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Alyssa Luck

Alyssa Luck

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Therapeutic Diets for IBD

Vitamin A Detox Diet for Ulcerative Colitis and Crohn’s Disease

Alyssa Luck · Jul 9, 2022 · 2 Comments

I have not yet had time to delve as deeply into this theory as I’d like, so in a moment I’ll be directing you to other sources for your own exploration, but I wanted to give a brief introduction to the topic and a few of my own thoughts.

Back in 2014, a man named Grant Genereux (an engineer, unassociated with the science or medical fields) introduced a radical new hypothesis about the underlying cause of eczema, which he later expanded to include all autoimmune diseases and most other “diseases of Western civilization” as well: vitamin A toxicity. He even goes so far as to argue that vitamin A is not a vitamin at all, but a toxin.

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Ketogenic Diet for Ulcerative Colitis and Crohn’s Disease

Alyssa Luck · Mar 22, 2022 · Leave a Comment

Summary: Ketogenic diets have exploded in popularity for weight loss and overall health optimization. While we are still sorely lacking in clinical research on ketogenic diets for IBD, there are a few compelling mechanisms – particularly modulating intestinal immunity and overcoming energy starvation in colonocytes – indicating that ketosis could be a helpful therapeutic strategy for some people. However, there are also some risks, with a potential increase in hydrogen sulfide production being a particular concern since hydrogen sulfide is often already elevated in people with IBD. Therapeutic effects of the diet are likely mediated both metabolically (by emulating fasting) and via the microbiome, but both of these mechanisms appear to be highly context-dependent, contributing to significant disparity in results across the existing literature on ketogenic diets in health and disease. In the context of IBD, my current assessment is that a strict ketogenic diet could be helpful as a short-term strategy for certain people, but is unlikely to be an optimal long-term strategy.

This article is part of the IBD Index. Last updated on April 27, 2022.

As the name would suggest, a ketogenic diet is a diet that promotes the metabolic state of ketosis. This is generally accomplished by consuming very few carbohydrates, a moderate amount of protein, and getting most calories from fat.

Note that I discuss the carnivore diet separately, because while a carnivore diet is necessarily ketogenic, its defining feature is the elimination of all plant foods, which is not necessary on a non-carnivore ketogenic diet.

For information about exogenous ketones (including brands), MCT oil, and some comments about breath vs. urine vs. blood testing for ketosis, check out my article on ketone supplementation.

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Carnivore Diet for Ulcerative Colitis and Crohn’s Disease

Alyssa Luck · Mar 22, 2022 · Leave a Comment

Summary: The carnivore diet has become increasingly popular for everything from weight loss to general health, and many with IBD have reported miraculous results, including one written up and published as a case report. However, a strict carnivore diet (especially with our modern tastes) is not a tried and true strategy for humans: populations that have traditionally subsisted on mostly animal foods do still eat some plant foods, and usually have very specific dietary patterns that most modern carnivores don’t come close to replicating. A carnivore diet could absolutely still be worth trying for IBD, especially if nothing else has worked, but care should be taken to monitor for any issues related to hydrogen sulfide overproduction or metabolism and general health. Certain strategies, such as keeping the fat-to-protein ratio supportive of ketosis and including specific microbiome-supporting foods like cranberries, could help minimize risk and maximize chances of success.

This article is part of the IBD Index. Last updated on April 15, 2022.

The carnivore diet is like the sexier, more exciting cousin of the ketogenic diet (which I covered in the linked post). Rather than hewing to a certain macronutrient ratio, a carnivore diet simply eliminates any food that comes from a plant, only including foods that come from animals. This makes it far simpler to follow, and also more fun (if you’re the type of person who enjoys all the connotations of being a “carnivore” and feeling superior for eschewing lame plant foods).

Many people with IBD have reported miraculous results from adopting a carnivore diet, but many also claim that a stint of carnivore dieting ruined their health. So what are the considerations surrounding a carnivore diet in the context of IBD?

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Autoimmune Protocol (AIP) for Ulcerative Colitis and Crohn’s Disease

Alyssa Luck · Mar 22, 2022 · Leave a Comment

Summary: As the name implies, the Autoimmune Protocol, or AIP, is a therapeutic dietary strategy designed to address autoimmune diseases of all types – including IBD. The AIP addresses both gut and immune health by eliminating all foods that could be immune-activating or disruptive to the gut, and focusing on foods with high nutrient density. The dietary guidelines (including avoidance of grains, legumes, dairy, eggs, nuts and seeds, and nightshades) were already supported by extensive research, but now the AIP as a holistic strategy for IBD is also supported by one uncontrolled clinical trial. Most of my concerns with the diet (specifically surrounding carbohydrate and associated prebiotic content) are being actively addressed by prominent members of the community. As with any strict elimination diet, care should be taken to avoid triggering or exacerbating an unhealthy relationship with food, but overall the AIP is a nutritionally sound diet that has demonstrated success in treating IBD, both anecdotally and clinically.

This article is part of the IBD Index. Last updated on March 22, 2022.

As per my determination to avoid reinventing the wheel, this article primarily consists of links to other resources. The AIP has an extremely robust and scientifically-grounded online community, so while I do hope to one day spend some time comparing/contrasting the various IBD diets (including the AIP), I don’t have much to contribute to the AIP-specific body of knowledge that has not already been contributed by others!

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The Bean Protocol for Ulcerative Colitis and Crohn’s Disease

Alyssa Luck · Mar 17, 2022 · Leave a Comment

Summary: The bean protocol is a nutritional approach that has exploded in popularity as a cure-all for everything from acne to severe Crohn’s disease. The theoretical mechanism of success centers around soluble fiber and its ability to improve detoxification by interrupting enterohepatic circulation. While there are many scientifically sound mechanisms by which this protocol could be beneficial for those with IBD – including support for the liver, nervous system, and microbiome – certain claims are dubious and verge on the pseudoscientific (to be explored in a future post). Overall, the protocol provides an excellent framework for a health-supporting diet and lifestyle for those with IBD, but care should be taken to avoid getting so caught up in the particulars that individual needs or relationship with food are disregarded.

Note: this article is part of the IBD Index. Last updated on July 9, 2022 (added bullet point about vitamin A detox as a potential mechanism).

I’ve personally been experimenting with a bean-protocol-esque diet recently, and I plan to start delving into the science (or pseudoscience) behind it in the near future. Follow me on Instagram for personal content related to the bean protocol, as well as snippets of research as I work on an in-depth “Science Behind the Bean Protocol” blog post.

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Vegan Diets for Ulcerative Colitis and Crohn’s Disease

Alyssa Luck · Mar 16, 2022 · Leave a Comment

Summary: Vegan diets are one popular intervention for IBD, and for good reason – a well-designed vegan diet may confer beneficial effects on intestinal health via modulation of the microbiome, increased nutrient density, and elimination of food irritants. However, diets completely devoid of animal products are not viable long-term for the vast majority of people, and nutritional deficiencies are a serious risk. All the potential health benefits of a vegan diet can still be leveraged within an omnivorous diet, but for those who are vegan for ethical or sustainability reasons, careful supplementation or strategic inclusion of certain nutrient-dense animal foods (such as bivalves) are potential options for avoiding some of the pitfalls.

This article is part of the IBD Index. Last updated on March 16, 2022.

It is well known that high intakes of meat have been associated with IBD (example source; there are many!). And while yes, these are epidemiological studies and no, correlation does not equal causation, I’d consider it a bit disingenuous to brush off these results as a mere artifact of the “healthy user bias” (as many in the keto, carnivore, and paleo communities are wont to do).

I’ll say right at the outset that, on the basis of anthropological, biological, and other scientific knowledge and data, I don’t believe a strict vegan diet to be viable for the vast majority of humans. That said, many people have anecdotally had astonishing success managing their IBD with a vegan diet, and considering those experiences in light of the epidemiological evidence I mentioned above, I think it would behoove us to pay attention to what this information could teach us about the disease processes involved in IBD, and how to best address them.

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Semi-Vegetarian/Plant-Based Diet for Ulcerative Colitis and Crohn’s Disease

Alyssa Luck · Mar 14, 2022 · Leave a Comment

Summary: Hospitals in Japan routinely implement a specific diet in the treatment of IBD patients that they call a “semi-vegetarian diet” (SVD), or, in later publications, a “plant-based diet” (PBD), which consists mostly of brown rice, miso soup, vegetables, fruits, potatoes, legumes, eggs, plain yogurt, pickled vegetables, and green tea, with fish once per week and meat every two weeks. This group of doctors and researchers has achieved impressive results in both Crohn’s disease and ulcerative colitis using the diet alone or in combination with medical intervention. Of note is the markedly different mindset surrounding treatment of IBD in Japan compared with the US and other Western countries.

This article is part of the IBD Index. Last updated April 22, 2022.

“Semi-vegetarian diet? What a dumb and nonspecific name, Alyssa. Are you going to write an article about a “semi-carnivore” diet too? Ever heard the word omnivore?”

Yeah, I know. But believe it or not, the “semi-vegetarian diet” is a diet with fairly specific parameters that is used to treat IBD in Japan.

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Nutrition for IBD

Alyssa Luck · Mar 14, 2022 · Leave a Comment

This post is part of the IBD Index. I plan to flesh out the topic of nutrition for IBD (arguably the only topic I’m technically qualified to speak on, on the basis of formal education) in far greater detail as soon as I’m able, but for now, this page will serve as a placeholder and a gentle reminder that ensuring adequate nutrition is of the utmost importance when dealing with chronic illness.

This isn’t “diets for IBD.” IBD diets are, more often than not, more about what you don’t eat than what you do. This page is about nutrition: making sure your body has all the nutrients – both macro and micro – that it needs in order to function, grow, and repair. This is, after all, the entire reason we eat food to begin with, but that fact is often forgotten amidst frantic attempts to quell symptoms by eliminating foods.

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The Specific Carbohydrate Diet (SCD) for IBD: Everything You Need to Know

Alyssa Luck · Mar 14, 2022 · Leave a Comment

Summary: The Specific Carbohydrate Diet is an increasingly popular dietary intervention for IBD patients that involves limiting dietary carbohydrate to monosaccharides, or simple sugars. In practical terms, this involves eliminating all sources of starch, as well as sugar (sucrose) and lactose. It has anecdotally been extremely helpful for a variety of digestive issues, and some published clinical research is beginning to accumulate suggesting benefit for IBD patients, although the best-designed trial thus far does not demonstrate any benefit over a “Mediterranean” diet. Further, the scientific theory underlying the SCD principles does not stand up to our current understanding of the role of intestinal bacteria in IBD, and more importantly, does not support the “fanatical adherence” called for. Ultimately, the diet has helped a great number of IBD sufferers and may be right for some people, but there are likely other dietary and lifestyle approaches that could deliver similar or greater benefit with less restrictiveness and easier-to-follow guidelines.

This article is part of the IBD Index. Last updated on March 14, 2022.

This article aims to give a high-level overview of the Specific Carbohydrate Diet, as well as practical guidance. For a deep (deep, deep) dive into the science, check out The Science Behind the Specific Carbohydrate Diet (SCD): Brilliant or Bunk?.

Ah, the Specific Carbohydrate Diet. I’ll save my experience with it for another time and keep this page as objective as possible, but as a disclaimer: this is the diet I stuck to religiously for the vast majority of the ~3 years between being diagnosed with UC in 2008 and having my colon removed in 2011. (So at the very least, I’m writing from a place of experience!)

From the looks of it, the diet has only grown in popularity since that time. Even giant online health websites like WebMD, VeryWellFit, and Healthline are chiming in about it. (You don’t need to go read those pages. Just keep reading this one; it’s better.)

This post will give you an overview of the SCD, where it came from, the rationale behind it, pros/cons, and things to watch out for. I also link some relevant resources, and at the bottom of the post (as usual) you’ll find a literature review of sorts. An annotated bibliography, if you will.

[Read more…] about The Specific Carbohydrate Diet (SCD) for IBD: Everything You Need to Know

The Science Behind the Specific Carbohydrate Diet (SCD): Brilliant or Bunk?

Alyssa Luck · Mar 14, 2022 · Leave a Comment

Summary: In her 1987 book Breaking the Vicious Cycle, Elaine Gotschall proposed the hypothesis that digestive diseases – including IBD – are perpetuated by a vicious cycle of carbohydrate malabsorption, bacterial overgrowth, and intestinal injury, and can therefore be resolved by removing specific carbohydrates from the diet to break the cycle. Much of her research was quite prescient, but key claims fail to stand up to scrutiny, and the science does not support adherence to SCD principles. A modern look at Gottschall’s hypotheses reveal that modulating the intestinal bacteria through diet is indeed as important as she suspected, but that strategies other than the SCD are better able to accomplish that goal.

This article is part of the IBD Index. Last updated April 20, 2022.

This article is a deep dive into the science behind the Specific Carbohydrate Diet, and is a companion post to the high-level summary post: The Specific Carbohydrate Diet (SCD) for IBD: Everything You Need to Know.

The Specific Carbohydrate Diet as laid out in the 1987 book Breaking the Vicious Cycle (BTVC) by Elaine Gotschall is respectably science-driven. She lists dozens of references in the back of the book to support her recommendations (which is impressive considering she was conducting this research in the pre-internet era), and the book itself has been cited in the literature over 100 times. The SCD is also increasingly showing up as an intervention in clinical research, first in case studies and more recently in a large randomized controlled trial.

I said this in my main post on the SCD, but in many ways, Gottschall was truly ahead of her time with the theories she lays out in her book, although of course she leaned heavily on the work of Dr. Haas. In researching this post, I was struck by how relevant her work still is, and how many modern lines of inquiry flow naturally from her hypotheses.

That said, the big wheel of science keeps on turning, and there’s much to be critiqued in BTVC, with quite a few issues that are – in my view, at least – highly relevant to patients. When you have a dietary protocol with rules that are as specific as those of the SCD – and when the diet originator claims they must be followed with “fanatical adherence” – you gotta make sure they stand up to scrutiny, right?

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Hi! I’m Alyssa. I like thunderstorms and cats, hate wearing shoes, and enjoy devising extensive research projects for myself in my free time. This is me in Bali with a monkey on my shoulder. And this is my blog, where I muse about health-related topics and document my relentless self-guinea pigging. If you want to know more about me, click here!

alyssa.luck

alyssa.luck
Photo dump from the last year. Thanks to everyone Photo dump from the last year. Thanks to everyone who made 28 the best yet - excited for 29🥰

(PS. In case anyone wants to know what it’s like in my head, I was going to write something like “year 28” or “my 28th year” but then I realized that the year between your 28th and 29th birthdays is not your 28th year of life, it’s your 29th year. I am turning 29 because I have been alive for 29 years. So then I had a whole thing about how to word it without being inaccurate and ended up going with what you see above which is vague and weird but the point is it was a good year and I love all the people in my life dearly)
Biology of Belief (2005) was written by Bruce Lipt Biology of Belief (2005) was written by Bruce Lipton, who earned a PhD in developmental biology in 1971 and was an anatomy professor and academic researcher in the 70s and 80s. Despite the book's presentation and Lipton's background, this is not a science book. It is an exposition of an ideology, supported by haphazard and poorly contextualized nuggets of evidence, rhetorical leaps, and a mind-boggling overuse of analogies. 

The book largely failed to deliver on its promised content. What it does is argue for the primacy of the environment over DNA in controlling life; propose that the cell membrane rather than the nucleus is the "brain" of the cell; invoke quantum physics to explain why modern medicine fails; explain that our behavior is largely controlled by our subconscious mind; inform parents that they therefore have a great deal of control over the destiny of their children; and conclude that humans must become nonviolent protectors of the environment and of humanity because Everything Is Connected.

It’s not that these points aren’t relevant to the topic at hand - they are. But they were not connected in a coherent way that would explain how “belief” actually works (like…biologically), and the treatment of scientific concepts throughout was careless, or perhaps disingenuous.

I think he's correct about many things, some of them being common knowledge. For instance, the "new" science of epigenetics is now old news, as is the critical role of parenting and early environment in shaping a child’s future. But however important these and attendant concepts may be, the book did not do a good job explaining, supporting, or connecting them. 

As far as practical guidance, he refers the reader to a list of resources on his website, which is fine, but I expected some scientific insight into how/why those modalities work. None was given. 

On the plus side, the book was quite thought-provoking, and I came away with loads of references and topics to follow up on. My favorite line? "There cannot be exceptions to a theory; exceptions simply mean that a theory is not fully correct."
Friedrich Nietzsche, The Gay Science (section 382) Friedrich Nietzsche, The Gay Science (section 382), as quoted in the introduction to Thus Spoke Zarathustra because I like the translation better.
This paper totally changed the way I think about e This paper totally changed the way I think about early nervous system development and the relationship between physiology and sociality. 

The authors propose that newborn babies are not inherently social, and have just one goal in life: physiological homeostasis. I.e. staying alive. This means nutrients, warmth, and regulation of breath and heart rate, i.e. autonomic arousal (it’s well-accepted that newborns sync their breathing and heart rate with caregivers through skin to skin contact). 

All these things are traditionally provided by a loving caregiver. So what the baby experiences during the first weeks of life, over and over, is a shift from physiological perturbation to homeostasis (a highly rewarding event inherently) REPEATEDLY PAIRED with things like the sound of a caregiver’s voice and seeing their face. Thus, over time, the face/voice stimuli become rewarding as well. 

The authors argue that THIS is the beginning of humans’ wiring for sociality, and may explain why loving social interactions can have such a profound regulating effect on physiology throughout life: because the brain was trained for it at an early age. 

This framework holds all kinds of fascinating implications for what happens if that initial “training” isn’t so ideal. What if the return to nutritional homeostasis via feeding is paired with negative expressions and vocalizations rather than loving ones, perhaps as could occur with PPD? What happens if the caregiver has poor autonomic regulation, such that social stimuli become paired with cardiorespiratory overexcitement in the baby? Could that have potential for influencing later introversion vs extroversion? (Because if social interaction is paired with autonomic overexcitement, that could lead to social interaction literally being more energetically draining, which is what introverts experience. Thoughts?)

For my energy metabolism enthusiasts: Table 1 in the paper draws a link between metabolic rate and sociality across species. Swipe for a screenshot. 

Anyway, check out the paper! It’s free, just google “growing a social brain pdf.”
I’ll be under general anesthesia in a couple day I’ll be under general anesthesia in a couple days to have two tooth implants placed, and I think I’ll take the opportunity to have a little heart-to-heart with my subconscious mind. A bit of medically-assisted self-hypnosis, if you will. 

I randomly stumbled upon these papers a couple months ago - an RCT showing reduced post-op pain in patients who listened to recorded positive messages while under general anesthesia, plus a post-hoc analysis of the same data that found reduced post-op nausea and vomiting in a subset of high-risk patients. 

The full review paper from the first slide is unfortunately in German, but it has long been recognized that even when unconscious, the patient is listening (for better or for worse). 

It boggles my mind that it isn’t standard of care to have patients listen to recordings like this while under sedation, considering that almost nothing could be easier, safer, or cheaper, and we have at least some evidence of significant efficacy. I mean c’mon, what more could you want from an intervention? 

(Yeah, I know. Profit. If anyone still thinks that our medical system operates with patient well-being as the foremost goal, you’re deluding yourself.)

“There should be a fundamental change in the way patients are treated in the operating room and intensive care unit, and background noise and careless conversations should be eliminated.”

“Perhaps it is now time to finally heed this call and to use communication with unconscious patients that goes beyond the most necessary announcement of interventions and is therapeutically effective through positive suggestions. When in doubt, assume that the patient is listening.”
If you've seen "vagus nerve exercises" that have y If you've seen "vagus nerve exercises" that have you moving your eyes or tilting your head, you've probably encountered the work of Stanley Rosenberg. The exercises he created and introduced in his 2017 book now appear in instructional videos all over the internet. 
 
The book itself has much to recommend it: it's accessible, it's practical, it's inspiring. But it has one major flaw: the solid practical and informational content regarding the cranial nerves is framed in terms of the scientifically dubious polyvagal theory. 
 
I particularly enjoyed the book as an introduction to the therapeutic arena of bodywork, of which Rosenberg is a skilled practitioner. His book is full of case reports that demonstrate how immensely powerful extremely subtle movements and physical manipulations can be. These do need to be kept in perspective: it's a small sample size of the most remarkable cases, and the results were achieved within the supportive clinical environment of a skilled practitioner. You can tell from his descriptions how refined his technique is. But nevertheless, it was a paradigm-shifting read for me, and the exercises give you something concrete to play around with. 
 
The book also brought the cranial nerves and the concept of “social engagement” to the fore as arbiters of health. Rosenberg has a solid background in cranial nerve anatomy and shares many interesting tidbits and considerations that you don’t typically hear; for instance, the potential impact of dental and orthodontic work on cranial nerve function.
 
So, is it worth reading? If any of the above piques your interest, go for it! Just read my post on polyvagal theory first – you can use the book to practice separating the wheat (solid informational content) from the chaff (pseudoscientific framing). If nothing else, the book is a nice reminder that genuine healers who get lasting results for their patients do exist.

But if you just want to try the exercises, you can easily find them all on YouTube. 

“You learn techniques to understand principles. When you understand the principles, you will create your own techniques.” -Stanley Rosenberg
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  • Lymphatic Support for Ulcerative Colitis and Crohn’s Disease
  • Heart Rate Variability 101: What It Is, How It’s Measured, and Controversies in the Literature
  • Autonomic Nervous System 101: Anatomy and Physiology
  • Vitamin A Detox Diet for Ulcerative Colitis and Crohn’s Disease

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