Study suggests unintended weight loss is warning to see doctor

Unintended weight reduction raises cancer diagnosis likelihood. Recent weight loss linked to increased risk for upper gastrointestinal tract, haematological, colorectal, lung cancers. Weight loss not associated with breast cancer, genitourinary cancer, brain cancer, melanoma. Study assessed participants in Nurses' Health Study, Health Professionals Follow-Up Study. Weight data collected prospectively for decades.

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