Question 1

Why does timing matter for supplements?

Accepted Answer

Some supplements compete for absorption (e.g., calcium blocks iron), while others need food or an empty stomach. Proper timing maximizes absorption and avoids interactions — meaning you get more benefit from the same supplements.

Question 2

Can I take all my supplements at once?

Accepted Answer

It depends. Fat-soluble vitamins (A, D, E, K) can be taken together with a meal. But calcium and iron should be separated by 2+ hours, and some supplements are better in the morning (D3, B vitamins) vs evening (magnesium, melatonin).

Question 3

How does this differ from the Stack Checker?

Accepted Answer

The Timing Planner focuses on scheduling. The Stack Checker goes further — it also detects duplicate ingredients, interactions, and generates an overall stack score. Use both together for a complete analysis.

Supplement Timing Planner

Select Supplements

Your Daily Schedule

Morning

With a Meal

Evening