The X20 Mod is intended to bring the design philosophy of the Vampire tabletop RPG's 20th Anniversary Editions to Bloodlines: to make it feel like it fits into the wider World of Darkness setting by including references both overt and subtle, obvious and deep-dive, referencing material that came out before Bloodlines and after. One of Clan Quest Mod's recommended mods!
The "13 Vitamins" vending machine is now "Ice-Chi," a particular vending machine used by the Five Elemental Dragons for extra Chi. One button dispenses Erg Cola, a Quintessence-infused energy drink. Both references are from Mage: The Ascension.