True or False: A person's caloric needs remain unchanged even after significant weight loss.

The correct response is based on the understanding that a person's caloric needs do change following significant weight loss. This concept is rooted in the body's adaptive responses to changes in energy availability. When a person loses weight, their overall body mass decreases, which in turn generally leads to lower basal metabolic rate (BMR)—the number of calories the body needs to maintain basic physiological functions at rest.

With a smaller body size, there is often less muscle mass and overall energy expenditure needed for daily activities, resulting in a reduced caloric requirement. Therefore, after significant weight loss, an individual typically has to adjust their caloric intake to match their new needs to maintain their weight.

In contrast, the other choices imply various scenarios or conditions that do not accurately portray the fundamental physiological change in caloric needs post-weight loss. Understanding that caloric needs decrease after weight loss is essential for effective weight management and for helping clients sustain their weight in the long term.