Turns out even advertisements for fast food are making children fat. A recent study has found that familiarity with junk-food ads is linked with obesity in young people. Young people who watch one extra junk-food advert a week (over the average of six) consume an additional 350 calories in foods high in salt sugar and fat (HFSS) every week (18000 each year) the research claimed. The take-home message is that junk food marketing is associated with obesity in young people of all ages and we know that obesity is linked to at least 13 types of cancer said Dr Jyotsna