Podcast: Should You Fast with Hashimoto’s?

Podcast: Should You Fast with Hashimoto’s?

New podcast episode! 🎉 Listen and check out the transcript + resources below!

Fasting has been linked to a variety of health benefits such as weight loss, improved metabolic health, and better brain function. However, for people with Hashimoto's, fasting should be approached with caution due to potential risks.

In other words, fasting with Hashimoto’s has pros and cons. Let’s weigh the potential benefits and risks associated with these factors to help determine if fasting is a good idea with Hashimoto’s.

What is Fasting?

Fasting, at the most basic level, is not eating food for a specific period of time. While the duration of a fast can vary from just a few hours to several days, the underlying principle remains the same: fasting gives give the body a chance to rest, repair, and regenerate.

This technique has been practiced throughout human history, often for religious and spiritual reasons. However, in recent years, its health benefits have come into sharper focus, leading to a resurgence in its popularity.

What are the General Benefits of Fasting?

One significant benefit of fasting is autophagy, a cellular process triggered by fasting where the body begins to clean out damaged cells, enhancing cellular function and improving overall health. Fasting can also improve metabolic health, as it can lead to reduced insulin resistance and lower blood sugar levels, which are important factors in managing and preventing diabetes.

Another notable advantage of fasting is its potential for weight loss. Fasting often leads to a reduced caloric intake, and when paired with a healthy diet and lifestyle, can aid in weight management.

In addition to these physical benefits, fasting may also have cognitive benefits. Studies have shown that fasting can lead to improved focus and clarity, and may even boost brain health by promoting the growth of new neurons.

Pros of Fasting with Hashimoto’s:

As we can see, fasting has a number of general benefits. And these benefits can potentially be applied to translate to Hashimoto’s healing, as well:

  1. Anti-Inflammatory Effects: On the positive side, fasting may help reduce inflammation, a characteristic of autoimmune conditions like Hashimoto's. Studies show that fasting can reduce levels of pro-inflammatory cytokines and immune system cells called monocytes. Autoimmune disorders like Hashimoto's are characterized by chronic inflammation, so any strategy that could potentially lower inflammation is worth exploring.
  2. Weight Management: Fasting, particularly intermittent fasting, can be an effective strategy for weight loss, which may be beneficial for individuals with Hashimoto's who struggle with weight gain due to slowed metabolism. Further, losing weight too quickly can lead to muscle wasting, and may strain the immune system, potentially worsening Hashimoto's symptoms. A gradual and steady approach to weight loss is generally safer and more effective in the long term.
  3. Gut Health: Fasting can impact gut health by promoting a healthier gut microbiome composition, which might help with autoimmune conditions like Hashimoto's. However, more research is needed in this area.

These effects of fasting could all have positive effects on Hashimoto’s symptoms. However, these aren’t the only effects that fasting could have on the body, especially when you have an autoimmune disease. Let’s explore those next.

Cons of Fasting with Hashimoto’s:

Although there are potential upsides to fasting with Hashimoto’s, there are also downsides to consider. And it’s a possibility that those downsides could outweigh the good. Here are a few of those downsides:

  1. Hormonal Imbalance: Fasting can impact hormone levels. For individuals with Hashimoto's, who already have a hormone imbalance, fasting could potentially exacerbate symptoms. Additionally, these fluctuations can disrupt the menstrual cycle, affecting fertility and overall hormonal balance. Individuals with Hashimoto's should consider these potential impacts before deciding to fast.
  2. Nutrient Deficiencies: Extended fasting may lead to nutrient deficiencies, which are problematic for those with Hashimoto's, as adequate nutrition is crucial for thyroid function. Further, people with Hashimoto's disease often struggle with nutrient absorption due to associated gut health issues. It's essential to ensure your eating periods provide nutrient-dense foods, covering all necessary vitamins and minerals for optimal health.
  3. Stress: Fasting can be a physical stressor to the body, causing it to produce more cortisol, the stress hormone. Increased cortisol can disrupt the balance of thyroid hormones and worsen Hashimoto's symptoms. It's critical to approach fasting cautiously and monitor stress levels.

As with any dietary strategy, it's crucial to consult with a healthcare provider or a dietitian before starting a fasting regimen. Individual health status, lifestyle, and nutritional needs should all be taken into account when considering fasting.

So Should You Fast with Hashimoto’s?

The answer to this question is not straightforward. While fasting can provide numerous general health benefits, the implications of fasting for people with Hashimoto's Thyroiditis need careful consideration. The key lies in balancing the potential benefits of fasting with the specific demands of managing an autoimmune condition like Hashimoto's.

The decision to fast should be made in consultation with a healthcare provider, taking into account your unique circumstances, nutritional status, and overall health. Remember, what works well for some might not work for others. Hashimoto's is a highly individualized condition, and each person's body responds differently to dietary changes and stressors. Always listen to your body and adjust your practices accordingly.

Concluding Factors

The impact of fasting on Hashimoto's disease is a multifaceted issue with potential benefits and pitfalls. Like any dietary intervention, it is individual and should be undertaken with guidance from a healthcare provider who understands your medical history and current health status. While some may find benefits from fasting, others may find it exacerbates their symptoms.

As always, with Hashimoto's, the aim is to support your body's needs, reduce inflammation, and promote hormonal balance. Fasting may play a role in this, but it's not a one-size-fits-all approach.

Resources

de Cabo, R., & Mattson, M. P. (2019). Effects of intermittent fasting on health, aging, and disease. New England Journal of Medicine, 381(26), 2541-2551. https://doi.org/10.1056/NEJMra1905136

Mattson, M. P., Longo, V. D., & Harvie, M. (2017). Impact of intermittent fasting on health and disease processes. Ageing Research Reviews, 39, 46-58. https://doi.org/10.1016/j.arr.2016.10.005

Li, G., Xie, C., Lu, S., Nichols, R. G., Tian, Y., Li, L., ... & Patterson, A. D. (2017). Intermittent fasting promotes white adipose browning and decreases obesity by shaping the gut microbiota. Cell metabolism, 26(5), 801-815. https://doi.org/10.1016/j.cmet.2017.08.019

Faris, M. A. E., Kacimi, S., Al-Kurd, R. A., Fararjeh, M. A., Bustanji, Y. K., Mohammad, M. K., & Salem, M. L. (2012). Intermittent fasting during Ramadan attenuates proinflammatory cytokines and immune cells in healthy subjects. Nutrition research, 32(12), 947-955. https://doi.org/10.1016/j.nutres.2012.06.021

Antoni, R., Johnston, K. L., Collins, A. L., & Robertson, M. D. (2017). Intermittent v. continuous energy restriction: differential effects on postprandial glucose and lipid metabolism following matched weight loss in overweight/obese participants. The British journal of nutrition, 117(5), 661-670. https://doi.org/10.1017/S0007114517000510

Tomiyama, A. J., Mann, T., Vinas, D., Hunger, J. M., Dejager, J., & Taylor, S. E. (2010). Low calorie dieting increases cortisol. Psychosomatic medicine, 72(4), 357. https://doi.org/10.1097/PSY.0b013e3181d9523c

Sköldberg, F., Svensson, A., Norström, F., Ludvigsson, J. F., Carlsson, A., Danielsson, Å., ... & Nordyke, K. (2013). Levothyroxine treatment in thyroid peroxidase antibody-positive women undergoing assisted reproduction technologies: a prospective study. Human Reproduction, 28(3), 853-861.

Valentino, R., Savastano, S., Tommaselli, A. P., Dorato, M., Scarpitta, M. T., Gigante, M., ... & Lombardi, G. (2004). Prevalence of coeliac disease in patients with thyroid autoimmunity. Hormone research, 61(3), 105-109.

Longo, V. D., & Mattson, M. P. (2014). Fasting: molecular mechanisms and clinical applications. Cell metabolism, 19(2), 181-192.

Tomiyama, A. J., Mann, T., Vinas, D., Hunger, J. M., Dejager, J., & Taylor, S. E. (2010). Low calorie dieting increases cortisol. Psychosomatic medicine, 72(4), 357.

Lamos, E. M., Levitt, D. L., & Munir, K. M. (2019). A Review of the Use of SGLT2 Inhibitors in Polycystic Ovary Syndrome. International journal of molecular sciences, 20(6), 1326.

Müller, M. J., Enderle, J., Pourhassan, M., Braun, W., Eggeling, B., Lagerpusch, M., ... & Bosy-Westphal, A. (2015). Metabolic adaptation to caloric restriction and subsequent refeeding: the Minnesota Starvation Experiment revisited