THE GUARANA EFFECT An energy drink with claimed aphrodisiac properties is making its debut this month. V is a vitamin enhanced carbonated drink containing guarana ­ a natural extract from the berries of the Brazilian guarana vine used by Amazonian Indians for thousands of years to provide energy and vitality. Distributor Petty, Wood says guarana has a wide range of effects, from building stamina to calming and soothing the body and relieving physical and mental stress. Priced at 99p, the 250ml can is targeted at 18 to 35 year old professionals and students. In New Zealand and Australia it is market leader, outselling Red Bull and Lucozade Energy. {{FOCUS SPECIALS }}