Table of Contents
- Why I Considered Fasting
- Implementing Fasting in My Routine
- How Did I Start Fasting?
- My Fasting Schedule
- Benefits of Fasting During Cancer Treatment
- What Challenges Did I Face?
- Using Technology to Support Fasting
- Key Takeaways from My Fasting Experience
- Fasting’s Impact on Health and Cancer Treatment
- Listening to My Body
- Combining Fasting with a Healthy Lifestyle
- Advice for Others Considering Fasting During Cancer Treatment
- Consult Healthcare Professionals
- Start Small and Build Gradually
- Stay Hydrated and Monitor Your Body
- Fasting and Cancer – A Valuable Complement to Treatment
- References
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This article explores the connection between fasting and cancer, focusing on its potential benefits for cancer patients undergoing treatment. Fasting, including intermittent fasting and prolonged fasting, has gained attention for its ability to support normal cells, enhance insulin sensitivity, and reduce chronic inflammation, which is crucial during cancer care.
As someone diagnosed with stage IV colorectal cancer with liver metastases, I faced numerous challenges with cancer treatments, including chemotherapy and surgeries. Incorporating fasting into my treatment plan helped improve my metabolic health, manage body weight, and potentially slow tumor growth while supporting the healing process.
Why I Considered Fasting
During my battle with stage IV colorectal cancer, I researched ways to complement traditional cancer treatments. I discovered that fasting could impact cancer cells by reducing glucose levels and insulin-like growth factor, both of which contribute to tumor growth. Scientific studies and clinical trials suggested fasting might protect normal cells during chemotherapy while increasing treatment efficacy.
Books, medical research, and testimonials from other cancer survivors reinforced my interest in fasting. These sources highlighted the benefits of intermittent fasting and prolonged fasting in improving insulin sensitivity, reducing chronic inflammation, and limiting free fatty acids that fuel cancer development. I felt this approach could enhance my cancer care and give me more control over my outcomes.
Implementing Fasting in My Routine
I experimented with intermittent fasting by restricting my food intake to an 8-hour window daily and fasting for the remaining hours. This dietary regimen was simple to incorporate and helped stabilize my glucose levels and body mass index. It also allowed me to align my eating habits with my treatment cycles without feeling overly deprived.
Extended fasting, with periods lasting two to ten days, became a key part of my approach. Prolonged fasting helped reduce chronic inflammation and supported normal tissue during treatment. I found this especially useful before chemotherapy sessions, as it seemed to protect normal cells and enhance differential stress resistance while minimizing the side effects of cancer treatments.
How Did I Start Fasting?
I began fasting slowly, starting with shorter intermittent fasting periods and gradually increasing the duration. The goal was to let my body adapt while monitoring my glucose levels and metabolic health. Initially, I fasted for 12 hours a day, then moved to 16 and eventually 24 hours as I felt more confident.
Using tools like a ketone meter and tracking my body weight, I observed how fasting impacted my energy levels and overall health. These adjustments allowed me to safely incorporate fasting into my routine, ensuring I maintained strength for my cancer treatment while promoting the healing process.
My Fasting Schedule
Fasting became a structured part of my cancer care routine, with specific schedules for normal and fasting days. On normal days, I focused on balanced meals, supplements, and light exercise, while on fasting days, I consumed only liquids and adjusted supplements to support my metabolic health.
Schedule | Normal Days | Fasting Days |
10:00 AM | Morning supplements; prepare 1000cc of green tea. | Water, green tea, black coffee, sugar-free electrolytes. |
10:30 AM | Half cup of kefir for gut health. | No food intake. |
10:50 AM | Black coffee with 10cc MCT C8 oil and organic grass-fed butter. | Adjust supplements as needed. |
12:00 PM | 30cc olive oil with supplements and a meal including sauerkraut. | No food intake. |
4:00 PM | Exercise. | Hydration and light activity. |
7:00 PM | 30cc olive oil with supplements and dinner. | No food intake. |
11:00 PM | Evening supplements. | Adjust supplements as needed. |
Benefits of Fasting During Cancer Treatment
Fasting offered many health benefits during my cancer journey, improving both my treatment outcomes and overall well-being.
- Reduction in inflammation and improved immune response: Fasting helped decrease chronic inflammation, as seen in lower CRP levels in my blood tests while enhancing natural killer cells and immunity.
- Enhanced mental clarity and energy levels: Intermittent fasting eliminated the brain fog I experienced during chemotherapy, sharpening my focus and boosting my energy.
- Potential reduction in tumor growth: Fasting appeared to lower glucose levels and insulin-like growth factors, slowing tumor development and supporting normal tissue during treatment.
- Improved treatment outcomes: Combining fasting with cancer treatments may have amplified their efficacy and reduced chemotherapy delays.
What Challenges Did I Face?
Managing hunger and cravings was one of the toughest parts of fasting. In the early stages, it was difficult to resist eating food during fasting periods, especially when my body was still adjusting. I found that staying occupied and drinking green tea or black coffee helped curb these urges.
Ensuring adequate hydration and nutrient intake was also a challenge, particularly during prolonged fasting. I relied on sugar-free electrolytes and supplements to maintain my energy and prevent dehydration. Tracking my body's response helped me refine my fasting regimen and avoid potential risks like fatigue or nutrient deficiencies.
Using Technology to Support Fasting
Technology became essential to my fasting journey, helping me track my progress, manage stress, and ensure safety. These tools provided valuable insights into my body's response and allowed me to fine-tune my fasting protocols for better results.
- Oura Ring: I used the Oura Ring to monitor my sleep quality, heart rate variability (HRV), and recovery. This data helped me understand how fasting and treatment cycles impacted my overall health and guided me in adjusting my routine when needed.
- Apollo Wearable: The Apollo Wearable helped manage stress and promote relaxation, particularly during prolonged fasting or challenging treatment days. Its calming modes supported better sleep and improved my mental state.
- Monitoring Blood Pressure and Ketone Levels: I regularly tracked my blood pressure and ketone levels to ensure my body was responding well to fasting. These metrics provided a clear picture of my metabolic health and helped prevent issues like dehydration or fatigue.
Key Takeaways from My Fasting Experience
Fasting taught me invaluable lessons about managing cancer and improving my overall health. It wasn’t just about skipping meals; it was about understanding my body and optimizing my approach to cancer care.
Fasting’s Impact on Health and Cancer Treatment
Fasting positively influenced my cancer treatment by reducing inflammation and supporting normal cells while potentially slowing tumor growth. I noticed improved mental clarity, fewer side effects from chemotherapy, and better overall energy levels. These benefits motivated me to continue fasting as part of my routine.
Listening to My Body
Paying attention to my body’s signals was crucial. When I felt overly fatigued or noticed changes in key metrics like blood pressure or HRV, I adjusted the duration or intensity of my fasting. This approach allowed me to maximize the benefits of fasting without jeopardizing my health.
Combining Fasting with a Healthy Lifestyle
Fasting worked best when paired with a low-carb diet, nutrient-dense foods, and regular Zone 2 exercise. These complementary practices helped enhance my metabolic health, reduced body fat and provided the energy needed to navigate cancer treatments.
Advice for Others Considering Fasting During Cancer Treatment
Fasting can be a powerful tool for cancer patients, but it’s important to approach it carefully. Here’s what I recommend to anyone considering fasting as part of their cancer care.
Consult Healthcare Professionals
Before starting a fasting regimen, talk to your oncologist or a qualified healthcare provider. Cancer treatments can have specific nutritional requirements, and a professional can help ensure fasting is safe and suitable for your condition.
Start Small and Build Gradually
Begin with shorter fasting periods, such as intermittent fasting, and gradually extend the duration as your body adapts. This approach helps reduce hunger and cravings while minimizing any risks associated with prolonged fasting.
Stay Hydrated and Monitor Your Body
Hydration is essential during fasting, especially for patients undergoing chemotherapy. Drinking water, green tea, or sugar-free electrolytes helps maintain energy and balance. Tracking your body’s response through tools like ketone meters and HRV monitors ensures safety and effectiveness.
Fasting and Cancer – A Valuable Complement to Treatment
Fasting offers significant benefits for cancer patients by improving metabolic health, reducing inflammation, and potentially enhancing the efficacy of cancer treatments. My journey with intermittent fasting and prolonged fasting, paired with a low-carb diet and consistent exercise, showed promising results in managing cancer recurrence and supporting overall well-being.
While fasting is not a standalone solution to treat cancer, its integration with traditional treatments and a healthy lifestyle can provide additional support for patients facing colorectal cancer, breast cancer, metastatic prostate cancer, and other cancer types. Always consult healthcare professionals before beginning a fasting regimen to ensure it aligns with your specific needs and treatment goals.
References
- Cahill, G. F., Jr, & Veech, R. L. (2003). Ketoacids? Good medicine?. Transactions of the American Clinical and Climatological Association, 114, 149–163. https://pubmed.ncbi.nlm.nih.gov/12813917/
- Furman, D., Campisi, J., Verdin, E. et al. Chronic inflammation in the etiology of disease across the life span. Nat Med 25, 1822–1832 (2019). https://doi.org/10.1038/s41591-019-0675-0
- Imai, K., Matsuyama, S., Miyake, S., Suga, K., & Nakachi, K. (2000). Natural cytotoxic activity of peripheral-blood lymphocytes and cancer incidence: an 11-year follow-up study of a general population. Lancet (London, England), 356(9244), 1795–1799. https://doi.org/10.1016/S0140-6736(00)03231-1
- Mandal, A. K., Saklayen, M. G., Hillman, N. M., & Markert, R. J. (1997). Predictive factors for high mortality in hypernatremic patients. The American journal of emergency medicine, 15(2), 130–132. https://doi.org/10.1016/s0735-6757(97)90082-6
- Murray, A. J., Knight, N. S., Cole, M. A., Cochlin, L. E., Carter, E., Tchabanenko, K., Pichulik, T., Gulston, M. K., Atherton, H. J., Schroeder, M. A., Deacon, R. M., Kashiwaya, Y., King, M. T., Pawlosky, R., Rawlins, J. N., Tyler, D. J., Griffin, J. L., Robertson, J., Veech, R. L., & Clarke, K. (2016). Novel ketone diet enhances physical and cognitive performance. FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 30(12), 4021–4032. https://doi.org/10.1096/fj.201600773R
- Pollak, M. The insulin and insulin-like growth factor receptor family in neoplasia: an update. Nat Rev Cancer 12, 159–169 (2012). https://doi.org/10.1038/nrc3215
- Raffaghello, L., Lee, C., Safdie, F. M., Wei, M., Madia, F., Bianchi, G., & Longo, V. D. (2008). Starvation-dependent differential stress resistance protects normal but not cancer cells against high-dose chemotherapy. Proceedings of the National Academy of Sciences of the United States of America, 105(24), 8215–8220. https://doi.org/10.1073/pnas.0708100105
- Seyfried, T. N., & Shelton, L. M. (2010). Cancer as a metabolic disease. Nutrition & metabolism, 7, 7. https://doi.org/10.1186/1743-7075-7-7
- Shaffer, F., & Ginsberg, J. P. (2017). An Overview of Heart Rate Variability Metrics and Norms. Frontiers in public health, 5, 258. https://doi.org/10.3389/fpubh.2017.00258
- Tiwari, S., Sapkota, N., & Han, Z. (2022). Effect of fasting on cancer: A narrative review of scientific evidence. Cancer science, 113(10), 3291–3302. https://doi.org/10.1111/cas.15492
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