Gary katz is a repeat offender. A few years ago, a nutritionist helped him to reduce his blood-cholesterol level from a troubling 286 to a reasonable 177. But after his annual check-up in April, Mr Katz found that his cholesterol was once again too high. The businessman turned to the same nutritionist as before, but now he and his food adviser have a secret weapon: the mobile phone. Through a new service called My-FoodPhone, Mr Katz uses the camera built into his phone to take a picture of every meal. This is far easier than writing everything down in a food log, which the 44-year-old New Yorker did the last time he was fighting high cholesterol. At the end of each week, his nutritionist e-mails him a dietary critique. "I was never one for the whole food-log thing," says Mr Katz, who owns a floor-covering business. "Now I'm doing better at keeping track of what I eat. I always have my phone with me-it's like having a conscience hanging on your waist."
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