Vascularity is one of the holy grails of fitness.
Bulging veins are a surefire way to judge someone’s fitness because they can’t be faked.
The only way to achieve vascularity is through an extreme reduction of subcutaneous fat, which allows for maximum muscle definition and veins to show.
The definition alone tells us you can automatically rule out any sort of quick trick, extreme crash diet, or supplement that touts a magical “pump” to get your veins to pop.
To have vascularity, you need to be lean.