According to Dr. Mike Roussell for Shape magazine, there is not a safe diet available that works without the help of physical exercise to accomplish 10 pounds of weight loss in one week. Roussell recommends pairing at least six intense fitness sessions with a healthy diet low in carbohydrates and calories to achieve this goal. Metabolic resistance and interval training burn large quantities of calories per session for maximum results.
A person with more weight to lose can achieve a higher fraction of weight loss in a single week than someone who is already relatively fit, says Roussell. If a person is morbidly obese, strict calorie-cutting paired with moderate exercise may be enough to see a 10-pound weight loss in just seven days. However, people who are out of shape and attempt to perform intense physical training without much experience are at risk of sustaining injuries and setting themselves back in achieving their goals.
It is important not to push for rapid weight loss without a long-term plan in effect, otherwise the weight that is lost can come back just as quickly as it disappeared. Roussell recommends prolonging an aggressive weight loss plan to at least one month to give the body time to heal after demanding workout sessions and comprehensive dietary changes.