- You are here:
- Home »
- Blog »
- colon cancer »
- Colorectal Cancer — Need To Know
Colorectal Cancer — Need To Know
Colorectal Cancer — Need To Know- A colorectal cancer diagnosis can feel overwhelming. Colorectal cancer is one of the most common cancers worldwide and remains a leading cause of cancer-related death. The good news is that advances in screening, targeted therapies, immunotherapy, and integrative oncology strategies are improving survival and quality of life for many patients.
If you or someone you love has been diagnosed with colorectal cancer, understanding the disease, treatment options, and supportive therapies can help you make informed decisions and improve outcomes.
This email explains the essentials of colorectal cancer and highlights evidence-based integrative therapies that may improve treatment tolerance, immune function, and survivorship.
Be sure to watch each of the videos about:
I am a long-term survivor of an incurable blood cancer called multiple myeloma. My research and experience with evidence-based non-conventional therapies is the reason why I have lived in complete remission since 1999. I have learned that the best way to manage aggressive cancers is to combine the best of conventional and evidence-based non-conventional therapies.
Good luck,
David Emerson
- Cancer Survivor
- Cancer Coach
- Director PeopleBeatingCancer
What Is Colorectal Cancer?
Colorectal cancer occurs when abnormal cells grow uncontrollably in the colon or rectum. These cancer cells can invade surrounding tissues and spread to distant organs such as the liver or lungs.
Two Main Types of Colorectal Cancer
Colon Cancer
• Begins in the large intestine (colon)
• Represents the majority of colorectal cancer diagnoses
Rectal Cancer
• Develops in the rectum, the final section of the large intestine
• Often requires specialized treatment strategies due to anatomical location
Correct classification is critical because treatment strategies differ significantly.
Colorectal Cancer Statistics Patients Should Know
• Colorectal cancer is one of the most common cancers in the United States
• It remains a leading cause of cancer-related death
• Survival improves dramatically when diagnosed early through screening
Early detection through screening is one of the most powerful ways to improve survival outcomes.
Colorectal Cancer Risk Factors
Primary Risk Factors
• Age over 45
• Personal or family history of colorectal polyps or colorectal cancer
• Inflammatory bowel disease (Crohn’s disease or ulcerative colitis)
Additional Risk Factors
• Diet high in processed or red meats
• Low fiber diet
• Obesity
• Sedentary lifestyle
• Smoking
• Alcohol use
• Type 2 diabetes
• Genetic syndromes such as Lynch syndrome or familial adenomatous polyposis
Colorectal Cancer Symptoms
Early colorectal cancer may produce no symptoms. When symptoms appear, they often include:
• Changes in bowel habits
• Blood in stool or rectal bleeding
• Abdominal pain or cramping
• Unexplained weight loss
• Fatigue or anemia
• Persistent diarrhea or constipation
Because early colorectal cancer is frequently silent, routine screening plays a major role in early detection.
How Colorectal Cancer Is Diagnosed
Diagnosis may include:
• Colonoscopy with biopsy
• CT, MRI, or PET imaging
• Molecular and genomic tumor testing
• Blood tests including CEA tumor marker
Genetic testing is particularly important because targeted therapies now exist for several tumor mutations.
Conventional Colorectal Cancer Treatment Options
Treatment depends on stage, tumor biology, and overall patient health.
• Surgery — Primary treatment for localized disease
• Radiation Therapy — Often used for rectal cancer or advanced disease
• Chemotherapy — Common for stage III and IV disease
• Targeted Therapy — Targets specific genetic mutations such as KRAS, BRAF, or HER2
• Immunotherapy — Used in tumors with mismatch repair deficiency or high microsatellite instability
Screening: A Critical Survival Strategy
Routine screening can detect colorectal cancer early or even prevent cancer by removing precancerous polyps.
Screening methods include:
• Colonoscopy
• Stool-based testing
• CT colonography
Screening beginning at age 45 is recommended for most adults.
Long-Term and Late Effects of Colorectal Cancer Treatment
Survivors may experience:
• Chronic fatigue
• Bowel dysfunction
• Neuropathy from chemotherapy
• Emotional distress
• Sexual or urinary dysfunction
• Secondary cancers
Survivorship planning is essential for long-term quality of life.
Questions Colorectal Cancer Patients Should Ask Their Oncologist
• What type and stage of colorectal cancer do I have?
• What genetic mutations are present?
• What are my treatment goals?
• What side effects should I expect?
• Are clinical trials available?
• Which integrative therapies are safe for me?
• How can I reduce recurrence risk?
Integrative Therapies for Colorectal Cancer Patients
Integrative oncology combines conventional cancer treatments with evidence-based complementary therapies designed to improve treatment response, reduce side effects, and improve long-term survivorship.
Importantly, integrative therapies are not replacements for conventional colorectal cancer treatment. Instead, research suggests they may enhance treatment tolerance, immune function, and overall patient outcomes when used safely under medical supervision.
Your Prehabilitation Plan for Colorectal Cancer Surgery
Prehabilitation programs focus on enhancing physical fitness, nutrition, and emotional readiness prior to surgery to optimize recovery and minimize complications.
Prehabilitation in Cancer
Intravenous Vitamin C and Colorectal Cancer
High-dose intravenous (IV) vitamin C is one of the most researched integrative therapies in oncology.
Unlike oral vitamin C, IV administration produces pharmacologic blood concentrations capable of generating hydrogen peroxide selectively within tumor environments. This mechanism may damage cancer cells while sparing healthy tissue.
Research suggests IV vitamin C may provide several benefits:
Enhanced Chemotherapy Sensitivity
High-dose vitamin C may enhance tumor sensitivity to chemotherapy agents commonly used in colorectal cancer.
Reduced Chemotherapy Toxicity
Clinical studies suggest IV vitamin C may reduce fatigue, nausea, and treatment-related side effects while improving quality of life.
https://www.cancer.gov/about-cancer/treatment/cam/patient/vitamin-c-pdq
Ascorbic Acid Chemosensitizes Colorectal Cancer Cells and Synergistically Inhibits Tumor Growth
https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2018.00911/full
Safety Considerations-
IV vitamin C is generally well tolerated but requires screening for:
• Kidney disease
• G6PD deficiency
• Iron metabolism disorders
Patients should only receive IV vitamin C under physician supervision.
Can High-Dose Vitamin C Fight Cancer? | The Science Behind IV Vitamin C Therapy
Evidence-Based Nutritional Supplements for Colorectal Cancer Support
Certain supplements show potential benefit in improving immune response, reducing inflammation, and supporting treatment tolerance.
Omega-3 Fatty Acids
Research suggests omega-3 supplementation may reduce inflammation, help maintain body weight, and improve treatment tolerance.
Vitamin D
Vitamin D plays a major role in immune regulation and tumor growth control. Deficiency is common in colorectal cancer patients and should be evaluated clinically.
Curcumin
Curcumin demonstrates anti-inflammatory and tumor-modulating properties and may improve chemotherapy sensitivity.
Medicinal Mushrooms
Compounds from mushrooms such as turkey tail, reishi, and maitake may enhance immune response during cancer treatment.
Gut Microbiome Optimization and Colorectal Cancer Treatment Response
The gut microbiome plays a critical role in colorectal cancer development and treatment response.
Dietary strategies that support microbiome health include:
• High-fiber plant foods
• Fermented foods such as yogurt, kefir, sauerkraut, and kimchi
• Polyphenol-rich foods such as berries, green tea, cocoa, and olives
Why the Gut Microbiome Is Crucial for Your Health
Fasting and Metabolic Therapies in Colorectal Cancer
Early research evaluating short-term fasting around chemotherapy suggests potential benefits including:
• Reduced chemotherapy side effects
• Improved treatment tolerance
• Enhanced cancer cell sensitivity to treatment
• Protection of healthy cells from treatment toxicity
Fasting protocols should always be medically supervised.
Anti-Inflammatory Nutrition and Colorectal Cancer
Chronic inflammation contributes to cancer progression and treatment resistance.
Research supports anti-inflammatory dietary patterns emphasizing:
• Vegetables and fruits
• Whole grains
• Legumes
• Healthy fats such as olive oil, nuts, and fish
• Reduced processed food intake
Exercise as a Metabolic and Immune Therapy
Clinical studies show that regular moderate physical activity can:
• Reduce cancer-related fatigue
• Improve immune function
• Improve treatment tolerance
• Improve quality of life
• Reduce recurrence risk
Exercise programs should be individualized based on treatment stage and patient health.
Stress Reduction and Immune Function
Mind-body therapies including meditation, breathing exercises, yoga, and mindfulness training, have demonstrated benefits including:
• Reduced anxiety and depression
• Improved sleep
• Improved quality of life
• Reduced fatigue
Safety Guidelines for Integrative Therapies
Patients should always:
• Discuss supplements with their oncology team
• Avoid high-dose antioxidants during active radiation or chemotherapy without supervision
• Work with integrative oncology professionals when possible
• Use evidence-based therapies rather than unproven alternative treatments
Integrative Oncology Survivorship Strategy
Research increasingly shows that colorectal cancer outcomes improve when treatment includes:
• Precision oncology
• Nutrition optimization
• Physical activity
• Microbiome support
• Stress management
• Metabolic therapies when appropriate
Integrative oncology focuses on treating the entire patient, not just the tumor.
The Bottom Line: Colorectal Cancer Survivorship Requires a Multi-Modal Approach
Modern colorectal cancer care increasingly combines precision oncology with evidence-based integrative therapies. Research shows that exercise, nutrition optimization, microbiome support, and mind-body therapies can improve quality of life and potentially enhance treatment outcomes.
Patients who actively participate in their care and adopt evidence-supported lifestyle therapies often experience improved physical function, emotional well-being, and survivorship outcomes.
David Emerson
Colorectal Cancer — Need To Know Colorectal Cancer — Need To Know Colorectal Cancer — Need To Know