Vitamin A Benefits, Side Effects, & Best Sources
Vitamin A is crucial to life and health, and most of us can synthesize all we need from orange and yellow fruits and vegetables and leafy greens. Despite that, it’s often portrayed as a nutrient best sourced from animals or via a supplement. What does vitamin A do in the body? What are the best sources for it, how much do we really need, and what happens when we get too much or not enough?