What is generally considered “quick” or “rapid” weight loss, in terms of pounds lost per week or month? Beyond just the definition, what are the potential health risks and side effects associated with losing weight too quickly? Conversely, what is widely accepted by medical professionals and registered dietitians as a healthy and sustainable rate of weight loss, both in terms of pounds per week or month and as a percentage of initial body weight? Are there different recommendations for individuals with significantly higher BMIs or specific health conditions? And what are some strategies individuals can implement to ensure they’re losing weight at a healthy and sustainable pace and maintaining that loss long-term?

Answer

What is Considered Quick Weight Loss?

Quick weight loss is generally defined as losing more than 1-2 pounds (0.45-0.9 kg) per week or losing a significant percentage of body weight within a short period (e.g., more than 1% of body weight per week). This can also be defined as weight loss achieved through very low-calorie diets (VLCDs), extreme exercise regimens, or the use of weight loss medications or supplements (often without medical supervision). Losing 10 pounds in a week might be considered rapid weight loss.

What is a Healthy Rate of Weight Loss?

A healthy and sustainable rate of weight loss is typically considered to be 1-2 pounds (0.45-0.9 kg) per week. This rate allows the body to adjust gradually and is more likely to result in long-term weight management. This can be achieved through a combination of dietary changes and increased physical activity, creating a moderate calorie deficit (reducing calorie intake by 500-750 calories per day).