Check out the latest alleged slimming sensation, the Sciona diet, whereupon dieters swab the inside of their cheek to collect a DNA sample, fill out a questionnaire, and return both to the Sciona laboratory, which promptly analyzes 19 genes that affect bone health, heart health, antioxidant and detoxification, insulin resistance, and inflammation. Based on their findings, Sciona's medical team then recommend several key dietary changes to counteract the genetic weaknesses. Some experts have already suggested that it might all be a load of balls. And yes, that's a medical expression.