You may have encountered manufacturers claiming fat or weight loss benefits by using their EMS machines. However, to date, no research supports this claim. Athletes or gym-goers often use EMS machines during exercise, though. Perhaps, this habit is the reason why people often associate EMS to a slim waistline.
But, according to one study, athletes do these to speed up muscle recovery and encourage blood flow after their workout. EMS can complement your dietary and exercise regimen, but it may not provide significant trimming effects when used on its own. Bottom line: it is not a weight-loss magic tool. So, for now, stick to reduced caloric intake and increased activity levels to stay fit and healthy.