Personally, rather than talking pounds / stones / kilograms - it would be more accurate to consider your BMI. The closer you are to a BMI of 23-25 and remain there - the greater your results will be.
Ideally, for you to have the best possible cosmetic result you SHOULD be at your ideal weight (based on actuarial tables - not what you may feel is the goal (which could be too harsh or too lax)) for at least 4-6 months.
If a tummy tuck is done and you go one and lose more weight, you WILL have more skin looseness than you and your surgeon intended.
It goes without saying that for your surgery to go well, your nutritional status must be good. Being in negative protein balance to squeeze further weight loss from your body will result in poor healing with widened scars.
Good Luck.
Peter A Aldea, MD
