Why does recovery feel so slow even when eating well?
Many cancer survivors, after completing their main treatment phase, often find themselves asking the same question:
“The treatment is over, so why does my body still feel like it hasn’t returned to normal?”
One key factor frequently overlooked is the balance of the gut microbiome — a hidden but powerful influence on overall recovery.
Helping you understand “why you still feel completely drained even after treatment ends” — and gentle ways to improve
Many cancer patients enter a phase known as “Cancer-Related Fatigue” (CRF) after completing chemotherapy, radiotherapy, or surgery.
Even when the tumour is under control and test results appear normal, patients often feel “no matter how much I sleep, I’m still exhausted”, “always low on energy”, or “even simple household tasks feel overwhelming”.
This is not a matter of “psychological factors” or “not being strong enough” — it is the long-term impact of treatment on the body’s energy systems, nervous system, and immunity, making fatigue the most common and persistent side effect after treatment, affecting quality of life and rehabilitation progress.
Helping you understand “what these changes might mean” — and a gentle reminder not to worry excessively
Pancreatic cancer is one of the relatively high-incidence and poorer-prognosis cancers in Hong Kong, often associated with smoking, long-term alcohol consumption, high-fat diets, diabetes, chronic pancreatitis, or family history.
Early symptoms of pancreatic cancer are extremely subtle and frequently mistaken for stomach pain, indigestion, or “stomach gas”, causing many patients to delay seeking medical care.
However, early detection of pancreatic cancer is crucial for treatment success — prompt identification and examination can significantly increase surgical opportunities and survival rates.
The following outlines common early warning signs of pancreatic cancer, aimed at helping you distinguish “normal” from “abnormal”. Please remember: these symptoms do not necessarily indicate pancreatic cancer — most have benign causes. Do not panic excessively; seek medical confirmation for peace of mind.
Folic Acid (also known as Vitamin B9) is an indispensable nutrient in cancer treatment courses. It plays a core role in red blood cell production, DNA synthesis, and cell repair. During chemotherapy or radiotherapy, folic acid consumption is extremely high, and deficiency directly exacerbates anaemia, fatigue, and oral mucosal damage.
Many patients develop severe folic acid insufficiency due to treatment-induced intestinal absorption impairment, loss of appetite, and vomiting, which reduces treatment tolerance.
Folic acid is not an “anti-cancer vitamin” but serves as supportive care, helping patients maintain stable blood counts, energy supply, and mucosal repair under high-intensity treatment, allowing them to proceed more steadily and smoothly.
Helping you understand “how selenium can help maintain your immunity and antioxidant protection during treatment”
Selenium is an essential trace mineral that plays a critical role in cancer supportive care, as it is a key component of antioxidant enzymes (such as glutathione peroxidase), helping to reduce treatment-induced oxidative stress and inflammation.
Cancer patients often develop selenium deficiency due to treatment consumption and impaired intestinal absorption, leading to weakened immunity, increased fatigue, and greater cellular damage.
Selenium is not an “anti-cancer mineral” but serves as supportive care, helping patients better endure the burden of chemotherapy, radiotherapy, or targeted therapy, maintain tolerance, and improve overall quality of life.
In Hong Kong, cancer remains the leading health threat, with over 30,000 new cases diagnosed annually. The most common types include lung cancer, colorectal cancer, breast cancer, nasopharyngeal carcinoma, and liver cancer, often linked to smoking, dietary habits, EBV infection, hepatitis B carrier status, or family history.
In cancer supportive care, chemotherapy, radiotherapy, and targeted therapies target the tumour but also bring oxidative stress, chronic inflammation, neurotoxicity, and immune suppression, often leaving patients feeling fatigued, in pain, and with reduced tolerance.
Natural compounds (such as curcumin, quercetin, EGCG, resveratrol, alpha-lipoic acid, Reishi polysaccharides, etc.) play an increasingly important role in the adjunctive phase.
They not only help clear free radicals and reduce oxidative damage but also act from multiple angles — anti-inflammation, neuroprotection, immune modulation, and energy support — allowing patients to better endure the burden of treatment, maintain strength, and improve quality of life.
Alpha-Lipoic Acid (ALA) is a powerful antioxidant naturally produced in the body, and it is unique in being both water- and fat-soluble, allowing it to work effectively inside and outside cells. In cancer treatment courses, alpha-lipoic acid is increasingly recognized as a valuable supportive option. It not only directly neutralises free radicals and reactive oxygen species generated during treatment but also regenerates other antioxidants such as vitamin C, vitamin E, and glutathione, forming a robust antioxidant network. This distinctive property enables it to help patients reduce various side effects during chemotherapy, radiotherapy, or targeted therapy, while maintaining better stamina, nerve function, and overall tolerance, allowing the treatment journey to proceed more steadily and smoothly.
Helping you understand “how quercetin can gently support your treatment journey”
Quercetin, a natural flavonoid widely found in onions, apples, green tea, and red wine, has attracted increasing attention in cancer supportive care and adjunctive therapy.
It is not an “anti-cancer drug”, but rather a supportive option that helps reduce treatment side effects, boost immunity, and improve tolerance, allowing patients to better endure the burden during chemotherapy, radiotherapy, or targeted therapy while maintaining a higher quality of life.
Quercetin’s effects primarily stem from its strong antioxidant, anti-inflammatory, and anti-tumour properties, with clinical studies indicating it can offer gentle benefits for cancer patients.
Helping you understand “why you always feel drained during treatment” — and gentle ways to improve
During cancer treatment — chemotherapy, radiotherapy, or targeted therapy — the body consumes large amounts of energy and nutrients, leaving patients frequently feeling “no matter how much I sleep, I’m still exhausted”, “always low on energy”, and “my immunity is weak”.
The B vitamins (including B1, B2, B3, B5, B6, B7, B9, B12) are core co-factors in energy metabolism and the immune system.
They participate in the conversion of carbohydrates, fats, and proteins; mitochondrial energy production; nerve conduction; and red blood cell formation.
Deficiency directly exacerbates fatigue, brain fog, anaemia, and immune suppression, reducing treatment tolerance.