Table of Contents
- Why I Considered the Ketogenic Diet
- Implementing the Ketogenic Diet
- My Daily Ketogenic Routine
- Benefits of the Ketogenic Diet During Cancer Treatment
- Potential Reduction in Tumor Growth
- Improved Energy Levels and Mental Clarity
- Enhanced Well-Being and Weight Management
- Overcoming Challenges with the Ketogenic Diet
- How Did I Overcome These Challenges?
- Using Technology to Support the Ketogenic Diet
- Key Takeaways from My Ketogenic Diet Experience
- Reducing Carbohydrate Intake Had a Significant Impact
- Consistency and Discipline Were Essential
- Pairing the Ketogenic Diet with Other Healthy Lifestyle Practices Was Key
- Advice for Others Considering the Ketogenic Diet During Cancer Treatment
- Consult with Healthcare Professionals First
- Gradually Reduce Carbohydrate Intake and Increase Healthy Fats
- Monitor Progress and Adjust as Needed
- The Role of the Ketogenic Diet in Cancer Treatment
- References
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The ketogenic diet has gained attention in cancer research for its potential role in slowing tumor growth by reducing glucose availability to cancer cells. Many cancer patients, including those with colorectal tumors and advanced cancer, struggle with weight loss, malignant tumors, and the side effects of cancer treatment.
After being diagnosed with stage IV colorectal cancer with liver metastases, I followed standard cancer therapy, including chemotherapy and surgery. Despite these cancer treatments, my colorectal tumor growth continued, leading me to explore how a low carbohydrate diet could impact cancer risk, tumor size, and overall body weight.
Why I Considered the Ketogenic Diet
After multiple rounds of cancer treatment, including chemotherapy and surgeries, my colorectal tumor growth continued. Standard cancer therapy wasn’t enough, and I wanted to understand how diet in cancer could impact my condition. While researching, I found that cancer cells rely on glucose for cell growth, and reducing carbohydrate intake might help slow down tumor size.
I explored cancer research, read books, and watched interviews with scientists discussing how a low carbohydrate diet could affect malignant tumors. Testimonials from other cancer patients who followed ketogenic diets also stood out. Their experiences, along with clinical trials and animal studies, suggested that keto diets might support cancer treatment by limiting glucose, forcing cancer cells to adapt while keeping healthy cells nourished.
Implementing the Ketogenic Diet
Cutting carbohydrates was the first step. I eliminated whole grains, processed foods, and sugar while focusing on a low carb, high fat diet. This shift aimed to reduce the glucose supply that fuels tumor growth. Unlike a low fat diet, which can cause weight loss in cancer patients, the keto diet could help preserve fat mass while stabilizing body weight.
I increased my intake of healthy fats like olive oil, MCT oil, and grass-fed butter, combined with moderate protein from fish and eggs. Instead of fueling my body with carbohydrates, I relied on ketone bodies for energy. The transition wasn’t immediate, but my body adapted to using fat as its primary fuel over time.

My Daily Ketogenic Routine
I structured my ketogenic diet around fasting periods and nutrient-dense meals to support cancer therapy. Each day included targeted supplementation, low carb meals, and high fat intake to maintain body weight while stopping cancer cells from thriving on glucose.
Time | Routine |
10:00 AM | Morning supplements, prepare 1000cc of green tea |
10:30 AM | Half cup of kefir for gut health |
10:50 AM | Black coffee with 10cc MCT C8 oil and organic grass-fed butter |
12:00 PM | 30cc olive oil with supplements, meal with sauerkraut and other low-carb, high-fat foods |
4:00 PM | Exercise (Zone 2 cardio or resistance training) |
7:00 PM | 30cc olive oil with supplements and dinner |
11:00 PM | Evening supplements |

Benefits of the Ketogenic Diet During Cancer Treatment
Switching to a ketogenic diet was not easy, but it made a noticeable difference during cancer treatment. The shift to a low carbohydrate diet helped manage my body weight, improved my energy, and possibly impacted tumor growth. Unlike a low fat diet, which often leads to weight loss, the keto diet could help maintain fat mass while keeping me strong enough for cancer therapy.
Potential Reduction in Tumor Growth
Eliminating carbohydrates forced my body to rely on ketone bodies instead of glucose for energy. Cancer cells depend on glucose for cell growth, and reducing sugar intake may have created an environment that was less supportive of tumor size and colorectal tumor growth. Some cancer research and mouse studies suggest that a keto diet could slow down the progression of malignant tumors by starving cancer cells while preserving healthy cells.
Improved Energy Levels and Mental Clarity
Before switching to ketogenic diets, I experienced extreme fatigue and chemo brain during cancer therapy. After adjusting to low carb, high fat diets, my energy levels stabilized, and my mental clarity improved. Many cancer patients struggle with brain fog during treatment, but I noticed that ketone bodies provided more stable energy than glucose.
Enhanced Well-Being and Weight Management
Maintaining body weight was crucial for continuing cancer treatments. Many cancer patients experience weight loss due to chemotherapy, but a high fat, low carbohydrate diet helped me stop losing weight. Unlike a low fat diet, which can lead to muscle loss, my keto diet allowed me to maintain fat mass while keeping my body weight stable.
Overcoming Challenges with the Ketogenic Diet
Adjusting to a low carb diet was difficult at first. Cravings for carbohydrates were strong, especially after years of eating whole grains, bread, and starchy foods. It took time for my body to adapt, but once I became fat-adapted, those cravings faded.
Ensuring proper nutrition was another challenge. Cutting carbohydrates meant I had to be intentional about getting enough healthy fats, protein, and micronutrients. Since many cancer patients struggle with nutrient deficiencies, I had to balance my intake carefully to support my long-term health.
How Did I Overcome These Challenges?
Finding low-carb alternatives helped me stay on track. Instead of processed snacks, I ate fermented foods like sauerkraut, high-fat dairy like kefir, and omega-3-rich fish. These foods kept me satisfied and provided health benefits that supported my cancer treatment.
Including a variety of nutrient-dense, low-carb foods was essential for balanced nutrition. I focused on healthy fats from olive oil and grass-fed butter, high-quality proteins from fish and eggs, and antioxidant-rich vegetables. These choices ensured I got the necessary nutrients while keeping my body in ketosis.
Using Technology to Support the Ketogenic Diet
Tracking progress was essential to ensuring my ketogenic diet supported my cancer treatment. I used a ketone meter to measure my ketone levels, making sure my body stayed in ketosis. Since cancer cells rely on glucose, maintaining a low-carbohydrate diet was crucial to shifting my metabolism toward ketone bodies instead of sugar.
I also used the Oura Ring and Apollo Wearable to monitor my health. These devices tracked my sleep quality, heart rate variability, and stress levels, helping me adjust my routine when needed. For cancer patients, managing stress and getting enough rest is just as important as dieting when fighting malignant tumors and maintaining long-term health.

Key Takeaways from My Ketogenic Diet Experience
Following a keto diet while undergoing cancer therapy was challenging but provided valuable insights. The combination of ketogenic diets, fasting, and exercise gave me more control over my health and possibly impacted my colorectal tumor growth.
Reducing Carbohydrate Intake Had a Significant Impact
Cutting carbohydrates and switching to high fat, low carbohydrate diets helped stabilize my energy and possibly influenced tumor growth. Cancer research and some clinical trials suggest that cancer feeds on glucose, and shifting to ketone bodies may create an environment less favorable for cancer cells.
Consistency and Discipline Were Essential
Sticking to a strict low carb diet took commitment. Adjusting my meals, resisting cravings, and maintaining ketosis required effort. Many cancer patients struggle with weight loss and fat mass depletion, but staying consistent helped me keep my body weight stable throughout cancer treatments.
Pairing the Ketogenic Diet with Other Healthy Lifestyle Practices Was Key
Following a low carbohydrate diet alone wasn’t enough. I combined ketogenic diets with intermittent fasting, regular exercise, and stress management. These habits supported my overall cancer therapy, allowing me to manage side effects while staying as strong as possible.
Advice for Others Considering the Ketogenic Diet During Cancer Treatment
Starting a ketogenic diet while undergoing cancer treatment requires careful planning. Many cancer patients experience difficulties maintaining body weight and energy, so it’s important to approach this dietary change strategically.
Consult with Healthcare Professionals First
A keto diet could be beneficial, but it’s not suitable for everyone. Consulting with a doctor or nutritionist before starting can help ensure that the diet supports ongoing cancer therapy and does not interfere with other cancer treatments.
Gradually Reduce Carbohydrate Intake and Increase Healthy Fats
Cutting carbs forces the body into ketosis, but doing it too quickly can cause discomfort. Slowly replacing carbohydrates with healthy fats like olive oil, grass-fed butter, and omega-3-rich fish helped me adapt without extreme side effects.
Monitor Progress and Adjust as Needed
Tracking ketone levels, body weight, and overall health ensured I was on the right path. Using tools like a ketone meter, Oura Ring, and Apollo Wearable allowed me to make necessary adjustments to maintain ketosis and support my long-term health.
The Role of the Ketogenic Diet in Cancer Treatment
Following a ketogenic diet during cancer treatment required discipline, but the benefits were undeniable. Reducing carbohydrates and relying on ketone bodies may have impacted my tumor growth, stabilized my body weight, and improved my energy.
While more research and clinical trials are needed, my experience shows that low carbohydrate diets can support cancer therapy alongside other cancer treatments. For cancer patients considering this approach, consulting with healthcare professionals, gradually adjusting diet, and tracking progress can help create a sustainable plan for better long-term health and overall survival.
References
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