There’s a host of reasons why your weight might change while you’re living with cancer. Alterations in your metabolic rate, impaired gastrointestinal absorption, reduced appetite or symptoms that interfere with eating. It's all the more reason to keep eating the right quantities of food with the right nutrients.
Until you start treatment, you won't know what, if any, side effects you may have or how you will feel.
People who maintain their weight during treatment have more chance of a successful outcome from their treatment, plus they’re less likely to experience complications.