The Medical Advisor

OneDayMD • The Medical Advisor A single starting point for exploring OneDayMD's health, wellness, longevity, nutrition, cancer, metabolic medicine, emerging therapies and digital-health research. Quick Answer OneDayMD is an independent health-information and research-synthesis platform covering conventional medicine, integrative health, longevity, nutrition, supplements, metabolic medicine, cancer research, emerging therapies and digital health. This Master Guide is the site's central navigation page: use it to find the right topic hub, then move from a broad guide to the specific evidence, study, therapy, supplement, condition or research question you are investigating. On this page Start Here · Core Health Hubs · Cancer & Oncology · Nutrition & Supplements · Longevity · GLP-1 & Metabolic Health · DMSO ·...

Introduction Receiving a cancer diagnosis is overwhelming, and many patients and their families naturally seek ways to support treatment and improve well-being through lifestyle choices—especially nutrition. What we eat can influence energy levels, treatment tolerance, immune function, and overall quality of life during cancer care. This guide provides a balanced, evidence-informed overview of nutrition for cancer patients as of December 2025. It begins with the core recommendations from leading organizations like the American Cancer Society (ACS), which are based on the strongest available evidence and focus on sustainable, plant-heavy eating patterns proven to support strength and survivorship. We also explore emerging metabolic approaches—such as low-carbohydrate or ketogenic diets, intermittent fasting, and fasting-mimicking protocols—that have generated interest due to promising laboratory studies and small clinical trials. These strategies aim to target altered cancer cell metabo...