For a healthy 19 year old with no other health issues, taking a
vitamin C supplement for a few months is generally considered safe. It is water soluble, so your body passes out whatever it does not need through urine rather than storing it up.
Next Steps
Stick to a standard over the counter strength rather than a high one, and treat it as a top up alongside
vitamin C rich foods like citrus fruits, amla and guava, not a replacement for them.
Health Tips
Very high doses over a long time can upset your stomach or raise
kidney stone risk in some people, so check with a physician before continuing past a few months.