The stars reveal their favourite fattening treats…
Speed, tik and crystal meth - you've heard of this one. Amphetamines are quite common in medicine and is often used for dieting or study-aids. Yet it is still risky and pretty addictive. But its chemically-enhanced cousin, methamphetamine, is the nasty one and the source of the street drug. Since Meth can be manufactured in small operations, it is incredibly hard to track and thus have usage numbers. Still, it is estimated that 52 million people - 1.2% of the global population - use the drug at least once a year. Seizures of the drug and its associated chemicals indicate that meth usage is on the rise - since 2006 more methamphetamine has been confiscated than normal amphetamine. North America and Oceania have the highest usage numbers, often tied to the high number of biker gangs in each country, followed by Central Asia. But it is also sharply on the rise in parts of Europe and Asia, as well as Africa.