The Brain-Gut Highway: A Two-Way Street
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The Brain-Gut Two-Way Highway
This is Dr. Emeran Mayer. He has the rather niche dual specialty of being a gastroenterologist and a neurologist. He has published over 353 peer reviewed scientific articles, and he’s a professor in the Departments of Medicine, Physiology, and Psychiatry at UCLA. Much of his work has been pioneering medical research into gut-brain interactions.
We know the brain and gut are connected. What else does he want us to know?
First, that it is a two-way interaction. It’s about 90% “gut tells the brain things”, but it’s also 10% “brain tells the gut things”, and that 10% can make more like a 20% difference, if for example we look at the swing between “brain using that 10% communication to tell gut to do things worse” or “brain using that 10% communication to tell gut to do things better”, vs the midpoint null hypothesis of “what the gut would be doing with no direction from the brain”.
For example, if we are experiencing unmanaged chronic stress, that is going to tell our gut to do things that had an evolutionary advantage 20,000–200,000 years ago. Those things will not help us now. We do not need cortisol highs and adrenal dumping because we ate a piece of bread while stressed.
Read more (by Dr. Mayer): The Stress That Evolution Has Not Prepared Us For
With this in mind, if we want to look after our gut, then we can start before we even put anything in our mouths. Dr. Mayer recommends managing stress, anxiety, and depression from the head downwards as well as from the gut upwards.
Here’s what we at 10almonds have written previously on how to manage those things:
- No-Frills, Evidence-Based Mindfulness
- How To Set Anxiety Aside
- The Mental Health First-Aid You’ll Hopefully Never Need
Do eat for gut health! Yes, even if…
Unsurprisingly, Dr. Mayer advocates for a gut-friendly, anti-inflammatory diet. We’ve written about these things before:
…but there’s just one problem:
For some people, such as with IBS, Crohn’s, and colitis, the Mediterranean diet that we (10almonds and Dr. Mayer) generally advocate for, is inaccessible. If you (if you have those conditions) eat as we describe, a combination of the fiber in many vegetables and the FODMAPs* in many fruits, will give you a very bad time indeed.
*Fermentable Oligo-, Di-, Monosaccharides And Polyols
Dr. Mayer has the answer to this riddle, and he’s not just guessing; he and his team did science to it. In a study with hundreds of participants, he measured what happened with adherence (or not) to the Mediterranean diet (or modified Mediterranean diet) (or not), in participants with IBS (or not).
The results and conclusions from that study included:
❝Among IBS participants, a higher consumption of fruits, vegetables, sugar, and butter was associated with a greater severity of IBS symptoms. Multivariate analysis identified several Mediterranean Diet foods to be associated with increased IBS symptoms.
A higher adherence to symptom-modified Mediterranean Diet was associated with a lower abundance of potentially harmful Faecalitalea, Streptococcus, and Intestinibacter, and higher abundance of potentially beneficial Holdemanella from the Firmicutes phylum.
A standard Mediterranean Diet was not associated with IBS symptom severity, although certain Mediterranean Diet foods were associated with increased IBS symptoms. Our study suggests that standard Mediterranean Diet may not be suitable for all patients with IBS and likely needs to be personalized in those with increased symptoms.❞
In graphical form:
And if you’d like to read more about this (along with more details on which specific foods to include or exclude to get these results), you can do so…
- The study itself (full article): The Association Between a Mediterranean Diet and Symptoms of Irritable Bowel Syndrome
- Dr. Mayer’s blog (lay explanation): The Benefits of a Modified Mediterranean Diet for Irritable Bowel Syndrome
Want to know more?
Dr. Mayer offers many resources, including a blog, books, recipes, podcasts, and even a YouTube channel:
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Blueberry & Banana Collagen Baked Oats
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Good news for vegans/vegetarians! While we include an optional tablespoon of collagen powder in this recipe, the whole recipe is already geared around collagen synthesis, so it’s very collagen-boosting even with just the plants, providing collagen’s building blocks of protein, zinc, and vitamins C and D (your miraculous body will use these to assemble the collagen inside you).
You will need
- 2 cups oats, whence the protein and zinc
- 1 cup milk (your preference what kind; we recommend almond for flavor; whether you choose plant or animal though, it should be fortified with vitamin D)
- 2 bananas, peeled and mashed
- 4 oz blueberries, whence the vitamin C (frozen is fine) (chopped dried apricots are also a fine substitute if that’s more convenient)
- 1 oz flaked almonds, whence the protein and zinc
- 1 tbsp pumpkin seeds, whence the protein and zinc
- 1 tbsp flax seeds, whence the protein and zinc
- Optional: 1 tbsp maple syrup
- Optional: 1 tbsp collagen powder, dissolved in 1 oz hot water
Method
(we suggest you read everything at least once before doing anything)
1) Preheat the oven to 350℉ / 180℃.
2) Mix the oats with 2 cups boiling water; allow to stand for 10–15 minutes, and then drain any excess water.
3) Mix the mashed bananas with the remaining ingredients except the milk and blueberries, stirring thoroughly.
4) Add the softened oats, and stir those in thoroughly too.
5) Add the milk and blueberries, in that order, stirring gently if using fresh blueberries, lest they get crushed.
6) Pour the mixture into an 8″ square cake tin that you have lined with baking paper, and smooth the top.
7) Bake for about 40 minutes or until firm and golden brown. Allow to cool; it will firm up more while it does.
8) Cut into squares or bars, and serve or store for later.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
We Are Such Stuff As Fish Are Made Of ← our main feature about collagen
Take care!
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Tech Bliss – by Clo S., MSc.
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.
The popular idea of a “digital detox” is simple enough, “just unplug!”, they say.
But here in the real world, not only is that often not practical for many of us, it may not always even be entirely desirable. The Internet (and our devices with all their bells and whistles) can be a source of education, joy, and connection!
So, how to find out what’s good for us and what’s not, in our daily digital practices? Clo. S. has answers… Or rather, experiments for us to do and find out for ourselves.
These experiments range from the purely practical “try this to streamline your experience” to the more personal “how does this thing make you feel?”. A lot of the experiments will be performed via your digital devices—some, without! Others are about online interpersonal dynamics, be they one-on-one or navigating a world in which it seems everyone is out to get us, our outrage, and/or our money. Still yet others are about optimizing what you do get from the parts of your digital experience that are enriching for you.
As the title suggests, there are 30 experiments, and it’s not a stretch to do them one per day for a month. But, as the author notes, it’s by no means necessary to do them like that; it’s a workbook and reference guide, not a to-do list!
(On the topic of it being a reference guide…There’s also an extensive tools directory towards the end!)
In short: this is a great book for optimizing your online experience—whatever that might mean for you personally; you can decide for yourself along the way!
Click here to get a copy of Tech Bliss: 30 Experiments For Your Digital Wellness today!
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The Truth About Statins – by Barbara H. Roberts, M.D.
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.
All too often, doctors looking to dispense a “quick fix” will prescribe from their playbook of a dozen or so “this will get you out of my office” drugs. Most commonly, things that treat symptoms rather than the cause. Sometimes, this can be fine! For example, in some cases, painkillers and antidepressants can make a big improvement to people’s lives. What about statins, though?
Prescribed to lower cholesterol, they broadly do exactly that. However…
Dr. Roberts wants us to know that we could be missing the big picture of heart health, and making a potentially fatal mistake.
This is not to say that the book argues that statins are necessarily terrible, or that they don’t have their place. Just, we need to understand what they will and won’t do, and make an informed choice.
To which end, she does advise regards when statins can help the most, and when they may not help at all. She also covers the questions to ask if your doctor wants to prescribe them. And—all so frequently overlooked—the important differences between men’s and women’s heart health, and the implications these have for the efficacy (or not) of statins.
With regard to the “alternatives to cholesterol-lowering drugs” promised in the subtitle… we won’t keep any secrets here:
Dr. Roberts (uncontroversially) recommends the Mediterranean diet. She also provides two weeks’ worth of recipes for such, in the final part of the book.
All in all, an important book to read if you or a loved one are taking, or thinking of taking, statins.
Pick up your copy of The Truth About Statins on Amazon today!
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Parsley vs Spinach – Which is Healthier?
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Our Verdict
When comparing parsley to spinach, we picked the parsley.
Why?
First of all, writer’s anecdote: today’s choice brought to you by a real decision here in my household! You see, a certain dish I sometimes prepare (it’s just a wrap-based dish, nothing fancy) requires a greenery component, and historically I’ve used kale or spinach. Of those two, I prefer kale while my son, who lives (and dines) with me, prefers spinach. However, we both like parsley equally, so I’m going to use that today. But I was curious about how it performed nutritionally, hence today’s comparison!
Ok, now for the stats…
In terms of macros, the only difference is that parsley has more fiber and carbs, for an approximately equal glycemic index, so we’ll go with the one with the highest total fiber, which is parsley.
In the category of vitamins, parsley has more of vitamins B3, B5, B7, B9, C, and K, while spinach has more of vitamins A, B2, B6, E, and choline. So, a marginal 6:5 win for parsley (and in the margins of difference are also in parsley’s favor, for example parsley has 13x the vitamin C, and 2x or 3x the other vitamins it won with, while spinach boasts 2x for some vitamins, and only 1.2x or 1.5x the others).
When it comes to minerals, parsley has more iron, phosphorus, potassium, and zinc, while spinach has more copper, magnesium, manganese, and selenium. So, a 4:4 tie on these.
In terms of phytochemicals, parsley has a much higher polyphenol content (that’s good) while spinach has a much higher oxalate content (that’s neutral for most people, but bad if you have certain kidney problems). So, another win for parsley.
Adding up the sections makes a clear overall win for parsley, but by all means enjoy either or both, unless you are avoiding oxalates, in which case, the oxalates in spinach can be reduced by cooking, but honestly, for most dishes you might as well just pick a different greens option (like parsley, or collard greens if you want something closer to the culinary experience of eating spinach).
Want to learn more?
You might like:
Invigorating Sabzi Khordan ← another great way to enjoy parsley as main ingredient rather than just a seasoning
Enjoy!
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Why Do We Have Crooked Teeth When Our Ancestors Didn’t?
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Evidence shows that people in ancient times typically had straight teeth set well into strong jaws, with even wisdom teeth fitting properly.
So, what went wrong? Did evolution do us a disservice?
Some information to chew on
Transition from hard-to-chew diets to processed, refined foods over millennia has reduced jaw size while tooth size stayed constant. Smaller jaws lead to tooth crowding, crookedness, and impacted wisdom teeth, requiring braces or extractions in modern times.
However, all is not lost!
Studies on non-human animals show softer diets reduce jaw and facial growth, causing dental crowding. In other words: dental crowding is primarily attributed to dietary and lifestyle changes, though genetics may play a role.
And notably, when it comes to humans, populations with less processed diets experience fewer dental problems, suggesting lifestyle modifications could help prevent tooth crowding.
And no, it is not too late. Remember, you are rebuilding your body all the time, including your bones!
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:
The Exercises That Can Fix Sinus Problems (And More) ← this also improves the jaw structure
Take care!
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Delicious Quinoa Avocado Bread
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They’re gluten-free, full of protein and healthy fats, generous with the fiber, easy to make, and tasty too! What’s not to love? Keep this recipe (and its ingredients) handy for next time you want healthy burger buns or similar:
You will need
- 2½ cups quinoa flour
- 2 cups almond flour (if allergic, just substitute more quinoa flour)
- 1 avocado, peeled, pitted, and mashed
- zest and juice of 1 lime
- 2 tbsp ground flaxseed
- 1 tsp baking powder
- ½ tsp MSG or 1 tsp low-sodium salt
- Optional: seeds, oats, or similar for topping the buns
Method
(we suggest you read everything at least once before doing anything)
1) Preheat the oven to 350℉/175℃.
2) Mix the flaxseed with ⅓ cup warm water and set aside.
3) Mix, in a large bowl, the quinoa flour and almond flour with the baking powder and the MSG or salt.
4) Mix, in a separate smaller bowl, the avocado and lime.
5) Add the wet ingredients to the dry, slowly, adding an extra ½ cup water as you do, and knead into a dough.
6) Divide the dough into 4 equal portions, each shaped into a ball and then slightly flattened, to create a burger bun shape. If you’re going to add any seeds or similar as a topping, add those now.
7) Bake them in the oven (on a baking sheet lined with baking paper) for 20–25 minutes. You can check whether they’re done the same way you would a cake, by piercing them to the center with a toothpick and seeing whether it comes out clean.
8) Serve when sufficiently cooled.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Gluten: What’s The Truth?
- Why You Should Diversify Your Nuts!
- Monosodium Glutamate: Sinless Flavor-Enhancer Or Terrible Health Risk?
Take care!
Don’t Forget…
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