enforceable after all.

    See also: Family Estrangement: More Common Than Most People Think

    …which also details how to fix it, where possible.

    Take care!

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  • Alzheimer’s Risk Reduction Methods

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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!)

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  • What To Do If Having A Stroke Alone?

    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 😎

    ❝Thank you for the video about what to do if you have a heart attack alone, what about what to do if you have a stroke alone?❞

    (for anyone who missed that video, here it is)

    That’s a good question, especially as stroke risk is rising in the industrialized world in general, and the US in particular.

    However, let’s start with the caveat that if you are having a stroke, there’s a good chance you will forget what we are about to say, what with the immediate effects it has on the brain. That said…

    The general advice when it comes to looking after someone else who is experiencing a stroke, is, “don’t”.

    In other words, call emergency services, and don’t do anything else, e.g:

    • don’t give them anything to eat or drink
    • don’t give them any medications
    • don’t let them go to sleep
    • don’t let them talk you out of calling emergency services
    • don’t let them drive themselves to hospital
    • don’t drive them to hospital yourself either*

    *This is for two reasons:

    1. an ambulance crew has skills and resources that you don’t, and can begin treatment en-route, and also,
    2. not all hospitals have appropriate resources to treat stroke, so the ambulance crew will know to drive to one that does, instead of driving to a random hospital and hoping for the best

    So, flipping this for if it’s you having the stroke, and you’re cognizant enough to remember this:

    • do call an ambulance; stay on the line and don’t do anything else unless instructed by the emergency services.

    In order to do that, of course it’s important to recognize the symptoms; you probably know these but just in case, the mnemonic is “FAST”:

    • Face: is there weakness on one side of their face?
    • Arms: if they raise both arms, does one drift downwards?
    • Speech: if they speak, is their speech slurred or otherwise unusual?
    • Time: to call emergency services

    It’s great to not get caught out by surprise, so you might also want to check out:

    6 Signs Of Stroke (One Month In Advance)

    Take care!

    Don’t Forget…

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    Learn to Age Gracefully

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