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🔥 Mifflin–St Jeor BMR / REE

UseWhen to use: outpatient nutrition planning in ambulatory adults.

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StrataREE in kcal/day; multiply by activity factor for rough TEE.

LimitsWhen not to use: as ICU calorie prescription alone. · Pitfall: using ideal instead of actual weight without intent. · Prefer indirect calorimetry when critical illness.

SourceMifflin MD et al. St Jeor

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.

Methodology · worked example, guidelines & full notes
Clinical takeaway

kcal/day REE.

When to use

When to use: outpatient nutrition planning in ambulatory adults.

How it works

REE=10·wt(kg)+6.25·ht(cm)−5·age+(+5 male / −161 female).

Key points

  • kcal/day REE.
  • Sex constant ±.
  • Next: dietitian targets.

References

  • Mifflin MD et al. St Jeor

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

SexMale (+5)
Weight70 kg
Height170 cm
Age45 y
Activity factor (optional TEE)Light ×1.375

→REE1543kcal/d

  • TEE (if AF applied):2121 kcal/d
  • Formula:10·wt + 6.25·ht − 5·age + sex const
SexFemale (−161)
Weight70 kg
Height170 cm
Age45 y
Activity factor (optional TEE)Very active ×1.725

→REE1377kcal/d

  • TEE (if AF applied):2374 kcal/d
  • Formula:10·wt + 6.25·ht − 5·age + sex const
Verification & sources · governance
FAQ

Frequently asked questions

Does Mifflin–St Jeor BMR / REE upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is Mifflin–St Jeor BMR / REE calculated in practice? Can you show a worked example?
Inputs: Sex Male (+5), Weight 70 kg, Height 170 cm, Age 45 y, Activity factor (optional TEE) Light ×1.375 → Result: REE 1543 kcal/d(TEE (if AF applied): 2121 kcal/d, Formula: 10·wt + 6.25·ht − 5·age + sex const) Inputs: Sex Female (−161), Weight 70 kg, Height 170 cm, Age 45 y, Activity factor (optional TEE) Very active ×1.725 → Result: REE 1377 kcal/d(TEE (if AF applied): 2374 kcal/d, Formula: 10·wt + 6.25·ht − 5·age + sex const)
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