Weight loss is challenging, especially as men get older. After turning 40, your metabolism slows down, muscle mass decreases, and losing fat becomes a tougher task. But what if you could have real, science-backed help to improve your metabolism, reduce fat, and take control of your body without the crashes or side effects common with stimulant fat burners? That’s where CalmLean comes in. Many consider it one of the best fat burner supplements for men over 40. CalmLean claims to provide fat-burning effects without caffeine or stimulants. But how effective…