HEALTH certificates were proposed by the Model Health Inquiry, set up last year as a response to growing anxieties that the "heroin chic" look was endangering not only the models who had to create it but young women who copy it. Last year, Eliana Ramos, a teenage model, died after going on an extreme diet to capture the size zero look. Six months earlier, her sister, Luisel Ramos, 23, collapsed and died on a catwalk in the Uruguayan capital Montevideo. She had suffered complications from anorexia linked to dieting.