Mixed
Obesity induces systemic DNA damage and inhibits DNA repair mechanisms through chronic inflammation and oxidative stress, thereby increasing the risk of metabolic disorders and cancer.
Maintaining a healthy weight is critical for protecting your DNA from damage caused by inflammation and oxidative stress. This damage accumulates over time and increases the risk of serious conditions like cancer and diabetes. However, the damage is not permanent; losing weight and improving diet quality can reverse this process and restore genomic stability.
Obesity, caused mainly by chronic energy overload resulting from consumption of high-energy meals and reduced physical activity, and associated with oxidative stress and inflammation, has been recognized as a key factor inducing DNA damage and inhibiting DNA damage repair mechanisms, favoring accumulation of DNA damage, and leading to enhanced mutation rate and altering gene expression.
Why this rating
The paper is a review summarizing observational and animal studies; while consistent, it lacks direct human intervention trials proving causality in all contexts.
Source
Obesity, DNA Damage, and Development of Obesity-Related Diseases
Marta Włodarczyk et al. · International Journal of Molecular Sciences · 2019
DOI 10.3390/ijms20051146
More from this paper
- Weight loss interventions, including caloric restriction and bariatric surgery, reduce levels of DNA damage and improve genomic stability in obese individuals.Moderate
- Obesity-associated DNA damage in germ cells (sperm and oocytes) can be transmitted to offspring, potentially causing de novo mutations and affecting the health of future generations.Limited
Related findings · Mixed
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