09/17/2026
Vitamin C has become almost synonymous with immune health.
But its role in the body goes beyond immunity.
Vitamin C contributes to normal immune function, but it is also involved in collagen formation, antioxidant protection, iron absorption, and normal energy metabolism.
It's also a nutrient your body cannot manufacture on its own.
And unlike some nutrients, vitamin C isn't stored in large amounts for long-term use.
That's why getting vitamin C regularly through foods such as citrus fruits, berries, peppers, broccoli, and other fruits and vegetables is important.
Supplementation can be another way to help fill nutritional gaps when appropriate.
But the bigger lesson is this:
One nutrient can have multiple jobs.
And that's why nutrition is so much more interesting than simply asking, “What vitamin is good for immunity?”
Sometimes the better question is:
“What roles does this nutrient play throughout the body?”