Japan's National Cancer Center released new guidelines on June 3, 2024, to reduce cancer risk through a strategy called "Cancer Prevention Method 5+1" [1, 2].

These guidelines are critical because cancer affects approximately one in two people in Japan [1]. By identifying specific behavioral and environmental risk factors, the research team aims to provide a scientifically backed framework for the Japanese population to lower their likelihood of developing the disease [2].

The new framework identifies six major risk-factor items [2]. These include tobacco use, diet, and weight management, among other factors [2]. The guidelines emphasize that managing these specific areas is essential for effective prevention.

One of the most significant changes in the latest version is the recommendation regarding alcohol. Previous guidance often suggested moderation, but the updated guidelines now advise complete abstention [2]. The research team said that not drinking is the best approach to minimize cancer risk [2].

The National Cancer Center research team in Tokyo developed these guidelines based on scientific evidence [1, 2]. The "5+1" structure is designed to simplify the complex nature of cancer prevention into actionable steps for the general public.

By shifting the alcohol recommendation from moderation to total avoidance, the center acknowledges a more direct link between alcohol consumption and cancer risk than previously highlighted in public guidelines [2]. The team said the goal is to provide the most current scientific evidence to save lives across the country [1].

Cancer affects about one in two Japanese people

The shift from 'moderate drinking' to 'abstention' reflects a growing global scientific consensus that no amount of alcohol is entirely safe regarding cancer risk. By formalizing the '5+1' method, Japan is moving toward a more aggressive, evidence-based public health strategy to combat one of its most prevalent health crises.