The Claim
Approximately 40% of cancers in women and 57% of cancers in men are preventable through modifiable lifestyle factors.
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Many cancers could be avoided by making healthy choices like eating well and exercising. For women, about 4 out of 10 cancers might be prevented this way, and for men, it's about 6 out of 10.
See the scientific wording
Approximately 40% of cancers in women and 57% of cancers in men are preventable through modifiable lifestyle factors.
What the research says
3 studiesStudy: Global and regional cancer burden attributable to modifiable risk factors to inform prevention.
The study looked at things like smoking, drinking, and being overweight, and found they cause about 38% of cancers overall—30% in women and 45% in men, which is pretty close to the claim's numbers, so it supports the idea.
The study says that things like not smoking, eating healthy, and exercising can help prevent cancer, which matches the claim, but it doesn't give exact numbers like 40% or 57%, so it supports the idea generally.
Study: Cancer cases attributable to modifiable lifestyle risk factors in Switzerland between 2015 and 2019
The study looked at lifestyle factors like smoking and diet in Switzerland and found they cause fewer cancers than the claim says, so the claim seems too high.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 3 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.