There is no healthy way to lose 10 pounds in a day. If a proper diet and exercise routine is not followed, the weight will come back quickly, states Mark Rouselle, PhD.
Extreme dieting is not healthy and most of these diets restrict food intake to a few items. Essentially, the body is being starved, according to David Grotto, the creator of Nutrition Housecall. This will cause the body to store more fat. These diets can also slow weight loss in the future since muscle weight is being lost. Following a healthy diet and exercise plan may take longer to see results. However, the weight will stay off. If someone needs to look thinner, good posture can make it appear as if weight was lost.