Can vitamin supplements help keep you healthy if you choose to use meth?

Hell no!!! Sorry for the French but there is no way to keep healthy if you choose to use meth. Bottom line, stay away from the stuff. For that matter, stay away from any illegal stuff. Heck, stay away from legal stuff like narcotics (hydrocodone, oxycodone, morphine, dilaudid etc), benzodiazepines (alprazolam, diazepam & lorazepam etc) & sedative-hypnotics (zolpidem etc): all are very addictive.