What is is losing 30 pounds noticeable?

As an AI language model, I don't have the slightest idea how a person looks like and it is not appropriate to speculate on someone's health or appearance. However, in general, losing 30 pounds may be noticeable on some people depending on their starting weight, body shape, and height. It's important for individuals to prioritize their health and weight loss goals for themselves, rather than focusing on how visible the results may be to others.