The Best Time of Day to Take Vitamin D—Morning or Night?

🔆Why Timing Matters
Vitamin D isn’t just another supplement—it plays a huge role in regulating your immune system, mood, and hormone production. But timing matters. Since vitamin D is tied to your body’s natural circadian rhythm (your internal clock), when you take it can affect how well it works—and even how well you sleep.

☀️Morning Is Best
Your body expects light and vitamin D at the start of the day. Taking it in the morning aligns with your body’s natural sunlight exposure, which helps regulate cortisol (your stress hormone) and wakefulness. Some studies even suggest morning doses may enhance mood and energy throughout the day.

🌙Why You Should Avoid It at Night
Vitamin D may slightly suppress melatonin—the hormone that signals it’s time to sleep. Taking it at night could throw off your sleep quality or make it harder to fall asleep for some people. If you’re struggling with insomnia or inconsistent sleep, your nighttime supplement routine might be part of the problem.

🥑How to Take It for Maximum Absorption
Vitamin D is fat-soluble, which means it needs dietary fat to be absorbed properly. Always take it with a meal that includes healthy fats—think avocado toast, nut butter, or eggs. Bonus: pairing it with vitamin K2 (like in Greenlabco’s formula) can help direct calcium to your bones instead of your arteries.

➡️Greenlabco’s Vitamin D3 + K2 blend is designed for daytime use and formulated for optimal absorption—so your body gets exactly what it needs, when it needs it.