This is the 2412th most frequent Japanese word.
ブーム
A trend or craze.
ブーム is used here to indicate a significant trend or widespread popularity of healthy eating.
最近では、健康的な食事がブームになっています。
Recently, healthy eating has become a boom.
ブーム in this sentence refers to the surge in popularity or emergence of K-pop as a major trend.
音楽業界では、新しいK-popのブームが広がっています。
In the music industry, a new K-pop boom is spreading.
Here, ブーム signifies the local tendency or craze for camping among the residents.