How much protein lifters need
Protein targets for lifters are best thought of as ranges. A practical everyday target is about 0.7-1.0 grams per pound of bodyweight for many strength athletes. Cutting phases, very lean athletes, and high-volume blocks can justify the upper end, while bulking phases often work fine closer to the middle of the range.
More protein is not automatically better if it crowds out calories needed for training. Carbohydrates and total energy intake still matter for performance. If your protein target makes it hard to eat enough calories, sleep well, or train hard, the plan is probably too rigid.
Use the calculator as a planning number, then judge the diet by adherence, hunger, training performance, and body composition trend. The best target is the one you can hit consistently for months without making the rest of the diet worse.
- Cutting may need the high end
- Bulking can usually use the middle
- Consistency matters more than a perfect number
Practical example
If you are using the Protein Intake Calculator, enter the most repeatable inputs you have, write down the result, then check it against two weeks of real training or bodyweight data. A calculator is useful when it gives you a starting number and a way to adjust, not when it pretends one formula can remove uncertainty.
Limitations
e1RM calculators are planning tools for healthy adults. They do not replace medical advice, coaching judgment, federation rules, or lab testing. Use conservative inputs when recovery is poor, technique is changing, or the result would push you into loads you have not recently handled.
Sources
- Mifflin et al. 1990 - A new predictive equation for resting energy expenditure in healthy individuals.
- ACSM nutrition position stand - Nutrition and Athletic Performance position stand.
- ISSN protein position stand - International Society of Sports Nutrition position stand: protein and exercise.