Sourdough for mood and hyperglycemia

Not all carbs are equal. Several months ago I made a discovery of gluten-free sourdough recipes and now I eat it almost daily. I obtained a sourdough starter, and now that I have one, it can live on forever, as long as it gets fed. It can definitely outlive me! Feeding the starter is very simple and requires only two ingredients – brown rice flour and warm water. After being on a strict AIP diet for almost a year (a lot of food group exclusions, including grains), it was very exciting to once again eat bread, burritos, and blueberry muffins. I no longer follow the strict AIP diet since it did not turn out to be a magical cure for me. I did improve a bit, but that does not mean that every food group exclusion contributed to my improvement. One person (me) trying the AIP diet is not a clinical trial with test and control groups.

I do see strong correlation between my psychotic episodes and consumption of gluten/cow’s dairy/corn/chocolate/nightshades (bell peppers are fine, small amounts of tomatoes are also OK)/ high-glycemic foods. I haven’t found issues with eating gluten-free whole grains and also found no evidence that grains are inflammatory. I don’t consider any blog post evidence. If a blog post refers to a research paper, then I will consider their claim. I do agree that anecdotal evidence is also useful, it was other people’s stories that helped me to obtain the right diagnosis after being misdiagnosed with schizophrenia by my psychiatrist. Only we can’t know from anecdotes what actually helped, if someone did the AIP diet and they got better – was it because they eliminated all the foods the diet suggests to exclude, or they could have improved just as well if they only avoided refined carbohydrates?

The evidence that I found so far indicated that whole grains are actually anti-inflammatory. For example, whole grain intake was found to be inversely related with inflammatory protein concentrations, while refined grain intake was positively related with the inflammatory markers. “In summary, whole grain intake was inversely related to PAI-1 and CRP plasma concentrations, but these relationships were attenuated by the addition of metabolic variables to the model. Refined grain intake was positively independently related to plasma PAI-1 concentrations.

Whole and Refined Grain Intakes Are Related to Inflammatory Protein Concentrations in Human Plasma

I introduced whole grains after a year of strict AIP diet with no problem. I find that consumption of whole grains puts me in a more relaxed state of mind, I actually consume half a cup of rolled oats with green banana flour in the evening for better sleep. Sourdough is great because the baked goods end up with a low glycemic index after the fermentation process. I have a glucometer that I use to determine my blood glucose response to different food products. The standard test is a two-hour glucose test. Two slices of gluten-free bread increased my blood sugar to over 11 mmol/L two hours after consumption, which is a sign of high blood sugar. I did the same test with sourdough bread and sourdough muffins and my blood sugar was back to under 6 mmol/L two hours after consumption, which is a big difference. Short grain brown rice is also a high glycemic index food, while long grain brown rice was found to have lower glycemic index.

Sourdough allows me to eat the foods that I missed out on for so long, at the same time it does not cause a blood glucose spike for me. I have used sourdough to make pizza crust, tortillas, bread, and muffins. Currently I am learning to use fermented batter to cook dosas, an Indian dish. Controlling blood sugar for me means also stabilizing my mood. A glucose spike and then crash turns me lethargic and weepy, it takes away my energy, I definitely want to avoid that. Sourdough allows me to have blueberry muffins for breakfast, goat cheese toast, burritos – all without the consequences of an emotional roller coaster. High glycemic foods may also promote inflammation and given my diagnosis of autoimmune encephalitis, that is something that I definitely want to avoid as well.

Hyperglycemia can cause inflammation through varying mechanisms that result in the production of free radicals and pro-inflammatory cytokines (19, 24). Thus, high glycemic index and glycemic load diets may stimulate inflammation. Glycemic index is the blood glucose-raising potential of the carbohydrates in different foods. A more accurate indicator of the relative glycemic response to dietary carbohydrates, however, is glycemic load. Glycemic load incorporates the relative quality of carbohydrates characterized by the glycemic index. Consumption of high-glycemic index foods results in higher and more rapid increases in blood glucose levels than the consumption of low-glycemic index foods. Rapid increases in blood glucose are potent signals to the β-cells of the pancreas to increase insulin secretion, which can cause a sharp decrease in glucose levels and lead to hypoglycemia (25). In contrast, the consumption of low-glycemic index foods results in lower but more sustained increases in blood glucose and lower insulin demands on pancreatic β-cells (26).

Dietary carbohydrates and inflammation

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Autoimmune Encephalitis and Diet

This post will be mostly based on anecdotal evidence , but I believe this information is still useful and there is not much harm in the suggested diets. In the worst case, the diet won’t help with autoimmune symptoms,  and you’ll just end up eating more vegetables. I don’t think that’s a terrible outcome.

The most popular diet for autoimmune diseases is the Autoimmune Protocol Diet (AIP). Most popular doesn’t mean it has the most evidence to back it up, but for whatever reason, it got around the internet. The AIP diet excludes many foods that are considered to be inflammatory and claims to reduce levels of thyroid antibodies. I cannot claim that his mechanism is true as there are almost no scientific papers on this, only anecdotal evidence. On the other hand, this diet is not unhealthy, so I doubt someone would be worse off by trying it. Usually bloggers/naturopaths recommending the diet suggest to try it for at least thirty days. Food groups that are excluded are gluten, all grains, pseudo-grains, dairy, legumes, beans, nuts, seeds, nightshades, eggs, vegetable oils, processed foods, and sugar. I might be forgetting something because there are so many items that get excluded, but if you are interested, you can read about the diet below.

Autoimmune Protocol Diet

What evidence is there? Well when I googled “AIP diet evidence”, I found one paper. You can try the same Google search. This particular study found that following the AIP diet, 6 weeks elimination phase and 5 weeks maintenance phase, improved endoscopic inflammation in patients with IBD (irritable bowel disease). Only 18 patients were enrolled in the study, so that is a very small sample size. Also such a study does not tell us whether it was necessary for all these food groups to be eliminated, maybe the results would be the same if only gluten and processed foods were eliminated. So it is some evidence that the diet helps but it is only one study and it doesn’t tell us about the mechanism of action of this dietary intervention.

Efficacy of the Autoimmune Protocol Diet for Inflammatory Bowel Disease

Personally I did follow the AIP diet for about a year. When I found out in June 2016 that I had high levels of thyroid antibodies, I finally started to have some hope that maybe I have an autoimmune disease that can be treated instead of treatment resistant schizophrenia and psychotic depression. My mom googled a lot at that time, I didn’t have the energy or motivation to do it, and she convinced me to start trying dietary changes. I started by excluding gluten and dairy and later on went on the AIP diet and stayed on it until December 2017. In June 2016 my Anti-Tg antibodies were over 1000, Anti-TPO was 40 something. Comparing to spring/summer 2016, I did improve by fall 2017, and my Anti-Tg antibodies reduced to about 500. Anti-TPO stayed the same. Was this improvement directly related to the AIP diet and was it necessary for me to eliminate all the food groups? I don’t know the answer to that question. I did go to a gastroenterologist who diagnosed me with chronic gastrointestinal inflammation and advised me to go on a low FODMAP diet. AIP diet overlaps with low FODMAP diet, therefore it could be that it was the elimination of high FODMAP foods that helped me.

The low FODMAP diet is based on the idea that certain foods contain compounds that contribute to gastrointestinal disorders such as IBS. FODMAPS are short chain carbohydrates and sugar alcohols, such as fructose, fructans, galacto-oligosaccharides, lactose, and polyols. Research indicates that some people might not be able to digest these compounds well and this could lead to inflammation in the intestines and gas produced by bacteria as they break down undigested carbohydrates.

Below is a list of high and low FODMAP foods (for those that are FODMAP intolerant it is advised to avoid high FODMAP foods, this can be discussed with a gastrointerologist).

High and Low FODMAP Foods

Could a bad diet cause brain inflammation and psychotic depression? Could a change in diet reduce symptoms if there is inflammation? I don’t think at this point we have a concrete answer, there have been studies though which indicate that a specific diet could improve your mood and physical health. Autoimmune encephalitis is quite rare and I haven’t seen studies on AE patients and diet changes, but I still encourage you to consider whether you are eating healthy and to consider making changes. In general, from what I’ve read, many doctors consider the Mediterranean Diet. This diet includes whole grains, a lot of vegetables,  yogurt , nuts and seeds, and more fish instead of meat (increasing Omega 3 content). There has been a study with positive results, indicating that Mediterranean diet can help patients with depression.

Mediterranean Diet Depression Article

So which diet is best, should you try a specific diet, which one? There is no medical test for this at the moment, only trial and error. As I mentioned, I was on the Autoimmune Protocol Diet for about a year and I did see an improvement in symptoms and reduction in Anti-Tg antibodies . My gastroenterologist also advised me to stick to a low FODMAP diet due to my abdominal issues and I have been following this advice. After I received the IV steroids treatment in December 2017, I relaxed my AIP dietary restrictions and tested several items. I stick to eating gluten-free free and cow dairy free, also I felt that I had skin/abdominal issues become aggravated by potatoes, peanuts, and hot peppers. I avoid processed foods and vegetable oils.

It sounds restrictive but I found this diet to be working for me and I feel that I have enough variety. I eat a lot of goat/sheep/buffalo plain yogurt with nuts and seeds, tea with goat milk, quail eggs, poultry , seafood. In terms of vegetables – zucchini, carrots, squash, plantains, sweet potatoes, kale, spinach, bell peppers, etc. Grains – black rice,  quinoa, buckwheat, oatmeal. For bread I eat sourdough version and sometimes I make cassava flour tortillas. I don’t eat beans and legumes much because they are high FODMAP, sometimes I add canned chickpeas or sprouted mung beans. For cooking I use olive, avocado , and coconut oils.