Heavy metals in wine could pose potential health problems to regular drinkers, claims a scientific report published Nov/08. The report, which appeared in the online journal Chemistry Central, claims that a daily 250ml glass of red wine could expose wine drinkers to hazardous levels of metal ions linked to Parkinson's disease & cancer. According to the study, wines from Portugal, Hungary, France & Austria are among those to have dangerous levels of metal ions. Argentinian, Brazilian & Italian wines registered very small levels of the so-called 'heavy metals." Using a formula developed in the US to estimate health risks, Kingston University, London analysed the wines against a Target Health Quotient (THQ). A THQ of one is considered safe.