If you are over 60, the vitamins you take every day could either protect your health—or quietly harm it. In this powerful and science-backed episode, Dr. William Li explains the 4 WORST vitamins older adults should NEVER take and the 4 ESSENTIAL vitamins you MUST take daily to support longevity, immunity, brain health, strong bones, and a healthy heart. Many people believe that more vitamins mean better health—but research shows that certain supplements can increase the risk of heart disease, nerve damage, fractures, and organ stress, especially after 60. In this video, Dr. Li breaks down the science in simple language, explains which vitamins are dangerous in high doses, and shows how to use nutrition as medicine the right way. You’ll learn how aging changes nutrient absorption, why food-first nutrition matters, and how to avoid the most common supplement mistakes seniors make. This video is designed to help you age smarter, stay stronger, and protect your body naturally—without falling into the supplement traps that millions unknowingly follow. This content is educational and based on scientific research. Always consult your healthcare provider before making changes to your supplement routine. ⏱️ TIMESTAMPS: 00:00 – Why Vitamins Can Be Dangerous After 60 01:45 – How Aging Changes Vitamin Absorption 03:30 – WORST Vitamin #1: High-Dose Vitamin A 06:10 – WORST Vitamin #2: High-Dose Vitamin E 08:40 – WORST Vitamin #3: Too Much Vitamin B6 11:00 – WORST Vitamin #4: Mega-Dose Vitamin C 13:30 – MUST-TAKE Vitamin #1: Vitamin D3 16:00 – MUST-TAKE Vitamin #2: Vitamin K2 18:00 – MUST-TAKE Vitamin #3: Vitamin B12 20:00 – MUST-TAKE Vitamin #4: Magnesium 22:00 – Safe Supplement Strategy After 60 23:30 – Final Advice for Healthy Aging 🔖 TAGS: dr william li, vitamins after 60, worst vitamins for seniors, best vitamins for elderly, supplements over 60, vitamin mistakes seniors, healthy aging supplements, longevity nutrition, vitamin d3 k2, magnesium for seniors, b12 deficiency elderly, immune system aging, bone health after 60, heart health seniors, brain health aging, anti aging nutrition, food as medicine, senior health tips, vitamins to avoid, supplements for longevity, aging and nutrition, doctor explains vitamins, health after 60, senior wellness, prevent disease naturally, vitamins and aging, over 60 health, natural health tips, doctor william li vitamins, #️⃣ HASHTAGS: #DrWilliamLi, #Over60Health, #HealthyAging, #VitaminsAfter60, #SeniorHealth, #LongevityTips, #AntiAgingNutrition, #FoodAsMedicine, #VitaminD3, #VitaminK2, #MagnesiumBenefits, #VitaminB12, #SupplementsOver60, #AgingWell, #ImmuneHealth, #BoneHealth, #HeartHealth, #BrainHealth, #NaturalHealing, #PreventDisease, #HealthEducation, #DoctorAdvice, #NutritionScience, #SeniorWellness, #HealthyLifestyle, #AgingSmart, #HolisticHealth, #WellnessOver60, #MedicalYouTube, #HealthChannel, 🔍KEYWORDS: vitamins seniors should avoid, best daily vitamins for elderly, vitamin toxicity older adults, supplements after 60 years old, vitamin d deficiency seniors, k2 heart health elderly, magnesium for sleep seniors, b12 absorption aging, senior supplement guide, doctor william li nutrition, immune boosting vitamins elderly, bone loss prevention seniors, aging metabolism vitamins, safe supplements for seniors, vitamin overdose risks, anti aging supplements science, senior diet and nutrition, vitamins for longevity after 60, natural health aging, elderly wellness tips, food based nutrition seniors, supplement mistakes elderly, vitamins and medications interaction, senior immune system support, aging brain nutrition, heart disease prevention seniors, osteoporosis prevention vitamins, senior health education, healthy aging doctor advice, longevity lifestyle seniors,