THE WEIGHT LOSS TRAP Alexandra Sifferlin’s June 5 cover story on the science of dieting prompted many readers to share their own struggles with losing weight. The article “hit a nerve” with Harold Jacobson, 72, of Macomb, Mich., who said he’s been struggling to keep his weight in check for the past 20 years. “The truth about weight loss is that most Americans fall for quick-fix gimmicks,” said Ana Hotaling of Chelsea, Mich., who noted that she shed pounds without touching diet pills, powders, shakes or subscription meals. Wayne Williams of Adelphi, Md., wondered why the article didn’t mention the ubiquity of processed food in today’s American diet, while several bariatric surgeons wondered the same about surgical treatments for obesity. Meanwhile, Steven Lowrance of West Lafayette, Ind., pointed out that…