User blog comment:JoePlay/The Sims 3: Late Night has Vampires. How much does this make your blood rush?/@comment-75.22.192.180-20101107001608/@comment-190.245.78.178-20101107142029

Vamps love feeding in human sims. Other options include stealing plasma (the equivalent of blood in game) from the hospital, drinking plasma packs from the fridge and growing (or buying in the market) plasma fruit. Vampires with the vegetarian trait are restricted to the plasma fruit, or else they will react the same way a veggie sim would when eating meat (nauseous)