Food is not just fuel — it’s medicine.
Our lifestyle choices can profoundly influence our biology, enhancing the body’s ability to defend itself against disease.
Particularly, our diet can play a significant role in both the prevention and treatment of cancer by working with the body’s natural healing processes.
Renowned physician and researcher, Dr Li has dedicated his life’s work to understanding how our bodies can naturally combat diseases through nutrition and lifestyle.
In his books Eat to Beat Disease and Eat to Beat Your Diet, Dr Li delves into the science of how specific foods and actions can activate our body’s defence systems to prevent and fight various illnesses.
In an intriguing experiment where researchers swapped out conventional cancer treatments, such as chemotherapy and targeted cancer drugs, for foods known to activate the body's natural defence systems, the results were remarkable.
Dr Li’s personal journey provides evidence in his mother, who was diagnosed with metastatic endometrial cancer in her 80s.
Given her age and the advanced stage of the disease, the prognosis was poor.
However, after undergoing immunotherapy, which helped her immune system recognise and attack the cancer cells, all signs of cancer disappeared after just three treatments.
She has remained cancer-free since then.
Dr Li has a wonderful ability to explain our bodies defence system to those of us with limited science literacy (me!).
The five key defence systems
Dr Li identifies five critical defence systems in our body that play pivotal roles in maintaining health and preventing disease:
- Angiogenesis: The process by which new blood vessels are formed.
- Regeneration: The body's ability to repair and replace damaged cells.
- Microbiome: The community of microorganisms living in our gut, influencing digestion and immunity.
- DNA protection: Mechanisms that safeguard our genetic material from damage.
- Immunity: The body’s defence against harmful invaders like pathogens and cancer cells.
Findings from recent studies
Cancer tumours need blood vessels to grow and spread.
By consuming foods that promote healthy angiogenesis, such as green tea, berries, and tomatoes, the body could potentially “starve” the tumour of blood, hindering its growth and ability to spread.
Some of the foods included in the study were rich in natural compounds that target cancer cells directly.
For instance, foods like soy, mushrooms, and cruciferous vegetables contain compounds that inhibit cancer cell growth and help regulate the body’s defence systems.
The experiment showed that when these foods were integrated into the diet, the body’s defences, including its immune system and regenerative capabilities, were enhanced.
This led to improvements in the body’s ability to fight off cancer, even without traditional drug treatments.
Essentially, the foods worked synergistically with the body’s existing processes to combat the disease.
Foods also played a significant role in tissue repair and regeneration.
For example, stem cell activity, crucial for regeneration, was boosted by certain foods, which helped the body repair any damage caused by cancer cells.
Food can not only help prevent the onset of cancer, but also assist the body in healing and fighting it once it is present.
This approach works by empowering the body’s natural mechanisms, such as angiogenesis and immunity, instead of relying solely on pharmaceutical interventions.
Foods that activate defence systems
- Angiogenesis: Foods like berries, grapes, and green tea contain compounds that stimulate the growth of new blood vessels, improving oxygen and nutrient delivery throughout the body.
- Regeneration: Nutrient-rich foods such as mushrooms, nuts, and seeds support stem cell activity, aiding in tissue repair and regeneration.
- Microbiome: Fermented foods like yogurt, kimchi, and miso promote a healthy gut microbiome, enhancing digestion and immune function.
- DNA protection: Antioxidant-rich foods like dark chocolate, spinach, and citrus fruits help protect DNA from oxidative stress and damage.
- Immunity: Foods such as garlic, turmeric, and citrus fruits boost immune function, helping the body defend against infections and diseases.
Lifestyle actions to support health
- Regular exercise: Engaging in physical activity enhances blood circulation, supports angiogenesis, and boosts immune function.
- Adequate sleep: Quality sleep is essential for cellular repair and regeneration, supporting overall health.
- Stress management: Chronic stress can weaken immune function; practices like meditation and deep breathing can help manage stress levels.
- Avoiding harmful substances: Limiting exposure to toxins, such as tobacco and excessive alcohol, protects DNA and supports immune health.