This article offers a clear, evidence-based guide to supplements that may support energy, immune resilience, and overall health in 2025—designed for patients, caregivers, and anyone seeking trustworthy information. It explains who is most likely to benefit from nutrients such as vitamin D (if deficient), B12 and iron (when indicated), magnesium, omega-3s, probiotics, and, in select cases, creatine for vitality, while noting the modest, time-limited role of vitamin C and zinc for colds. You’ll find practical tips on choosing quality products (USP/NSF), safe dosing, and common drug–nutrient interactions, plus when to avoid or seek testing. The emphasis is food-first and safety-first—helping you personalize choices with your clinician and spend wisely on what works.