Does metabolism return to normal once your weight has been stable for 6 months after weight loss?

The short answer is, unfortunately, no. To explain this, let’s use some examples: Let’s say “Person A” weighs 65kg (5’6” height) for their entire adult life and has a metabolic rate of 2000 calories per day. “Person B”, on the other hand, lost 22kg over the past year, and now weighs 65kg (5’6” height). You would assume that this person would now have the same metabolic rate as “Person A” (2000 calories per day). This is not the case, however. The person that lost the weight would have a metabolic rate 10-15% lower (about 1800 calories per day) than the person who was weight stable all of their adult life. Whether or not the metabolic rate of the person who lost the weight would slowly creep up to 2000 calories per day, over the next few years, is not known.