Food Expiration Dates Don’t Mean What Most People Think They Mean

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Have you ever wondered why rock salt that formed during the Precambrian era has a label on it saying that it expires next month? To take something more delicate, how about eggs that expire next Thursday; isn’t that oddly specific for something that is surely affected by many variables? What matters, and what doesn’t?

Covering their assets

The US in particular wastes huge amounts of food, with 37% of food waste coming from households. Confusion over date labels is a major contributor, accounting for 20% of household food waste. Many people misinterpret these labels, often discarding food that is still safe to eat—which is good for the companies selling the food, because then they get to sell you more.

Date labels were introduced in the 70s with the “open dating” system to indicate optimal freshness, not safety. These dates are often conservative, set by manufacturers to ensure food is consumed at its best quality and encourage repeat purchases. However, many foods remain safe well past their labeled dates, including shelf-stable items like pasta, rice, and canned goods, as well as frozen foods stored properly.

Some foods do pose safety risks, especially meat and dairy products, as well as many grain-based foods, all of which which can harbor harmful bacteria. Infant formula labels are strictly regulated for safety. However, most date labels are not linked to health risks, leading to unnecessary waste.

When it comes down to it, our senses of sight, smell, and taste are more reliable than dates on packaging. Some quick pointers and caveats:

  • If it has changed color in some way that’s not associated with a healthily ripening fruit or vegetable, that’s probably bad
  • If it is moldy, that’s probably bad (but the degree of badness varies from food to food; see the link beneath today’s video for more on that)
  • If a container has developed droplets of water on the inside when it didn’t have those before, that’s probably bad (it means something is respiring, and is thus alive, that probably shouldn’t be)
  • If it smells bad, that’s probably bad—however this is not a good safety test, because a bad smell may often mean you are inhaling mold spores, which are not good for your lungs.
  • If it tastes different than that food usually does, that’s probably bad (especially if it became bitter, pungent, tangy, sour, or cheesy, and does nor normally taste that way).

Some places have trialled clearer labelling, for example a distinction between “expires” and merely “best before”, but public awareness about the distinction is low. Some places have trialled removing dates entirely, to oblige the consumer to use their own senses instead. This is good for the seller in a different way than household food waste is, because it means the seller will have less in-store waste (because they can still sell something that might previously have been labelled as expired).

For more on all of this, enjoy:

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

Want to learn more?

You might also like to read:

Mythbusting Moldy Food

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  • Before You Eat Breakfast: 3 Surprising Facts About Intermittent Fasting

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    Dr. William Li is well-known for his advocacy of “eating to beat disease”, and/but today he has advice for us about not eating to beat disease. In moderation, of course, thus: intermittent fasting.

    The easy way

    Dr. Li explains the benefits of intermittent fasting; how it improves the metabolism and gives the body a chance to do much-needed maintainance, including burning off any excess fat we had hanging around.

    However, rather than calling for us to do anything unduly Spartan, he points out that it’s already very natural for us to fast while sleeping, so we only need to add a couple of hours before and after sleeping (assuming an 8 hour sleep), to make it to a 12-hour fast for close to zero effort and probably no discomfort.

    And yes, he argues that a 12-hour fast is beneficial, and even if 16 hours would be better, we do not need to beat ourselves up about getting to 16; what is more important is sustainability of the practice.

    Dr. Li advocates for flexibility in fasting, and that it should be done by what manner is easiest, rather than trying to stick to something religiously (of course, if you do fast for religious reasons, that is another matter, and/but beyond the scope of this today).

    For more information on each of these, as well as examples and tips, enjoy:

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

    Want to learn more?

    You might also like to read:

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  • Bath vs Shower – Which is Healthier?

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    Our Verdict

    When comparing bathing to showering, we picked the shower.

    Why?

    For the basic task of getting your body clean, the shower is better as it is an entirely one-way process. Clean water hits your body, dirty water leaves it, and no dirt is making its way back.

    Baths do not have this advantage, and if you enter a bath dirty, you will then be sitting in dirty water. You will leave it a lot cleaner than you entered it (because a lot of the dirt stayed in the bathwater to be drained away after the bath), but not as clean as if you had showered.

    One could argue soap or equivalent will prevent the dirt re-sticking, and that’s true, but it’s true for soap in the shower too, so it doesn’t offset anything.

    Additionally, being immersed in water for more than 15 minutes can start to have a (paradoxically) dehydrating effect on the skin; this happens not only because of losing skin oils to the water, but also because of osmosis, the resultant mild edema, the body’s homeostatic response to the mild edema, then getting out the bath and drying, leaving one with the response having now just caused dehydrated skin.

    Baths do have some health advantages! And these come primarily from the mental health benefits of relaxation in warm water and/or generally pampering oneself. Additionally, some bath oils or bath salts can be beneficial in a way that couldn’t be administered the same way in the shower.

    Best of both worlds?

    In some parts of the world (Thailand and Turkey come to mind; doubtlessly there are many others) there are traditions of first taking a shower to get clean, and then taking a bath for the rest of the bathing experience. As a bonus, the bathing experience is then all the more pleasant for the water remaining just as clean as it was to start with.

    However, if you do have to pick one (and for the purpose of our “This or That” exercise, we do), then it’s the shower, hands-down.

    Want to read more?

    You might want to also take into account how it’s still possible to have too much of a good thing:

    Enjoy!

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  • The Food Additive You Do Want

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    Q: When Is A Fiber Not A Fiber?

    A: when it’s a resistant starch. What’s it resistant to? Digestion. So, it functions as though a fiber, and by some systems, may get classified as such.

    It’s a little like how sucralose is technically a sugar, but the body processes it like a fiber (but beware, because the sweetness of this disaccharide alone can trigger an insulin response anyway—dose dependent)

    There may be other problems too:

    But today’s not about sucralose, it’s about…

    Guar gum’s surprising dietary role

    You may have noticed “guar gum” on the list of ingredients of all kinds of things from baked goods to dairy products to condiments to confectionary and more.

    It’s also used in cosmetics and explosives, but let’s not focus on that.

    It’s used in food products as…

    • a bulking agent
    • a thickener
    • a stabilizer

    Our attention was caught by a new study, that found:

    Resistant starch intake facilitates weight loss in humans by reshaping the gut microbiota

    Often people think of “fiber helps weight loss” as “well yes, if you are bulking out your food with sawdust, you will eat less”, but it’s not that.

    There’s an actual physiological process going on here!

    We can’t digest it, but our gut microbiota can and will ferment it. See also:

    Fiber against pounds: Resistant starch found to support weight loss

    Beyond weight loss

    Not everyone wants to lose weight, and even where weight loss is a goal, it’s usually not the only goal. As it turns out, adding guar gum into our diet does more things too:

    Resistant starch supplement found to reduce liver triglycerides in people with fatty liver disease

    (specifically, this was about NAFLD, non-alcoholic fatty liver disease)

    Digging a little, it seems the benefits don’t stop there either:

    Diet high in guar gum fiber limits inflammation and delays multiple sclerosis symptoms

    (this one was a rodent study, but still, it’s promising and it’s consistent with what one would expect based on what else we know about its function in diet)

    Should we just eat foods with guar gum in as an additive?

    That depends on what they are, but watch out for the other additives if you do!

    You can just buy guar gum by itself, by the way (here’s an example product on Amazon).

    It’s doubtlessly no fun to take as a supplement (we haven’t tried this one), but it can be baked into bread, if baking’s your thing, or just used as a thickener in recipes where ordinarily you might use cornstarch or something else.

    Can I get similar benefits from other foods?

    The relevant quality is also present in resistant starches in general, so you might want to check out these foods, for example:

    9 Foods That Are High in Resistant Starch

    You can also check out ways to increase your fiber intake in general:

    Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)

    Enjoy!

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  • Bamboo Shoots vs Asparagus – Which is Healthier?

    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.

    Our Verdict

    When comparing bamboo shoots to asparagus, we picked the asparagus.

    Why?

    Both are great! But asparagus does distinguish itself on nutritional density.

    In terms of macros, bamboo starts strong with more protein and fiber, but it’s not a huge amount more; the margins of difference are quite small.

    In the category of vitamins, asparagus wins easily with more of vitamins A, B2, B3, B5, B9, C, E, K, and choline. In contrast, bamboo boasts only more vitamin B6. A clear win for asparagus.

    The minerals line-up is closer; asparagus has more calcium, iron, magnesium, and selenium, while bamboo shoots have more manganese, phosphorus, potassium, and zinc. That’s a 4:4 tie, but asparagus’s margins of difference are larger, and if we need a further tiebreaker, bamboo also contains more sodium, which most people in the industrialized world could do with less of rather than more. So, a small win for asparagus.

    In short, adding up the sections… Bamboo shoots, but asparagus scores, and wins the day. Enjoy both, of course, but if making a pick, then asparagus has more bang-for-buck.

    Want to learn more?

    You might like to read:

    Asparagus vs Eggplant – Which is Healthier?

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  • Optimal Black Pepper Dosage and Supplement

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    It’s Q&A Day at 10almonds!

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

    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

    ❝I may have missed it, but how much black pepper provides benefits?❞

    So, for any new subscribers joining us today, this is about two recent main features:

    As for a daily dosage of black pepper, it varies depending on the benefit you’re looking for, but:

    • 5–20mg of piperine is the dosage range used in most scientific studies we looked at
    • 10mg is a very common dosage found in many popular supplements
    • That’s the mass of piperine though, so if taking it as actual black pepper rather than as an extract, ½ teaspoon is considered sufficient to enjoy benefits.

    ❝I loved the health benefits of pepper. I do not like pepper. Where can I get it as a supplement?❞

    You can simply buy whole black peppercorns and take a few with water as though they were tablets. Your stomach acid will do the rest. Black pepper is also good for digestion, so taking it with a meal is best.

    You can buy piperine (black pepper extract) by itself as a supplement in powder form, but if you don’t like black pepper, you will probably not like this powder either. We couldn’t find it readily in capsule form.

    You can buy piperine (black pepper extract) as an adjunct to other supplements, with perhaps the most common/popular being turmeric capsules that also contain 10mg (or more) piperine per capsule. Shop around if you like, but here’s one that has 15mg piperine* per capsule, for example.

    *They call it “Bioperine®” but that is literally just piperine. Same go

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  • The Cough Doctor

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    The Cough Doctor

    This is Dr. Peter Small, who worked in epidemiology since the beginning of HIV epidemic. He became a pioneer in the field of molecular epidemiology. As such, his work was a guiding beacon for the public health response to the resurgence of tuberculosis. He’s travelled the world spending years in various institutions studying all manner of respiratory illnesses…. These have ranged from tuberculosis to pneumonia to lung cancer and (back to epidemiology) Covid-19.

    He’s now the Chief Medical Officer at…

    Hyfe

    Hyfe, a medical AI company, was founded in 2020. Its objective: to build acoustic tools for respiratory diagnostics and monitoring.

    In other words: it records coughs and collects data about coughing.

    ❝It’s ironic how much people focus on counting steps while ignoring cough, which is far more consequential. Hyfe is a science-driven company with the technology to make cough count. Particularly now, with increased awareness of cough and the rapid growth of digital health driven by Covid-19, this technology can improve the lives of patients, the care provided by doctors, and the efficiency of health systems.❞

    ~ Dr. Peter Small, CMO, Hyfe

    How does it do it?

    Hyfe’s AI monitors the number of times a person coughs and the sound of the cough through any smartphone or other smart device.

    This data collected over time provides increasingly more reliable information than a single visit to the doctor! By constantly listening and analyzing, it can detect patterns that might otherwise go unnoticed.

    How big is this “big data” effort?

    Hyfe maintains the largest cough dataset in the world. This means it can compare the sound of a patient’s cough with more than 400 million cough-like sounds from 83 countries across all continents.

    The human brain doesn’t handle big numbers well. So, just to illustrate: if the average cough is 1 second long, that means it’d take more than 12 years to listen to them all.

    Hyfe, meanwhile, can:

    • listen to many things simultaneously
    • index them all against user and location,
    • use its ever-growing neural net to detect and illustrate patterns.

    It’s so attentive, that it can learn to distinguish between different people’s coughs in the same household.

    ❝Companies like Google Health see even basic information such as getting an accurate count of the number of times a person coughs a day as a useful resource, and part of a larger need to collect and chronicle more health information to refine the way doctors diagnose disease and manage treatments in the future.❞

    ~ Time Magazine

    What are the public health implications?

    The most obvious application is to note when there’s a spike in coughing, and see how such spikes grow and spread (if they do), to inform of contagion risks.

    Another is to cross-reference it with data about local environmental allergens. Knowing how things like pollution and even pollen affect individuals differently could be helpful in identifying (and managing) chronic conditions like asthma.

    What are the private health implications?

    ❝It’s going to transform the whole clinical approach for this common and chronic symptom. Patients will come in, have the data on how much they are coughing, and the physician can suggest a treatment based on that information to see if it makes the coughs better❞

    ~ Dr. Peter Small

    Dr. Small’s colleague Dr. Cai, speaking for Google Health on this project, sees even more utility for diagnostics:

    ❝When I was in medical school, never ever did they teach us that we could listen to somebody cough and identify whether that person has TB (tuberculosis), COPD, or a tumor. But I keep seeing more and more studies of people coughing into a microphone, and an algorithm can detect whether somebody has TB with 95% specificity and sensitivity, or if someone has pneumonia or an exacerbation of COPD❞

    ~ Dr. Lawrence Cai

    And the privacy implications?

    Perhaps you don’t quite fancy the idea of not being able to cough without Google knowing about it. Hyfe’s software is currently opt-in, but…

    If you cough near someone else’s Hyfe app, their app will recognize you’re not the app’s user, and start building a profile for you. Of course, that won’t be linked to your name, email address, or other IDs, as it would if you were the app’s user.

    Hyfe will ask to connect to your social media, to collect more information about you and your friends.

    Whether you’d like to try this or perhaps you’re just curious to learn more about this fascinating project, you can check out:

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