Satisfied customer reorders Vitamin A, praises excellent service and product reliability.
Consistent Vitamin A user commends reliable service and product effectiveness, confirming intent to repurchase.
This review is from Amazon.com for product:
NOW Supplements, Vitamin A & D 10,000/400 IU, Eye Health*, Essential Nutrition, 100 Softgels
Excellent service. This was a re-order and I expect I will re-order again.
Vitamin Basics & Tips
Vitamin A plays crucial roles in vision, immune function, and cellular communication. Found in two primary forms - preformed vitamin A (retinoids from animal sources) and provitamin A carotenoids (from plant sources like carrots and sweet potatoes) - it's essential for maintaining healthy skin and mucous membranes. Many adults use supplements to support eye health, particularly night vision, though dietary sources should be the primary intake method.
The recommended daily allowance (RDA) varies by age and gender, with 900 mcg RAE for men and 700 mcg RAE for women. Excessive intake through supplements can lead to hypervitaminosis A, causing dizziness and even liver damage. Pregnant women should consult doctors due to potential birth risks from high retinoid intake. Modern lifestyles with screen usage have increased interest in vision-support supplements containing vitamin A.
When choosing supplements, third-party testing certifications help ensure quality. Some users report better skin texture and fewer breakouts with consistent vitamin A supplementation, though results vary. Always combine supplements with a balanced diet rich in colorful vegetables for optimal absorption and health benefits.
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