The Paleo Diet
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What’s The Real Deal With The Paleo Diet?
The Paleo diet is popular, and has some compelling arguments for it.
Detractors, meanwhile, have derided Paleo’s inclusion of modern innovations, and have also claimed it’s bad for the heart.
But where does the science stand?
First: what is it?
The Paleo diet looks to recreate the diet of the Paleolithic era—in terms of nutrients, anyway. So for example, you’re perfectly welcome to use modern cooking techniques and enjoy foods that aren’t from your immediate locale. Just, not foods that weren’t a thing yet. To give a general idea:
Paleo includes:
- Meat and animal fats
- Eggs
- Fruits and vegetables
- Nuts and seeds
- Herbs and spices
Paleo excludes:
- Processed foods
- Dairy products
- Refined sugar
- Grains of any kind
- Legumes, including any beans or peas
Enjoyers of the Mediterranean Diet or the DASH heart-healthy diet, or those with a keen interest in nutritional science in general, may notice they went off a bit with those last couple of items at the end there, by excluding things that scientific consensus holds should be making up a substantial portion of our daily diet.
But let’s break it down…
First thing: is it accurate?
Well, aside from the modern cooking techniques, the global market of goods, and the fact it does include food that didn’t exist yet (most fruits and vegetables in their modern form are the result of agricultural engineering a mere few thousand years ago, especially in the Americas)…
…no, no it isn’t. Best current scientific consensus is that in the Paleolithic we ate mostly plants, with about 3% of our diet coming from animal-based foods. Much like most modern apes.
Ok, so it’s not historically accurate. No biggie, we’re pragmatists. Is it healthy, though?
Well, health involves a lot of factors, so that depends on what you have in mind. But for example, it can be good for weight loss, almost certainly because of cutting out refined sugar and, by virtue of cutting out all grains, that means having cut out refined flour products, too:
Diet Review: Paleo Diet for Weight Loss
Measured head-to-head with the Mediterranean diet for all-cause mortality and specific mortality, it performed better than the control (Standard American Diet, or “SAD”), probably for the same reasons we just mentioned. However, it was outperformed by the Mediterranean Diet:
So in lay terms: the Paleo is definitely better than just eating lots of refined foods and sugar and stuff, but it’s still not as good as the Mediterranean Diet.
What about some of the health risk claims? Are they true or false?
A common knee-jerk criticism of the paleo-diet is that it’s heart-unhealthy. So much red meat, saturated fat, and no grains and legumes.
The science agrees.
For example, a recent study on long-term adherence to the Paleo diet concluded:
❝Results indicate long-term adherence is associated with different gut microbiota and increased serum trimethylamine-N-oxide (TMAO), a gut-derived metabolite associated with cardiovascular disease. A variety of fiber components, including whole grain sources may be required to maintain gut and cardiovascular health.❞
Bottom line:
The Paleo Diet is an interesting concept, and certainly can be good for short-term weight loss. In the long-term, however (and: especially for our heart health) we need less meat and more grains and legumes.
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The Inflamed Mind – by Dr. Edward Bullmore
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Firstly, let’s note that this book was published in 2018, so the “radical new” approach is more like “tried and tested and validated” now.
Of course, inflammation in the brain is also linked to Alzheimer’s, Parkinson’s, and other neurodegenerative disorders, but that’s not the main topic here.
Dr. Bullmore, a medical doctor, psychiatrist, and neuroscientist with half the alphabet after his name, knows his stuff. We don’t usually include author bio information here, but it’s also relevant that he has published more than 500 scientific papers and is one of the most highly cited scientists worldwide in neuroscience and psychiatry.
What he explores in this book, with a lot of hard science made clear for the lay reader, is the mechanisms of action of depression treatments that aren’t just SSRIs, and why anti-inflammatory approaches can work for people with “treatment-resistant depression”.
The book was also quite prescient in its various declarations of things he expects to happen in the field in the next five years, because they’ve happened now, five years later.
Bottom line: if you’d like to understand how the mind and body affect each other in the cases of inflammation and depression, with a view to lessening either or both of those things, this is a book for you.
Click here to check out The Inflamed Mind, and take good care of yours!
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Seven and a Half Lessons About the Brain – by Dr. Lisa Feldman Barrett
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We’ve reviewed books about neurology before, and we always try to review books that bring something new/different. So, what makes this one stand out?
Dr. Lisa Feldman Barrett, one of the world’s foremost neuroscientists, starts with an overview of how our unusual brain (definitely our species’ defining characteristic) came to be, and then devotes the rest of the book to mostly practical information.
She explains, in clear terms and without undue jargon, how the brain goes about such things as making constant predictions and useful assumptions about our environment, and reports these things to us as facts—which process is usually useful, and sometimes counterproductive.
We learn about how the apparently mystical trait of empathy works, in real flesh-and-blood terms, and why some kinds of empathy are more metabolically costly than others, and what that means for us all.
Unlike many such books, this one also looks at what is going on in the case of “different minds” that operate very dissimilarly to our own, and how this neurodiversity is important for our species.
Critically, she also looks at what else makes our brains stand out, the symphony of “5 Cs” that aren’t often found to the same extent all in the same species: creativity, communication, copying, cooperation, and compression. This latter being less obvious, but perhaps the most important; Dr. Feldman Barrett explains how we use this ability to layer summaries of our memories, perceptions, and assumptions, to allow us to think in abstractions—something that powers much of what we do that separates us from other animals.
Bottom line: if you’d like to learn more about that big wet organ between your ears, what it does for you, and how it goes about doing it, then this book gives a very practical foundation from which to build.
Click here to check out Seven and a Half Lessons about the Brain, and learn more about yours!
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Remember – by Dr. Lisa Genova
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Memory is often viewed as one thing—either you have a good memory, or you don’t. At best, a lot of people have a vague idea of selective memory. But, the reality is much more complex—and much more interesting.
Dr. Genova lays out clearly and simply the various different kinds of memory, how they work, and how they fail. Some of these kinds of memory operate on completely different principles than others, and/or in different parts of the brain. And, it’s not just “a memory for faces” or a “memory for names”, nor even “short term vs long term”. There’s working memory, explicit and implicit memory, semantic memory, episodic memory, muscle memory, and more.
However, this is not just an interesting book—it’s also a useful one. Dr. Genova also looks at how we can guard against failing memory in later years, and how we can expand and grow the kinds of memory that are most important to us.
The style of the book is very conversational, and not at all textbook-like. It’s certainly very accessible, and pleasant to read too.
Bottom line: memory is a weird and wonderful thing, and this book shines a clear light on many aspects of it—including how to improve the various different kinds of memory.
Click here to check out Remember (we recommend to do it now before you forget!
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The Real Benefit Of Genetic Testing
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Genetic Testing: Health Benefits & Methods
Genetic testing is an oft-derided American pastime, but there’s a lot more to it than finding out about your ancestry!
Note: because there are relatively few companies offering health-related genetic testing services, and we are talking about the benefits of those services, some of this main feature may seem like an advert.
It’s not; none of those companies are sponsoring us, and if any of them become a sponsor at some point, we’ll make it clear and put it in the clearly-marked sponsor segment.
As ever, our only goal here is to provide science-backed information, to enable you to make your own, well-informed, decisions.
Health genomics & genetic testing
The basic goal of health genomics and genetic testing is to learn:
- What genetic conditions you have
- Clearcut genetic conditions, such as Fragile X syndrome, or Huntington’s disease
- What genetic predispositions you have
- Such as an increased/decreased risk for various kinds of cancer, diabetes, heart conditions, and so forth
- What genetic traits you have
- These may range from “blue eyes” to “superathlete muscle type”
- More specifically, pharmacogenomic information
- For example, “fast caffeine metabolizer” or “clopidogrel (Plavix) non-responder” (i.e., that drug simply will not work for you)
Wait, what’s the difference between health genomics and genetic testing?
- Health genomics is the science of how our genes affect our health.
- Genetic testing can be broadly defined as the means of finding out which genes we have.
A quick snippet…
More specifically, a lot of these services look at which single nucleotide polymorphisms (SNPs, pronounced “snips”) we have. While we share almost all of our DNA with each other (and indeed, with most vertebrates), our polymorphisms are the bits that differ, and are the bits that, genetically speaking, make us different.
So, by looking just at the SNPs, it means we “only” need to look at about 3,000,000 DNA positions, and not our entire genome. For perspective, those 3,000,000 DNA positions make up about 0.1% of our whole genome, so without focusing on SNPs, the task would be 1000x harder.
For example, the kind of information that this sort of testing may give you, includes (to look at some “popular” SNPs):
- rs53576 in the oxytocin receptor influences social behavior and personality
- rs7412 and rs429358 can raise the risk of Alzheimer’s disease by more than 10x
- rs6152 can influence baldness
- rs333 resistance to HIV
- rs1800497 in a dopamine receptor may influence the sense of pleasure
- rs1805007 determines red hair and sensitivity to anesthetics
- rs9939609 triggers obesity and type-2 diabetes
- rs662799 prevents weight gain from high fat diets
- rs12255372 linked to type-2 diabetes and breast cancer
- rs1799971 makes alcohol cravings stronger
- rs17822931 determines earwax, sweating and body odor
- rs1333049 coronary heart disease
- rs1051730 and rs3750344 nicotine dependence
- rs4988235 lactose intolerance
(You can learn about these and more than 100,000 other SNPs at SNPedia.com)
I don’t know what SNPs I have, and am disinclined to look them up one by one!
The first step to knowing, is to get your DNA out of your body and into a genetic testing service. This is usually done by saliva or blood sample. This writer got hers done many years ago by 23andMe and was very happy with that service, but there are plenty of other options.
Healthline did an independent review of the most popular companies, so you might like to check out:
Healthline: Best DNA Testing Kits of 2023
Those companies will give you some basic information, such as “6x higher breast cancer risk” or “3x lower age-related macular degeneration risk” etc.
However, to really get bang-for-buck, what you want to do next is:
- Get your raw genetic data (the companies above should provide it); this will probably look like a big text file full of As, Cs, Gs, and Ts, but it make take another form.
- Upload it to Promethease. When this writer got hers done , the cost was $2; that price has now gone up to a whopping $12.
- You will then get a report that will cross-reference your data with everything known about SNPs, and give a supremely comprehensive, readable-to-the-human-eye, explanation of what it all means for you—from much more specific health risk prognostics, to more trivial things like whether you can roll your tongue or smell decomposed asparagus metabolites in urine.
A note on privacy: anything you upload to Promethease will be anonymized, and/but in doing so, you consent to it going into the grand scientific open-source bank of “things we know about the human genome”, and thus contribute to the overall sample size of genetic data.
In our opinion, it means you’re doing your bit for science, without personal risk. But your opinion may differ, and that’s your decision to make.
Lastly, on the pros and cons of pharmacogenetic testing specifically:
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- What genetic conditions you have
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If You’re Poor, Fertility Treatment Can Be Out of Reach
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Mary Delgado’s first pregnancy went according to plan, but when she tried to get pregnant again seven years later, nothing happened. After 10 months, Delgado, now 34, and her partner, Joaquin Rodriguez, went to see an OB-GYN. Tests showed she had endometriosis, which was interfering with conception. Delgado’s only option, the doctor said, was in vitro fertilization.
“When she told me that, she broke me inside,” Delgado said, “because I knew it was so expensive.”
Delgado, who lives in New York City, is enrolled in Medicaid, the federal-state health program for low-income and disabled people. The roughly $20,000 price tag for a round of IVF would be a financial stretch for lots of people, but for someone on Medicaid — for which the maximum annual income for a two-person household in New York is just over $26,000 — the treatment can be unattainable.
Expansions of work-based insurance plans to cover fertility treatments, including free egg freezing and unlimited IVF cycles, are often touted by large companies as a boon for their employees. But people with lower incomes, often minorities, are more likely to be covered by Medicaid or skimpier commercial plans with no such coverage. That raises the question of whether medical assistance to create a family is only for the well-to-do or people with generous benefit packages.
“In American health care, they don’t want the poor people to reproduce,” Delgado said. She was caring full-time for their son, who was born with a rare genetic disorder that required several surgeries before he was 5. Her partner, who works for a company that maintains the city’s yellow cabs, has an individual plan through the state insurance marketplace, but it does not include fertility coverage.
Some medical experts whose patients have faced these issues say they can understand why people in Delgado’s situation think the system is stacked against them.
“It feels a little like that,” said Elizabeth Ginsburg, a professor of obstetrics and gynecology at Harvard Medical School who is president-elect of the American Society for Reproductive Medicine, a research and advocacy group.
Whether or not it’s intended, many say the inequity reflects poorly on the U.S.
“This is really sort of standing out as a sore thumb in a nation that would like to claim that it cares for the less fortunate and it seeks to do anything it can for them,” said Eli Adashi, a professor of medical science at Brown University and former president of the Society for Reproductive Endocrinologists.
Yet efforts to add coverage for fertility care to Medicaid face a lot of pushback, Ginsburg said.
Over the years, Barbara Collura, president and CEO of the advocacy group Resolve: The National Infertility Association, has heard many explanations for why it doesn’t make sense to cover fertility treatment for Medicaid recipients. Legislators have asked, “If they can’t pay for fertility treatment, do they have any idea how much it costs to raise a child?” she said.
“So right there, as a country we’re making judgments about who gets to have children,” Collura said.
The legacy of the eugenics movement of the early 20th century, when states passed laws that permitted poor, nonwhite, and disabled people to be sterilized against their will, lingers as well.
“As a reproductive justice person, I believe it’s a human right to have a child, and it’s a larger ethical issue to provide support,” said Regina Davis Moss, president and CEO of In Our Own Voice: National Black Women’s Reproductive Justice Agenda, an advocacy group.
But such coverage decisions — especially when the health care safety net is involved — sometimes require difficult choices, because resources are limited.
Even if state Medicaid programs wanted to cover fertility treatment, for instance, they would have to weigh the benefit against investing in other types of care, including maternity care, said Kate McEvoy, executive director of the National Association of Medicaid Directors. “There is a recognition about the primacy and urgency of maternity care,” she said.
Medicaid pays for about 40% of births in the United States. And since 2022, 46 states and the District of Columbia have elected to extend Medicaid postpartum coverage to 12 months, up from 60 days.
Fertility problems are relatively common, affecting roughly 10% of women and men of childbearing age, according to the National Institute of Child Health and Human Development.
Traditionally, a couple is considered infertile if they’ve been trying to get pregnant unsuccessfully for 12 months. Last year, the ASRM broadened the definition of infertility to incorporate would-be parents beyond heterosexual couples, including people who can’t get pregnant for medical, sexual, or other reasons, as well as those who need medical interventions such as donor eggs or sperm to get pregnant.
The World Health Organization defined infertility as a disease of the reproductive system characterized by failing to get pregnant after a year of unprotected intercourse. It terms the high cost of fertility treatment a major equity issue and has called for better policies and public financing to improve access.
No matter how the condition is defined, private health plans often decline to cover fertility treatments because they don’t consider them “medically necessary.” Twenty states and Washington, D.C., have laws requiring health plans to provide some fertility coverage, but those laws vary greatly and apply only to companies whose plans are regulated by the state.
In recent years, many companies have begun offering fertility treatment in a bid to recruit and retain top-notch talent. In 2023, 45% of companies with 500 or more workers covered IVF and/or drug therapy, according to the benefits consultant Mercer.
But that doesn’t help people on Medicaid. Only two states’ Medicaid programs provide any fertility treatment: New York covers some oral ovulation-enhancing medications, and Illinois covers costs for fertility preservation, to freeze the eggs or sperm of people who need medical treatment that will likely make them infertile, such as for cancer. Several other states also are considering adding fertility preservation services.
In Delgado’s case, Medicaid covered the tests to diagnose her endometriosis, but nothing more. She was searching the internet for fertility treatment options when she came upon a clinic group called CNY Fertility that seemed significantly less expensive than other clinics, and also offered in-house financing. Based in Syracuse, New York, the company has a handful of clinics in upstate New York cities and four other U.S. locations.
Though Delgado and her partner had to travel more than 300 miles round trip to Albany for the procedures, the savings made it worthwhile. They were able do an entire IVF cycle, including medications, egg retrieval, genetic testing, and transferring the egg to her uterus, for $14,000. To pay for it, they took $7,000 of the cash they’d been saving to buy a home and financed the other half through the fertility clinic.
She got pregnant on the first try, and their daughter, Emiliana, is now almost a year old.
Delgado doesn’t resent people with more resources or better insurance coverage, but she wishes the system were more equitable.
“I have a medical problem,” she said. “It’s not like I did IVF because I wanted to choose the gender.”
One reason CNY is less expensive than other clinics is simply that the privately owned company chooses to charge less, said William Kiltz, its vice president of marketing and business development. Since the company’s beginning in 1997, it has become a large practice with a large volume of IVF cycles, which helps keep prices low.
At this point, more than half its clients come from out of state, and many earn significantly less than a typical patient at another clinic. Twenty percent earn less than $50,000, and “we treat a good number who are on Medicaid,” Kiltz said.
Now that their son, Joaquin, is settled in a good school, Delgado has started working for an agency that provides home health services. After putting in 30 hours a week for 90 days, she’ll be eligible for health insurance.
One of the benefits: fertility coverage.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
Subscribe to KFF Health News’ free Morning Briefing.
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The Web That Has No Weaver – by Ted Kaptchuk
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At 10almonds we have a strong “stick with the science” policy, and that means peer-reviewed studies and (where such exists) scientific consensus.
However, in the spirit of open-minded skepticism (i.e., acknowledging what we don’t necessarily know), it can be worth looking at alternatives to popular Western medicine. Indeed, many things have made their way from Traditional Chinese Medicine (or Ayurveda, or other systems) into Western medicine in any case.
“The Web That Has No Weaver” sounds like quite a mystical title, but the content is presented in the cold light of day, with constant “in Western terms, this works by…” notes.
The author walks a fine line of on the one hand, looking at where TCM and Western medicine may start and end up at the same place, by a different route; and on the other hand, noting that (in a very Daoist fashion), the route is where TCM places more of the focus, in contrast to Western medicine’s focus on the start and end.
He makes the case for TCM being more holistic, and it is, though Western medicine has been catching up in this regard since this book’s publication more than 20 years ago.
The style of the writing is very easy to follow, and is not esoteric in either mysticism or scientific jargon. There are diagrams and other illustrations, for ease of comprehension, and chapter endnotes make sure we didn’t miss important things.
Bottom line: if you’re curious about Traditional Chinese Medicine, this book is the US’s most popular introduction to such, and as such, is quite a seminal text.
Click here to check out The Web That Has No Weaver, and enjoy learning about something new!
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