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If patients are obese, their physicians should refer them to behavior-based weight loss programs or offer their own, a national panel of experts says. Yet many doctors aren't having the necessary conversations with their patients. Tetra Images/Getty Images hide caption

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A small new study shows that successful dieters had an abundance of a bacteria called Phascolarctobacterium, whereas another bacteria, Dialister, was associated with a failure to lose weight. sorbetto/Getty Images hide caption

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Diet Hit A Snag? Your Gut Bacteria May Be Partly To Blame

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Cutting back up to 25 percent of your calories per day helps slow your metabolism and reduce free radicals that cause cell damage and aging. But would you want to? VisualField/Getty Images hide caption

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You May Live Longer By Severely Restricting Calories, Scientists Say

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Harnessing the power of wearable devices, data, education and a peer support group, people with prediabetes can lose weight and fend off the disease. Katherine Streeter for NPR hide caption

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Katherine Streeter for NPR

This Chef Lost 50 Pounds And Reversed Prediabetes With A Digital Program

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Resolved To Lose Weight? We Gave Food-Tracking Apps A Try

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Yo-Yo Dieting May Pose Serious Risks For Heart Patients

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An increasing number of overweight Americans have lost the motivation to diet. enisaksoy/Getty Images hide caption

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Is Dieting Passe? Study Finds Fewer Overweight People Try To Lose Weight

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A new study counters the presumption that bariatric surgery is just a short-term fix for severe obesity. Hero Images/Getty Images hide caption

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Bariatric Surgery Can Help People Keep Weight Off Long Term

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