Not after getting up! When is the healthiest time for coffee?. As of: January 30, 2024, 6:11 a.m By: Julia Stanton CommentsPressSplit US researchers have investigated when the healthliest time to consume coffee is: it's not after waking up.

Coffee causes cortisol levels to increase. So if you drink this immediately after. waking up, your body will be getting caffeine that it doesn't need. This can disrupt the natural flow of cortisol. In addition, the effect of caffeine is also weakened.