Supplements & OTC

Vitamin D, iron, omega-3, magnesium forms, probiotics, protein powder cost, interactions, herbal extracts, nootropic stacks, and supplement budgets.

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Calculate active compound content and whole-herb equivalence from extract ratio and standardization percentage.

Calculate elemental iron dosing by supplement type and deficiency severity, with duration estimates.

Compare magnesium supplement forms by elemental content, absorption rate, and effective dose per tablet.

Build a nootropic supplement stack for focus, memory, mood, or sleep with weight-adjusted dosing and cycling.

Calculate EPA and DHA targets by health goal, and capsules needed for fish oil, krill oil, or algae supplements.

Determine the target CFU count and strain diversity for probiotic supplements based on health goal and age.

Calculate cost per serving and cost per gram of protein to compare protein powder value across brands and types.

Plan your monthly supplement budget by separating essential vs optional supplements and finding savings.

Check for absorption interactions between common supplements and get timing recommendations.

Calculate daily vitamin D (IU) needed to reach your target serum level based on current level, weight, and sun exposure.