Nail discoloration was reported by 46% of GLP-1 users versus 17% of non-users, while scalp inflammation accompanied hair loss in most medication users studied.
https://www.foxnews.com/health/people-weight-loss-drugs-report-fingernails-falling-researchers-uncover-surprising-link
https://www.foxnews.com/health/people-weight-loss-drugs-report-fingernails-falling-researchers-uncover-surprising-link