i believe bubu meant Vitamin C. The lack of Vita C result in gum problems & Vita C is also one of the best cos it does a lot from the body. Such as repair body tissues etc (Oh it makes ur skin better cos it provide anti-oxidant but Vita E do more for skin) In this case if u wana buy Vita C pills, avoid those that has sodium & get those with time release. Those Vita C that u dissolve in water & drink only last u up to 5hrs. Take pills form with time-release, they can last up to 10hrs in ur body.
Gum bleeding may result from other causes. Are u taking any medications for anything? Sexual oral activities? Etc... so best is consult a dentist/doctor.
Oh i failed to mention Avoid hot drink for time being too
