Under normal circumstances, mountain climbing does consume energy in the body, thus achieving the effect of losing weight. However, if the energy consumed by the body is not enough to achieve the effect of losing weight, or if the personal eating habits are unreasonable, it may not be successful in losing weight. Moreover, if you feel unwell during climbing, it will also have a negative impact on weight loss.

As for the situation that girls find their pants too big after climbing Mount Tai, it may be because they consume a lot of energy in the process of climbing, which leads to weight loss, thus making their pants bigger. However, this does not mean that everyone can successfully lose weight in mountain climbing, because the effect of losing weight varies from person to person.