Drinking coffee on an empty stomach can cause a spike in cortisol levels, which can lead to weight gain and a slower metabolism.
Excessive caffeine intake can also lead to increased cortisol levels and a slower metabolism.
Cortisol is a stress hormone that can cause the body to store fat and break down muscle tissue.
To avoid these negative effects, try drinking black coffee or adding a small amount of unsweetened almond milk or coconut cream.
It's also important to avoid drinking coffee first thing in the morning on an empty stomach.