When your body is losing weight, it’s not only shaking off fat deposits: Sometimes, weight loss also means that you’re losing bone and muscle mass. In most cases, the sudden weight loss associated with cancer also means the body is rapidly losing nutrients in the process. It’s not just weight you’re losing, it’s nutrients. The body will eventually begin to pull nutrients from its reserves in an attempt to make up the difference, and this means that you might start to suffer from other deficiency-related symptoms such as feeling faint, experiencing cravings for strange things and anemia.
In short, anemia means that your body is losing vast amounts of iron. You have likely guessed yourself that the easiest way to take care of an iron deficiency is to up your intake of iron – either through your diet with iron-rich foods like beef liver and red kidney beans, or with supplements.