Hypertension, anemia, stroke, and various types of cancer share causes such as chronic inflammation, oxidative stress, and dysfunctional metabolism, often fueled by diets high in carbohydrates and processed foods. The Optimal Human Diet (OHD), by reducing glycemic load and providing ancestral nutrients, contributes to improving vascular health, iron balance, and the cellular metabolic environment. In cancer cases, a low-glucose dietary approach can act as a complement to conventional medical treatment, hindering the progression of sugar-dependent tumor cells. By integrating physical activity, deep rest, and emotional connection, this approach transforms the biological landscape, helping not only prevent but also confront serious conditions with greater strength.