How to Detect and Fix n+1 Queries in Laravel

n+1 queries are a performance issue in ORM frameworks like Laravel's Eloquent, occurring when an initial query is followed by multiple individual queries. This slows down applications, especially with large datasets. Detection can be automated using beyondcode's Query detector. Solutions include eager loading, join queries, batch processing, caching, and database optimization. Eager loading can be achieved with methods like 'with()' and 'load()', reducing the number of queries executed.