Vitamin A – Health, Disease & Longevity

by | Aug 11, 2025 | Health & Wellness | 0 comments

❓ What is Vitamin A?
🧴 Fat-soluble vitamin vital for:
• 🧬 Growth
• 🛡️ Immunity
• 👁️ Vision

🔗 Sources:

🐟 Retinol – from animal products (e.g., liver, dairy, fish)

🥕 Beta-carotene – from colorful plant foods (carrots, spinach, sweet potatoes)

🌟 Health Benefits of Vitamin A
👁️ Eye Health – Prevents night blindness & supports healthy vision
🛡️ Immune Boost – Enhances the body’s defense against infections
🧖‍♀️ Skin Health – Supports clear skin & tissue repair
👶 Reproductive Health – Essential for fetal development during pregnancy
🧬 Antioxidant Power – Protects cells from damage and slows aging

⚠️ Deficiency & Related Diseases
❌ Night Blindness
❌ Xerophthalmia (dry, damaged cornea)
❌ Weakened Immunity
❌ Dry, flaky skin
❌ Stunted Growth in children

🚨 Overdose Risks (Excessive Supplementation)
🤢 Nausea & Dizziness
🩺 Liver Toxicity
🦴 Bone Weakness (especially in older adults)

💡 Note: Toxicity usually comes from animal-based supplements, not plant-based beta-carotene.

⏳ Vitamin A & Longevity
👀 Maintains lifelong eye function
🛡️ Prevents chronic infections & illness
🧬 Shields your cells from oxidative stress, a major aging factor

📏 Daily Recommended Intake (RDI)
Group Intake
👨 Men 900 µg
👩 Women 700 µg
🧒 Children 300–600 µg