Our Top 5 Spices: How Much Is Enough For Benefits?
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A spoonful of pepper makes the… Hang on, no, that’s not right…
We know that spices are the spice of life, and many have great health-giving qualities. But…
- How much is the right amount?
- What’s the minimum to get health benefits?
- What’s the maximum to avoid toxicity?
That last one always seems like a scary question, but please bear in mind: everything is toxic at a certain dose. Oxygen, water, you-name-it.
On the other hand, many things have a toxicity so low that one could not physically consume it sufficiently faster than the body eliminates it, to get a toxic build-up.
Consider, for example, the €50 banknote that was nearly withdrawn from circulation because one of the dyes used in it was found to be toxic. However, the note remained in circulation after scientists patiently explained that a person would have to eat many thousands of them to get a lethal dose.
So, let’s address these questions in reverse order:
What’s the maximum to avoid toxicity?
In the case of the spices we’ll look at today, the human body generally* has high tolerance for them if eaten at levels that we find comfortable eating.
*IMPORTANT NOTE: If you have (or may have) a medical condition that may be triggered by spices, go easier on them (or if appropriate, abstain completely) after you learn about that.
Check with your own physician if unsure, because not only are we not doctors, we’re specifically not your doctors, and cannot offer personalized health advice.
We’re going to be talking in averages and generalizations here. Caveat consumator.
For most people, unless you are taking the spice in such quantities that you are folding space and seeing the future, or eating them as the main constituents of your meal rather than an embellishment, you should be fine. Please don’t enter a chilli-eating contest and sue us.
What is the minimum to get health benefits and how much should we eat?
The science of physiology generally involves continuous rather than discrete data, so there’s not so much a hard threshold, as a point at which the benefits become significant. The usefulness of most nutrients we consume, be they macro- or micro-, will tend to have a bell curve.
In other words, a tiny amount won’t do much, the right amount will have a good result, and usefulness will tail off after that point. To that end, we’re going to look at the “sweet spot” of peaking on the graph.
Also note: the clinical dose is the dose of the compound, not the amount of the food that one will need to eat to get that dose. For example, food x containing compound y will not usually contain that compound at 100% rate and nothing else. We mention this so that you’re not surprised when we say “the recommended dose is 5mg of compound, so take a teaspoon of this spice”, for example.
Further note: we only have so much room here, so we’re going to list only the top benefits, and not delve into the science of them. You can see the related main features for more details, though!
The “big 5” health-giving spices, with their relevant active compound:
- Black pepper (piperine)
- Hot pepper* (capsaicin)
- Garlic (allicin)
- Ginger (gingerol)
- Turmeric (curcumin**)
*Cayenne pepper is very high in capsaicin; chilli peppers are also great
**not the same thing as cumin, which is a completely different plant. Cumin does have some health benefits of its own, but not in the same league as the spices above, and there’s only so much we have room to cover today.
Black pepper
- Benefits: antioxidant, anti-cancer, boosts bioavailability of other nutrients, aids digestion
- Dosage: 5–20mg for benefits
- Suggestion: ½ teaspoon of black pepper is sufficient for benefits. However, this writer’s kitchen dictum in this case is “if you can’t see the black pepper in/on the food, add more”—but that’s more about taste!
- Related main feature: Black Pepper’s Anti-Cancer Arsenal (And More)
Hot Pepper
- Benefits: anti-inflammatory, metabolism accelerator
- Dosage: 6mg gives benefits, 500mg is a common dose in capsules
- Suggestion: if not making a spicy dish, consider using a teaspoon of cayenne as part of the seasoning for rice or potatoes
- Related main feature: Capsaicin For Weight Loss And Against Inflammation
Garlic
- Benefits: heart health, blood sugar balancing, anti-cancer
- Dosage: 4–8µg for benefits
- Suggestion: 1–2 cloves daily is generally good. However, cooking reduces allicin content (and so does oxidation after cutting/crushing), so you may want to adjust accordingly if doing those things.
- Related main feature: The Many Health Benefits Of Garlic
Ginger
- Benefits: anti-inflammatory, antioxidant, anti-nausea
- Dosage: 3–4g for benefits
- Suggestion: 1 teaspoon grated raw ginger or ½ a teaspoon powdered ginger, can be used in baking or as part of the seasoning for a stir-fry
- Related main feature: Ginger Does A Lot More Than You Think
Turmeric
- Benefits: anti-inflammatory, anti-cancer
- Dosage: 500–2000mg for benefits
- Suggestion: ¼ teaspoon per day is sufficient for benefits; ½ teaspoon dropped into the water when cooking rice will infuse the rice with turmeric (which is very water-soluble), turn the rice a pretty golden color, and not affect the flavor. Throw in some black pepper as it increases the bioavailability of curcumin up to 2000%
- Related main feature: Why Curcumin (Turmeric) Is Worth Its Weight In Gold
Closing notes
The above five spices are very healthful for most people. Personal physiology can and will vary, so if in doubt, a) check with your doctor b) start at lowest doses and establish your tolerance (or lack thereof).
Enjoy, and stay well!
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Four Thousand Weeks – by Oliver Burkeman
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This is not, strictly speaking, a time management book. It’s more a “contemplating mortality and making things count while still doing the necessaries”.
Burkeman’s premise is that we get around 4,000 weeks of life, on average. If we live to 120, it’s more like 6,200. Unlucky souls may have to do the best they can with 1,000 or so.
The book is thought-provoking; consider:
- how was your last week?
- how will your next week be?
- what if it were your last?
Of course, we cannot necessarily liquidate all our assets and spend next week burning out in style, because then the following week comes. So, what’s the solution?
That’s something Burkeman lays out over the course of the book, with key ideas including passion projects and figuring out what can be safely neglected, but there’s far more there than we could sum up here.
Bottom line: if you ever find yourself struggling to balance what is expected of you with what is of value to you, this book can help you get the most out of your choices.
Click here to check out Four Thousand Weeks, and make yours count!
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How Regularity Of Sleep Can Be Even More Important Than Duration
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A recent, large (n=72,269) 8-year prospective* observational study of adults aged 40-79 has found an association between irregular sleep and major cardiovascular events.
*this means they started the study at a given point, and measured what happened for the next eight years—as opposed to a retrospective study, which would look at what had happened during the previous 8 years.
As to what qualifies as major cardiovascular events, they counted:
- Heart attack
- Cardiac arrest
- Stroke
- Cardiovascular death (any)
Irregular sleep, meanwhile, was defined per a bell curve of participants. Based on a sleep regularity index (SRI) score, those with a score of 87 or more were on the “regular” side of the curve, and those with a score of 72 or lower were on the “irregular” side of the curve.
What they found is that irregular sleep is associated with major cardiovascular events, regardless of the actual amount of sleep that people got. So in other words, you could be sleeping 9 hours per day, but if it’s a different 9 hours each day, your cardiovascular risk will still be higher.
How much higher?
- For those in the middle of the curve (so, moderate irregularity), it was 8% higher than those on the “regular” side.
- For those on the “irregular” side of the curve, it was 26% higher than those on the “regular” side.
All of the above is after taking into account confounding variables such as age, physical activity levels, discretionary screen time, fruit, vegetable, and coffee intake, alcohol consumption, smoking, mental health issues, medication use, and shift work. Which is quite something, given that shift work is a very common reason for irregular sleep schedules in a lot of people.
Limitations
While, as noted above, they did their best to account for a lot of things, this was an observational study, not an interventional study or a randomized controlled trial, and as such, it cannot truly establish cause and effect.
For example, an observational study in the 90s found that the sport most strongly associated with longevity was polo. For any unfamiliar, it’s a game played on horseback with mallets and balls. Why was this game so much better than, say, swimming? And the answer is most likely that polo is played almost entirely by very rich people. It wasn’t the sport that enhanced longevity—it was the wealth.
So similarly here, it could be for example that people who are predisposed to heart conditions, are prone to having irregular schedules. We won’t know for sure until we have interventional studies (and we probably can’t get RCTs for this, for practical reasons).
Still, it seems likely that the association is indeed causal, in which case, having a regular sleep schedule if at all possible seems like a very good way to look after one’s health.
You can read more about the study here:
Irregular sleep may elevate risk of major cardiovascular events
Practical take-away
This study strongly suggests that sleep regularity is even more important than sleep duration.
This means that there is extra reason to not sleep in past one’s normal getting-up time, even if one had a less restful night.
That’s the end of sleep that’s the most important in practical terms, too, because we can control our getting-up time, whereas we can’t really control our going-to-sleep time, because it’s perfectly possible to just lie there awake.
So, controlling the getting-up time is really the key to the whole thing. See also:
Calculate (And Enjoy) The Perfect Night’s Sleep
And for scope, you might enjoy reading:
Morning Larks vs Night Owls: How Much Can We Control Our Sleep Schedule?
Enjoy!
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PlantYou: Scrappy Cooking – by Carleigh Bodrug
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This is a book that took “whole foods plant-based diet” and ran with it.
“Whole foods”, you say? Carleigh Bodrug has you covered in this guide to using pretty much everything.
One of the greatest strengths of the book is its “Got this? Make that” section, for using up those odds and ends that you’d normally toss.
You may be thinking: “ok, but if to use this unusual ingredient I have to buy four other ingredients to make this recipe, generating waste from those other ingredients, then this was a bad idea”, but fear not.
Bodrug covers that too, and in many cases leftover “would get wasted” ingredients can get turned into stuff that can go into longer-term storage one way or another, to use at leisure.
Which also means that on the day “there’s nothing in the house to eat” and you don’t want to go grocery-shopping, or if some global disaster causes the supply lines to fail and the stores become empty (that could never happen though, right?), you will have the mystical ability to conjure a good meal out of assorted odds and ends that you stored because of this book.
Bottom line: if you love food and hate food waste, this is a great book for you.
Click here to check out Scrappy Cooking, and do domestic magic!
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The Sucralose News: Scaremongering Or Serious?
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What’s the news on sucralose?
These past days the press has been abuzz with frightening tales:
- This Common Artificial Sweetener Can Break Down DNA, Scientists Warn
- Sucralose Damages DNA, Linked to Leaky Gut
- Chemical found in common sweetener damages DNA
- Chemical found in widely used sweetener breaks up DNA
- Chemical from Splenda breaks up DNA
How true and/or serious is this?
Firstly, let’s manage expectations. Pineapple juice also breaks down DNA, but is not generally considered a health risk. So let’s keep that in mind, while we look into the science.
Is sucralose as scary as pineapple juice, or is it something actually dangerous?
The new study (that sparked off these headlines)
The much-referenced study is publicly available to read in full—here it is:
You may notice that this doesn’t have quite the snappy punchiness of some of the headlines, but let’s break this down, if you’ll pardon the turn of phrase:
- Toxicological: pertaining to whether or not it has toxic qualities
- Pharmacokinetic: the science of asking, of chemicals in bodies, “where did it come from; where did it go; what could it do there; what can we know?”
- Sucralose-6-acetate: an impurity that can be found in sucralose. For perspective, the study found that the sucralose in Splenda contained “up to” 0.67% sucralose-6-acetate.
- Sucralose: a modified form of sucrose, that makes it hundreds of times sweeter, and non-caloric because the body cannot break it down so it’s treated as a dietary fiber and just passes through
- In vitro: things are happening in petri dishes, not in animals (human or otherwise), which would be called “in vivo”
- Screening assays: “we set up a very closed-parameters chemical test, to see what happens when we add this to this” ⇽ oversimplification, but this is the basic format of a screening assay
Great, now we understand the title, but what about the study?
Researchers looked primarily at the effects of sucralose-6-acetate and sucralose (together and separately) on epithelial cells (these are very simple cells that are easy to study; conveniently, they are also most of what makes up our intestinal walls). For this, they used a fancy way of replicating human intestinal walls, that’s actually quite fascinating but beyond the scope of today’s newsletter. Suffice it to say: it’s quite good, and/but has its limitations too. They also looked at some in vivo rat studies.
What they found was…
Based on samples from the rat feces (somehow this didn’t make it into the headlines), it appears that sucralose may be acetylated in the intestines. What that means is that we, if we are like the rats (definitely not a given, but a reasonable hypothesis), might convert up to 10% of sucralose into sucralose-6-acetate inside us. Iff we do, the next part of the findings become more serious.
Based on the in vitro simulations, both sucralose and sucralose-6-acetate reduced intestinal barrier integrity at least a little, but sucralose-6-acetate was the kicker when it came to most of the effects—at least, so we (reasonably!) suppose.
Basically, there’s a lot of supposition going on here but the suppositions are reasonable. That’s how science works; there’s usually little we can know for sure from a single study; it’s when more studies roll in that we start to get a more complete picture.
What was sucralose-6-acetate found to do? It increased the expression of genes associated with inflammation, oxidative stress, and cancer (granted those three things generally go together). So that’s a “this probably has this end result” supposition.
More concretely, and which most of the headlines latched onto, it was found (in vitro) to induce cytogenic damage, specifically, of the clastogenic variety (produces DNA strand breaks—so this is different than pineapple’s bromelain and DNA-helicase’s relatively harmless unzipping of genes).
The dose makes the poison
So, how much is too much and is that 0.67% something to worry about?
- Remembering the rat study, it may be more like 10% once our intestines have done their thing. Iff we’re like rats.
- But, even if it’s only 0.67%, this will still be above the “threshold of toxicological concern for genotoxicity”, of 0.15µg/person/day.
- On the other hand, the fact that these were in vitro studies is a serious limitation.
- Sometimes something is very dangerous in vitro, because it’s being put directly onto cells, whereas in vivo we may have mechanisms for dealing with that.
We won’t know for sure until we get in vivo studies in human subjects, and that may not happen any time soon, if ever, depending on the technical limitations and ethical considerations that sometimes preclude doing certain studies in humans.
Bottom line:
- The headlines are written to be scary, but aren’t wrong; their claims are fundamentally true
- What that means for us as actual humans may not be the same, however; we don’t know yet
- For now, it is probably reasonable to avoid sucralose just in case
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The Herbal Supplement That Rivals Prozac
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Flower Power: St. John’s Wort’s Drug-Level Effectiveness
St. John’s wort is a small yellow flower, extract of which can be bought inexpensively off-the-shelf in pretty much any pharmacy in most places.
It’s sold and used as a herbal mood-brightener.
Does it work?
Yes! It’s actually very effective. This is really uncontroversial, so we’ll keep it brief.
The main findings of studies are that St. John’s wort not only gives significant benefits over placebo, but also works about as well as prescription anti-depressants:
A systematic review of St. John’s wort for major depressive disorder
They also found that fewer people stop taking it, compared to how many stop taking antidepressants. It’s not known how much of this is because of its inexpensive, freely-accessible nature, and how much might be because it gave them fewer adverse side effects:
Clinical use of Hypericum perforatum (St John’s wort) in depression: A meta-analysis
How does it work?
First and foremost, it’s an SSRI—a selective serotonin reuptake inhibitor. Basically, it doesn’t add serotonin, but it makes whatever serotonin you have, last longer. Same as most prescription antidepressants. It also affects adenosine and GABA pathways, which in lay terms, means it promotes feelings of relaxation, in a similar way to many prescription antianxiety medications.
Mechanism of action of St John’s wort in depression: what is known?
Any problems we should know about?
Yes, definitely. To quote directly from the National Center for Complementary and Integrative Health:
St. John’s wort can weaken the effects of many medicines, including crucially important medicines such as:
- Antidepressants
- Birth control pills
- Cyclosporine, which prevents the body from rejecting transplanted organs
- Some heart medications, including digoxin and ivabradine
- Some HIV drugs, including indinavir and nevirapine
- Some cancer medications, including irinotecan and imatinib
- Warfarin, an anticoagulant (blood thinner)
- Certain statins, including simvastatin
I’ve read all that, and want to try it!
As ever, we don’t sell it (or anything else), but here’s an example product on Amazon.
Please be safe and do check with your doctor and/or pharmacist, though!
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Ricezempic: is there any evidence this TikTok trend will help you lose weight?
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If you spend any time looking at diet and lifestyle content on social media, you may well have encountered a variety of weight loss “hacks”.
One of the more recent trends is a home-made drink called ricezempic, made by soaking uncooked rice and then straining it to drink the leftover starchy water. Sounds delicious, right?
Its proponents claim it leads to weight loss by making you feel fuller for longer and suppressing your appetite, working in a similar way to the sought-after drug Ozempic – hence the name.
So does this drink actually mimic the weight loss effects of Ozempic? Spoiler alert – probably not. But let’s look at what the evidence tells us.
New Africa/Shutterstock How do you make ricezempic?
While the recipe can vary slightly depending on who you ask, the most common steps to make ricezempic are:
- soak half a cup of white rice (unrinsed) in one cup of warm or hot water up to overnight
- drain the rice mixture into a fresh glass using a strainer
- discard the rice (but keep the starchy water)
- add the juice of half a lime or lemon to the starchy water and drink.
TikTokers advise that best results will happen if you drink this concoction once a day, first thing in the morning, before eating.
The idea is that the longer you consume ricezempic for, the more weight you’ll lose. Some claim introducing the drink into your diet can lead to a weight loss of up to 27 kilograms in two months.
Resistant starch
Those touting ricezempic argue it leads to weight loss because of the resistant starch rice contains. Resistant starch is a type of dietary fibre (also classified as a prebiotic). There’s no strong evidence it makes you feel fuller for longer, but it does have proven health benefits.
Studies have shown consuming resistant starch may help regulate blood sugar, aid weight loss and improve gut health.
Research has also shown eating resistant starch reduces the risk of obesity, diabetes, heart disease and other chronic diseases.
Ricezempic is made by soaking rice in water. Kristi Blokhin/Shutterstock Resistant starch is found in many foods. These include beans, lentils, wholegrains (oats, barley, and rice – particularly brown rice), bananas (especially when they’re under-ripe or green), potatoes, and nuts and seeds (particularly chia seeds, flaxseeds and almonds).
Half a cup of uncooked white rice (as per the ricezempic recipe) contains around 0.6 grams of resistant starch. For optimal health benefits, a daily intake of 15–20 grams of resistant starch is recommended. Although there is no concrete evidence on the amount of resistant starch that leaches from rice into water, it’s likely to be significantly less than 0.6 grams as the whole rice grain is not being consumed.
Ricezempic vs Ozempic
Ozempic was originally developed to help people with diabetes manage their blood sugar levels but is now commonly used for weight loss.
Ozempic, along with similar medications such as Wegovy and Trulicity, is a glucagon-like peptide-1 (GLP-1) receptor agonist. These drugs mimic the GLP-1 hormone the body naturally produces. By doing so, they slow down the digestive process, which helps people feel fuller for longer, and curbs their appetite.
While the resistant starch in rice could induce some similar benefits to Ozempic (such as feeling full and therefore reducing energy intake), no scientific studies have trialled ricezempic using the recipes promoted on social media.
Ozempic has a long half-life, remaining active in the body for about seven days. In contrast, consuming one cup of rice provides a feeling of fullness for only a few hours. And simply soaking rice in water and drinking the starchy water will not provide the same level of satiety as eating the rice itself.
Other ways to get resistant starch in your diet
There are several ways to consume more resistant starch while also gaining additional nutrients and vitamins compared to what you get from ricezempic.
1. Cooked and cooled rice
Letting cooked rice cool over time increases its resistant starch content. Reheating the rice does not significantly reduce the amount of resistant starch that forms during cooling. Brown rice is preferable to white rice due to its higher fibre content and additional micronutrients such as phosphorus and magnesium.
2. More legumes
These are high in resistant starch and have been shown to promote weight management when eaten regularly. Why not try a recipe that has pinto beans, chickpeas, black beans or peas for dinner tonight?
3. Cooked and cooled potatoes
Cooking potatoes and allowing them to cool for at least a few hours increases their resistant starch content. Fully cooled potatoes are a rich source of resistant starch and also provide essential nutrients like potassium and vitamin C. Making a potato salad as a side dish is a great way to get these benefits.
In a nutshell
Although many people on social media have reported benefits, there’s no scientific evidence drinking rice water or “ricezempic” is effective for weight loss. You probably won’t see any significant changes in your weight by drinking ricezempic and making no other adjustments to your diet or lifestyle.
While the drink may provide a small amount of resistant starch residue from the rice, and some hydration from the water, consuming foods that contain resistant starch in their full form would offer significantly more nutritional benefits.
More broadly, be wary of the weight loss hacks you see on social media. Achieving lasting weight loss boils down to gradually adopting healthy eating habits and regular exercise, ensuring these changes become lifelong habits.
Emily Burch, Accredited Practising Dietitian and Lecturer, Southern Cross University and Lauren Ball, Professor of Community Health and Wellbeing, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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