What The Number Means
This tool multiplies body weight by a selected grams-per-kilogram factor. The result is a planning target for total daily protein, not a diagnosis of deficiency and not a guarantee of better training results.
The 0.8 g/kg option reflects the adult RDA framework for generally healthy adults. Higher selectable factors are exercise-oriented planning values and should be interpreted with total calories, training, age, and health.
Formula And Options
- 0.8 g/kg: baseline adult RDA option.
- 1.0 g/kg: modest planning increase.
- 1.4 g/kg: regular training option.
- 1.8 g/kg: higher resistance-training option.
- 2.2 g/kg: high-intake planning option, not a universal requirement.
Worked Example
A 70 kg person selecting 1.4 g/kg receives 70 x 1.4 = 98 g protein per day. At four meals, an even distribution would average about 24 to 25 g per meal, although equal portions are not required.
Choosing And Using A Target
Start with the lowest factor that reasonably matches your situation, then consider training volume, calorie intake, appetite, food access, and preference. A higher number is not automatically better.
Build the total from varied foods and distribute it across meals in a sustainable way. The calculation covers quantity only; it does not assess amino-acid quality, overall diet quality, or energy adequacy.
Who Needs Individual Guidance
People with kidney disease, liver disease, metabolic disorders, pregnancy, breastfeeding, pediatric needs, frailty, major illness, or a prescribed diet should not choose a high protein target from this tool alone. Older adults and athletes may also benefit from individualized advice when goals are complex.
Frequently Asked Questions
How much protein does an average adult need?
The Recommended Dietary Allowance is about 0.8 grams per kilogram of body weight for sedentary adults. Active people and strength trainees often use higher targets, commonly around 1.4 to 2.2 grams per kilogram.
Can high protein intake harm healthy kidneys?
For people with healthy kidneys, higher protein intake is generally considered safe within reasonable dietary ranges. People with kidney disease or medical restrictions should follow clinician guidance.
Should protein be eaten all at once?
Most people do better distributing protein across several meals. This can improve meal quality and support muscle protein synthesis throughout the day.