Creatine doesn't just build muscle. It may also help fight cancer
New research suggests creatine, commonly known as a muscle-building supplement, may also boost the immune system's ability to fight cancer. Studies in mice showed creatine helped T-cells become more effective at attacking tumors. The findings could open new avenues for enhancing cancer immunotherapies.
Background
- Creatine is a natural compound best known as a bodybuilding and athletic-performance supplement — it helps muscles produce energy during high-intensity exercise. The new research suggests it also boosts the immune system's ability to fight tumors, specifically by making "killer T cells" more effective against cancer cells.
- This flips the usual scientific narrative: for years, some doctors worried that creatine might actually fuel cancer growth (since tumors are energy-hungry). The new study, from a team at the University of Ottawa, found the opposite — that creatine helps immune cells outcompete tumor cells for energy.
- The finding is still at the preclinical stage (mouse models and lab experiments), so it's not yet something cancer patients should act on without a doctor's guidance — but it opens a new line of research into inexpensive, low-toxicity immune-support strategies.