Grapefruit vs Lemon – Which is Healthier?
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Our Verdict
When comparing grapefruit to lemon, we picked the lemon.
Why?
Grapefruit has its merits, but in the battle of the citrus fruits, lemons come out on top nutritionally:
In terms of macros, grapefruit has more carbs while lemons have more fiber. So, while both have a low glycemic index, lemon is still the winner by the numbers.
Looking at the vitamins, here we say grapefruit’s strengths: grapefruit has more of vitamins A, B2, B3, and choline, while lemon has more of vitamins B6 and C. So, a 4:2 win for grapefruit here.
In the category of minerals, lemons retake the lead: grapefruit has more zinc, while lemon has more calcium, copper, iron, manganese, and selenium.
One final consideration that’s not shown in the nutritional values, is that grapefruit contains high levels of furanocoumarin, which can inhibit cytochrome P-450 3A4 isoenzyme and P-glycoptrotein transporters in the intestine and liver—slowing down their drug metabolism capabilities, thus effectively increasing the bioavailability of many drugs manifold.
This may sound superficially like a good thing (improving bioavailability of things we want), but in practice it means that in the case of many drugs, if you take them with (or near in time to) grapefruit or grapefruit juice, then congratulations, you just took an overdose. This happens with a lot of meds for blood pressure, cholesterol (including statins), calcium channel-blockers, anti-depressants, benzo-family drugs, beta-blockers, and more. Oh, and Viagra, too. Which latter might sound funny, but remember, Viagra’s mechanism of action is blood pressure modulation, and that is not something you want to mess around with unduly. So, do check with your pharmacist to know if you’re on any meds that would be affected by grapefruit or grapefruit juice!
PS: the same substance is quite available in pummelos and sour oranges (but not meaningfully in sweet oranges); you can see a chart here showing the relative furanocoumarin contents of many citrus fruits, or lack thereof as the case may be, as it is for lemons and most limes)
Adding up the sections gives us a clear win for lemons, but by all means enjoy either or both; just watch out for that furanocoumarin content of grapefruit if you’re on any meds affected by such (again, do check with your pharmacist, as our list was far from exhaustive—and yes, this question is one that a pharmacist will answer more easily and accurately than a doctor will).
Want to learn more?
You might like to read:
Top 8 Fruits That Prevent & Kill Cancer ← citrus fruits in general make the list; they inhibit tumor growth and kill cancer cells; regular consumption is also associated with a lower cancer risk 🙂
Enjoy!
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The Brain Alarm Signs That Warn Of Dementia
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.
When it comes to predicting age-related cognitive impairment:
First there are genetic factors to take into account (such as the APOE4 gene for Alzheimer’s), as well as things such as age and sex.
When it comes to sex, by the way, what matters here is hormones, which is why [it seems; this as technically as yet unproven with full rigor, but the hypothesis is sound and there is a body of evidence gradually being accumulated to support it] postmenopausal women with untreated menopause get Alzheimer’s at a higher rate and deteriorate more quickly:
Alzheimer’s Sex Differences May Not Be What They Appear
Next, there are obviously modifiable lifestyle factors to take into account, things that will reduce your risk such as getting good sleep, good diet, good exercise, and abstaining from alcohol and smoking, as well as oft-forgotten things such as keeping cognitively active and, equally importantly, socially active:
How To Reduce Your Alzheimer’s Risk
(the article outlines what matters the most in each of the above areas, by the way, so that you can get the most bang-for-buck in terms of lifestyle adjustments)
Lastly (in the category of risk factors), there are things to watch out for in the blood such as hypertension and high cholesterol.
Nipping it in the blood
In new research (so new it is still ongoing, but being at year 2 of a 4-year prospective study, they have published a paper with their results so far), researchers have:
- started with the premise “dementia is preceded by mild cognitive impairment”
- then, asked the question “what are the biometric signs of mild cognitive impairment?”
Using such tools as functional near-infrared spectroscopy (fNIRS) while the participants performed cognitive tasks, they were able to record changes in plasma levels of extracellular vesicles, assessing them with small-particle flow cytometry.
Translating from sciencese: they gave the participants mental tasks, and while they completed them, the researchers scanned their brains and monitored blood flow and the brain’s ability to compensate for any lack of it.
What they found:
- in young adults, blood flow increased, facilitating neurovascular coupling (this is good)
- in older adults, blood flow did not increase as much, but they engaged other areas of the brain to compensate, by what’s called functional connectivity (this is next best)
- in those with mild cognitive impairment, blood flow was reduced, and they did not have the ability to compensate by functional connectivity (this is not good)
They also performed a liquid biopsy, which sounds alarming but it just means they took some blood, and tested this for density of cerebrovascular endothelial extracellular vesicles (CEEVs), which—in more prosaic words—are bits from the cells lining the blood vessels in the brain.
People with mild cognitive impairment had more of these brain bits in their blood than those without.
You can read the paper itself here:
What this means
The science here is obviously still young (being as it is still in progress), but this will likely contribute greatly to early warning signs of dementia, by catching mild cognitive impairment in its early stages, by means of a simple blood test, instead of years of wondering before getting a dementia diagnosis.
And of course, forewarned is forearmed, so if this is something that could be done as a matter of routine upon hitting the age of, say, 65 and then periodically thereafter, it would catch a lot of cases while there’s still more time to turn things around.
As for how to turn things around, well, we imagine you have now read our “How To Reduce Your Alzheimer’s Risk” article linked up top (if not, we recommend checking it out), and there is also…
Do Try This At Home: The 12-Week Brain Fitness Program To Measurably Boost Your Brain
Take care!
When it comes to predicting age-related cognitive impairment:
First there are genetic factors to take into account (such as the APOE4 gene for Alzheimer’s), as well as things such as age and sex.
When it comes to sex, by the way, what matters here is hormones, which is why [it seems; this as technically as yet unproven with full rigor, but the hypothesis is sound and there is a body of evidence gradually being accumulated to support it] postmenopausal women with untreated menopause get Alzheimer’s at a higher rate and deteriorate more quickly:
Alzheimer’s Sex Differences May Not Be What They Appear
Next, there are obviously modifiable lifestyle factors to take into account, things that will reduce your risk such as getting good sleep, good diet, good exercise, and abstaining from alcohol and smoking, as well as oft-forgotten things such as keeping cognitively active and, equally importantly, socially active:
How To Reduce Your Alzheimer’s Risk
(the article outlines what matters the most in each of the above areas, by the way, so that you can get the most bang-for-buck in terms of lifestyle adjustments)
Lastly (in the category of risk factors), there are things to watch out for in the blood such as hypertension and high cholesterol.
Nipping it in the blood
In new research (so new it is still ongoing, but being at year 2 of a 4-year prospective study, they have published a paper with their results so far), researchers have:
- started with the premise “dementia is preceded by mild cognitive impairment”
- then, asked the question “what are the biometric signs of mild cognitive impairment?”
Using such tools as functional near-infrared spectroscopy (fNIRS) while the participants performed cognitive tasks, they were able to record changes in plasma levels of extracellular vesicles, assessing them with small-particle flow cytometry.
Translating from sciencese: they gave the participants mental tasks, and while they completed them, the researchers scanned their brains and monitored blood flow and the brain’s ability to compensate for any lack of it.
What they found:
- in young adults, blood flow increased, facilitating neurovascular coupling (this is good)
- in older adults, blood flow did not increase as much, but they engaged other areas of the brain to compensate, by what’s called functional connectivity (this is next best)
- in those with mild cognitive impairment, blood flow was reduced, and they did not have the ability to compensate by functional connectivity (this is not good)
They also performed a liquid biopsy, which sounds alarming but it just means they took some blood, and tested this for density of cerebrovascular endothelial extracellular vesicles (CEEVs), which—in more prosaic words—are bits from the cells lining the blood vessels in the brain.
People with mild cognitive impairment had more of these brain bits in their blood than those without.
You can read the paper itself here:
What this means
The science here is obviously still young (being as it is still in progress), but this will likely contribute greatly to early warning signs of dementia, by catching mild cognitive impairment in its early stages, by means of a simple blood test, instead of years of wondering before getting a dementia diagnosis.
And of course, forewarned is forearmed, so if this is something that could be done as a matter of routine upon hitting the age of, say, 65 and then periodically thereafter, it would catch a lot of cases while there’s still more time to turn things around.
As for how to turn things around, well, we imagine you have now read our “How To Reduce Your Alzheimer’s Risk” article linked up top (if not, we recommend checking it out), and there is also…
Do Try This At Home: The 12-Week Brain Fitness Program To Measurably Boost Your Brain
Take care!
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Why 7 Hours Sleep Is Not Enough
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How Sleep-Deprived Are You, Really?
This is Dr. Matthew Walker. He’s a neuroscientist and sleep specialist, and is the Director of the Center for Human Sleep Science at UC Berkeley’s Department of Psychology. He’s also the author of the international bestseller “Why We Sleep”.
What does he want us to know?
Sleep deprivation is more serious than many people think it is. After about 16 hours without sleep, the brain begins to fail, and needs more than 7 hours of sleep to “reset” cognitive performance.
Note: note “seven or more”, but “more than seven”.
After ten days with only 7 hours sleep (per day), Dr. Walker points out, the brain is as dysfunctional as it would be after going without sleep for 24 hours.
Here’s the study that sparked a lot of Dr. Walker’s work:
Importantly, in Dr. Walker’s own words:
❝Three full nights of recovery sleep (i.e., more nights than a weekend) are insufficient to restore performance back to normal levels after a week of short sleeping❞
~ Dr. Matthew Walker
See also: Why You Probably Need More Sleep
Furthermore: the sleep-deprived mind is unaware of how sleep-deprived it is.
You know how a drunk person thinks they can drive safely? It’s like that.
You do not know how sleep-deprived you are, when you are sleep-deprived!
For example:
❝(60.7%) did not signal sleepiness before a sleep fragment occurred in at least one of the four MWT trials❞
Source: Sleepiness is not always perceived before falling asleep in healthy, sleep-deprived subjects
Sleep efficiency matters
With regard to the 7–9 hours band for optimal health, Dr. Walker points out that the sleep we’re getting is not always the sleep we think we’re getting:
❝Assuming you have a healthy sleep efficiency (85%), to sleep 9 hours in terms of duration (i.e. to be a long-sleeper), you would need to be consistently in bed for 10 hours and 36 minutes a night. ❞
~ Dr. Matthew Walker
At the bottom end of that, by the way, doing the same math: to get only the insufficient 7 hours sleep discussed earlier, a with a healthy 85% sleep efficiency, you’d need to be in bed for 8 hours and 14 minutes per night.
The unfortunate implication of this: if you are consistently in bed for 8 hours and 14 minutes (or under) per night, you are not getting enough sleep.
“But what if my sleep efficiency is higher than 85%?”
It shouldn’t be.If your sleep efficiency is higher than 85%, you are sleep-deprived and your body is having to enforce things.
Want to know what your sleep efficiency is?
We recommend knowing this, by the way, so you might want to check out:
Head-To-Head Comparison of Google and Apple’s Top Sleep-Monitoring Apps
(they will monitor your sleep and tell you your sleep efficiency, amongst other things)
Want to know more?
You might like his book:
Why We Sleep: Unlocking the Power of Sleep and Dreams
…and/or his podcast:
…and for those who like videos, here’s his (very informative) TED talk:
Prefer text? Click here to read the transcript
Want to watch it, but not right now? Bookmark it for later
Enjoy!
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Proteinaholic – by Dr. Garth Davis
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Protein is important, yes. However, you can have too much of a good thing, and you can also get it from bad sources that do more harm than good.
That’s what this book is about, and how to go about understanding the science in a world where marketing has outstripped the conclusions of research scientists.
Firstly, let’s mention that Dr. Davis’ main issue here is (as the subtitle suggests) about animal proteins, not plant-based proteins. The former are associated with very many health risks that the latter are not. And yes, even just the lean protein, not considering the animal fat.
He does not argue that the reader must, or even necessarily needs to, adopt a vegan diet. However, he does argue for minimizing animal proteins, and getting more plants in.
A lot of the book is about the research to back this approach, and specifically, it’s largely a polemic against animal protein. He also shares anecdotes throughout, about his own health journey—from an overweight cheeseburger-fueled heart attack machine with exciting cholesterol levels, to a healthy, muscular, plant-fueled advocate for healthier eating.
He talks us through the science at hand, including chapters for each of the main health risks associated with meat consumption, as well as how the science got misrepresented by popular marketing for [not necessarily, but usually] meat-heavy diets such as Atkins and Paleo. That yes, they will give short term weight loss, but bring extra health risks in the longer term, and how.
Bottom line: if you’d like to cut down your meat consumption but worry “will I get enough protein?”, this book will set your mind at ease with an abundance of science.
Click here to check out Proteinaholic, and give your body better!
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Managing Sibling Relationships In Adult Life
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Managing Sibling Relationships In Adult Life
After our previous main feature on estrangement, a subscriber wrote to say:
❝Parent and adult child relationships are so important to maintain as you age, but what about sibling relationships? Adult choices to accept and move on with healthier boundaries is also key for maintaining familial ties.❞
And, this is indeed critical for many of us, if we have siblings!
Writer’s note: I don’t have siblings, but I do happen to have one of Canada’s top psychologists on speed-dial, and she has more knowledge about sibling relationships than I do, not to mention a lifetime of experience both personally and professionally. So, I sought her advice, and she gave me a lot to work with.
Today I bring her ideas, distilled into my writing, for 10almonds’ signature super-digestible bitesize style.
A foundation of support
Starting at the beginning of a sibling story… Sibling relationships are generally beneficial from the get-go.
This is for reasons of mutual support, and an “always there” social presence.
Of course, how positive this experience is may depend on there being a lack of parental favoritism. And certainly, sibling rivalries and conflict can occur at any age, but the stakes are usually lower, early in life.
Growing warmer or colder
Generally speaking, as people age, sibling relationships likely get warmer and less conflictual.
Why? Simply put, we mature and (hopefully!) get more emotionally stable as we go.
However, two things can throw a wrench into the works:
- Long-term rivalries or jealousies (e.g., “who has done better in life”)
- Perceptions of unequal contribution to the family
These can take various forms, but for example if one sibling earns (or otherwise has) much more or much less than another, that can cause resentment on either or both sides:
- Resentment from the side of the sibling with less money: “I’d look after them if our situations were reversed; they can solve my problems easily; why do they resent that and/or ignore my plight?”
- Resentment from the side of the sibling with more money: “I shouldn’t be having to look after my sibling at this age”
It’s ugly and unpleasant. Same goes if the general job of caring for an elderly parent (or parents) falls mostly or entirely on one sibling. This can happen because of being geographically closer or having more time (well… having had more time. Now they don’t, it’s being used for care!).
It can also happen because of being female—daughters are more commonly expected to provide familial support than sons.
And of course, that only gets exacerbated as end-of-life decisions become relevant with regard to parents, and tough decisions may need to be made. And, that’s before looking at conflicts around inheritance.
So, all that seems quite bleak, but it doesn’t have to be like that.
Practical advice
As siblings age, working on communication about feelings is key to keeping siblings close and not devolving into conflict.
Those problems we talked about are far from unique to any set of siblings—they’re just more visible when it’s our own family, that’s all.
So: nothing to be ashamed of, or feel bad about. Just, something to manage—together.
Figure out what everyone involved wants/needs, put them all on the table, and figure out how to:
- Make sure outright needs are met first
- Try to address wants next, where possible
Remember, that if you feel more is being asked of you than you can give (in terms of time, energy, money, whatever), then this discussion is a time to bring that up, and ask for support, e.g.:
“In order to be able to do that, I would need… [description of support]; can you help with that?”
(it might even sometimes be necessary to simply say “No, I can’t do that. Let’s look to see how else we can deal with this” and look for other solutions, brainstorming together)
Some back-and-forth open discussion and even negotiation might be necessary, but it’s so much better than seething quietly from a distance.
The goal here is an outcome where everyone’s needs are met—thus leveraging the biggest strength of having siblings in the first place:
Mutual support, while still being one’s own person. Or, as this writer’s psychology professor friend put it:
❝Circling back to your original intention, this whole discussion adds up to: siblings can be very good or very bad for your life, depending on tons of things that we talked about, especially communication skills, emotional wellness of each person, and the complexity of challenges they face interdependently.❞
Our previous main feature about good communication can help a lot:
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It’s Not You, It’s Your Hormones – by Nicki Williams, DipION, mBANT, CNHC
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.
So, first a quick note: this book is very similar to the popular bestseller “The Galveston Diet”, not just in content, but all the way down to its formatting. Some Amazon reviewers have even gone so far as to suggest that “It’s Not You, It’s Your Hormones” (2017) brazenly plagiarized “The Galveston Diet” (2023). However, after carefully examining the publication dates, we feel quite confident that this book is not a copy of the one that came out six years after it. As such, we’ve opted for reviewing the original book.
Nicki Williams’ basic principle is that we can manage our hormonal fluctuations, by managing our diet. Specifically, in three main ways:
- Intermittent fasting
- Anti-inflammatory diet
- Eating more protein and healthy fats
Why should these things matter to our hormones? The answer is to remember that our hormones aren’t just the sex hormones. We have hormones for hunger and satedness, hormones for stress and relaxation, hormones for blood sugar regulation, hormones for sleep and wakefulness, and more. These many hormones make up our endocrine system, and affecting one part of it will affect the others.
Will these things magically undo the effects of the menopause? Well, some things yes, other things no. No diet can do the job of HRT. But by tweaking endocrine system inputs, we can tweak endocrine system outputs, and that’s what this book is for.
The style is very accessible and clear, and Williams walks us through the changes we may want to make, to avoid the changes we don’t want.
In the category of criticism, there is some extra support that’s paywalled, in the sense that she wants the reader to buy her personally-branded online plan, and it can feel a bit like she’s holding back in order to upsell to that.
Bottom line: this book is aimed at peri-menopausal and post-menopausal women. It could also definitely help a lot of people with PCOS too, and, when it comes down to it, pretty much anyone with an endocrine system. It’s a well-evidenced, well-established, healthy way of eating regardless of age, sex, or (most) physical conditions.
Click here to check out It’s Not You, It’s Your Hormones, and take control of yours!
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Peaceful Kitchen – by Catherine Perez
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The author, a keen cook and Registered Dietician with a Master’s in same, covers the basics of the science of nutrition as relevant to her recipes, but first and foremost this is not a science textbook—it’s a cookbook, and its pages contain more love for the art than citations for the (perfectly respectable) science.
Mexican and Dominican cuisine are the main influences in this book, but there are dishes from around the world too.
The recipes themselves are… Comparable in difficulty to the things we often feature in our recipes section here at 10almonds. They’re probably not winning any restaurants Michelin stars, but they’re not exactly student survival recipes either. They’re made from mostly non-obscure whole foods, nutritionally-dense ingredients at that, with minimal processed foods involved.
That said, she does take a “add, don’t subtract” approach to nutrition, i.e. focussing more on adding in diversity of plants than on “don’t eat this; don’t eat that” mandates.
If there’s any criticism to be levelled at the book, it’s that in most cases we’d multiply the spices severalfold, but that’s not a big problem as readers can always judge that individually; she’s given the basic information of which spices in which proportions, which is the key knowledge.
Bottom line: if you’re looking to expand your plant-based cooking repertoire, this one is a fine choice.
Click here to check out Peaceful Kitchen, and try some new things!
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