Free tool
When to take your supplements
Pick what you take and get a simple routine for the day: what goes with breakfast, lunch or dinner, what to keep apart, and when to check with your doctor first. Every rule comes from published sources such as PubMed Central, NIH Office of Dietary Supplements, MedlinePlus, PubMed.
What do you take?
Pick one or more to see your day.
How it works
Your day has three moments: breakfast, lunch and dinner. Each supplement goes where its sources say it works best — morning, evening, or either — and with or without food. Fat-soluble ones (such as Astaxanthin) go with a meal, because they need some fat to be absorbed.
Some supplements get in each other’s way: Calcium and Iron are best kept at least 2 hours apart. When you pick two like that, the planner keeps them the stated number of hours apart, shows the source, and tells you if your day cannot fit the gap.
The planner does not know your health, your medicines or your doses. Read the cautions it shows, follow the label, and ask your doctor or pharmacist before you start something new — especially if you are pregnant, nursing or take prescription medicine.
Last reviewed October 13, 2026.
Supplements A–Z
A
C
N
S
V
These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. It is general information, not medical advice: talk with your doctor or pharmacist before starting a supplement, especially if you are pregnant, breastfeeding, take medicine or have a health condition.