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Cancer treatment is a marathon, and for many patients, the biggest challenge is not the tumour itself, but the side effects that make it hard to continue.
Chemotherapy, radiotherapy, targeted therapy, or immunotherapy can bring severe nausea, fatigue, nerve pain, kidney damage, and other issues, often leading to dose reduction, delay, or interruption of the full course.
Glutathione (GSH), the body’s most powerful endogenous antioxidant, is widely used in supportive care, and one of its most clinically valued roles is helping patients “stay the course” with better tolerance.

Helping you understand “what glutathione supplementation can actually do”
Glutathione (GSH) is one of the body’s most important endogenous antioxidants and is widely used in cancer supportive care.
It not only helps reduce treatment-related side effects but also improves fatigue, protects vital organs, and in some cases enhances treatment tolerance.
Below are the most commonly observed benefits from current clinical research and practice.

In the past, cancer treatment was often “one-size-fits-all”:
patients with the same type of lung, breast, or colorectal cancer received largely similar protocols.
But growing evidence shows that every tumour has a unique genetic expression, signalling pathways, and drug response — as individual as a fingerprint.
Personalised treatment plans have emerged to shift care from “generally effective” to “precisely targeted”.

Iron deficiency after chemotherapy is experienced by more than 50 % of patients.
Chemotherapy drugs not only suppress bone-marrow blood production but also cause gut absorption issues, chronic blood loss, or inflammatory consumption, rapidly depleting iron stores.
Iron is not just the “raw material for haemoglobin” — it is essential for oxygen transport, energy production, and immune function.
When iron is low, your body signals the need for replenishment through these symptoms.

Vitamin D is not just the “sunshine vitamin” — it is essential for bone health, calcium absorption, and muscle function.
When vitamin D levels are low, bone pain is often one of the earliest and most noticeable warning signs.
This is not simply “ageing” or “overwork” — it is your body signalling “I lack the raw materials to repair my bones”.

Hypoalbuminemia (serum albumin <3.5 g/dL) is one of the most common nutritional issues during and after cancer treatment. It is not just a “low number” — it can lead to oedema, fatigue, slow wound healing, reduced immunity, and even affect the ability to continue treatment. Understanding the typical stages when it occurs allows you and your physician to prevent and manage it proactively.