Kara Fitzgerald ND: Can lifestyle reverse epigenetic age?

Lifestyle interventions significantly influence biological age through the modulation of DNA methylation, a key epigenetic process. A clinical trial led by Dr. Kara Fitzgerald demonstrated that an eight-week protocol—focusing on a nutrient-dense diet rich in methyl donors and polyphenols, alongside consistent sleep, exercise, and meditation—reduced participants' biological age by over three years. Rather than simply increasing total methylation, this approach optimizes the specific distribution of methyl groups to suppress pro-inflammatory and tumor-promoting genes while activating protective pathways. The research emphasizes a food-first strategy, noting that excess methyl donor supplementation can be counterproductive. Furthermore, stress management remains essential, as a significant portion of epigenetic clock sites are glucocorticoid response elements, directly linking psychological stress to accelerated aging. These findings underscore the potential for systemic lifestyle changes to reverse biological age and improve long-term health outcomes.