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Supplement Dosing Checker.

Verify supplement doses against daily recommended values and safe levels

On-device calculationNo signup
01

Set your values

Results update as you type.

⚠️ Important limitation

This tool only performs arithmetic using the limit you enter; it cannot determine a safe dose, verify a product label, or check medication interactions. Confirm any limit and dose with a qualified healthcare professional.

Personal Information

70.0kg
2200
35.0years
1120

Supplement Details

500.0mg
110000
Dose Unit
Frequency per day
2000.0mg
10050000

Comparison

Total Daily Dose

500mg

Once daily

Dose per kg body weight

7.143mg/kg

Normalized for body weight

Percent of Comparison Limit

25%

At or below the limit you entered

Comparison Status

At or below limit

Arithmetic comparison only

Authoritative Source & Methodology
Reviewed: 2026-07-12

Source: NIH Office of Dietary Supplements Recommended Allowances (US / International)

Reviewer: Mathify content team

Notice: Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease.

Use Cases

Verify daily supplement routine

Quickly check if the doses in your daily supplement stack are within safe ranges compared to recommended values.

Example: Enter vitamin D 1000 IU, 1 serving per day, to see if it's within the safe upper limit.

Assess high-dose supplements

If you're considering a high-dose supplement, use the checker to see if it exceeds safe upper limits.

Example: Check a 5000 IU vitamin D supplement to see if it's above the recommended safe level.

Frequently Asked Questions

How does the Supplement Dosing Checker work?
You enter the supplement name, dose per serving, and servings per day. The tool compares your total daily intake against established daily recommended values and safe upper limits, then flags if your dose is within, below, or above the safe range.
What are daily recommended values and safe levels?
Daily recommended values (DRVs) are the average daily intake levels sufficient to meet nutrient requirements of most healthy individuals. Safe upper limits (ULs) are the maximum daily intake unlikely to cause adverse health effects. The checker uses these to assess your supplement dose.
Is this tool a substitute for professional medical advice?
No. This checker is for educational and reference purposes only. It does not diagnose, treat, or prevent any condition. Always consult a healthcare provider before starting, stopping, or changing supplement doses, especially if you have health conditions or take medications.

Tips & Common Mistakes

Tips

  • Always read the supplement label to find the exact dose per serving and the number of servings you take daily.
  • Consider all sources of the nutrient, including multivitamins and fortified foods, when assessing total daily intake.
  • Use the checker as a screening tool, but consult a healthcare professional for personalized advice.
  • Re-check your doses if you change brands or formulations, as concentrations may vary.

Common Mistakes to Avoid

  • Forgetting to multiply the dose per serving by the number of servings taken per day.
  • Assuming that 'more is better' – exceeding safe upper limits can be harmful.
  • Ignoring other sources of the same nutrient in your diet or other supplements.

Last updated: August 13, 2026