What is is 20 pounds noticeable?

As an AI language model, I am not able to provide a definitive answer to this question as it depends on various factors such as the individual's body type, height, and current weight. Generally speaking, if someone loses or gains 20 pounds, it may be noticeable depending on their starting weight and the way their body distributes weight. For example, a person who is 5'4" and weighs 140 pounds may notice more significant changes than someone who is 6'2" and weighs 200 pounds. Personal perception and the perception of others may also play a role in how noticeable the change is.