Efficient Working BodiesOcean Beach · Est. 2016
Tool 02 · Mifflin-St Jeor

Calories and protein, roughly.

A baseline for the conversation: what your body likely burns, what a gentle cut or gain looks like, and how much protein the research commonly suggests for active adults.

Calorie & protein estimate

Start with a daily baseline.

Formula sex
Mifflin-St Jeor uses sex in the equation.
Estimated maintenance
1,960kcal

1,428 kcal at rest · activity ×1.375

Lose1,670−15%
Maintain1,960baseline
Gain2,160+10%
Protein range112–160 g
0 g200 g

0.7–1.0 g per pound of bodyweight, a common range for active adults.

A gentle deficit lands near 1,670 kcal; a small surplus near 2,160. Judge the trend over four to six weeks, not a single day.

Estimates only, using the Mifflin-St Jeor equation. Nutrition needs vary with health conditions and medication — talk to a qualified professional and ask a coach before making significant changes.

The method

A baseline, not a verdict.

Resting calories use the Mifflin-St Jeor equation, one of the most widely used predictive formulas in nutrition. Activity is a multiplier on top, not a measurement of what you actually did this week.

Protein is shown as a range because a single number implies a precision that does not exist. Targets are deliberately conservative: −15% for a gentle deficit and +10% for a small surplus.

Resting burn
Men: 10w + 6.25h − 5a + 5. Women: 10w + 6.25h − 5a − 161, with weight in kilograms, height in centimetres and age in years.
Activity
1.2 sedentary · 1.375 light · 1.55 moderate · 1.725 very active · 1.9 extremely active.
Protein
0.7–1.0 g per pound of bodyweight per day, converted from kilograms when you choose metric.
What it misses
Health conditions, medication, pregnancy, sleep, stress and the accuracy of self-reported activity. Bring the result to a coach or a qualified professional before changing much.
Book a session

Numbers are easier with a coach.

Nutrition counseling at EWB pairs the estimate with habits, a plan and someone who checks in.

Call(619) 884-4937Book a session