Protein calculator
Protein needs aren't one-size-fits-all. Your body size, activity level, and goals all influence how much may be appropriate for you.
Use the calculator below to estimate a practical daily protein range for weight loss, maintaining your current weight, or building muscle. You'll also see what that could look like across your meals.
Your protein estimate
Enter your goal, weight, and activity level to see an estimated daily protein range.
This calculator provides a general estimate for healthy adults and is not medical or nutritional advice. Protein needs can differ significantly based on age, body composition, pregnancy, medical conditions, kidney function, medications, athletic training, and other factors.
If you have kidney disease, significant liver disease, a metabolic condition affecting protein metabolism, or have been advised to restrict protein, speak with a healthcare professional before substantially changing your protein intake.
How to use this protein calculator
Choose your goal, enter your current weight, and select the activity level that best represents your typical week. The calculator will estimate a daily protein range and show what that amount could look like across three meals.
Your goal
Protein requirements can differ depending on whether you're maintaining your current weight, actively losing weight, or trying to build muscle.
Your weight
Protein recommendations are commonly expressed relative to body weight, although body composition can provide additional context.
Your activity
Regular exercise, particularly resistance training, can increase protein needs compared with a sedentary lifestyle.
Think of the result as a starting range, not a rigid prescription.
How much protein do you actually need?
Enough depends on what you're asking your body to do.
Everyday baseline
0.8 g/kg/day
The established protein RDA for generally healthy sedentary adults. It represents a baseline intended to meet the needs of most healthy adults, not necessarily an optimized target for every goal.
Regular exercise
People who exercise regularly often use higher ranges than the baseline recommendation to support training, recovery, and lean mass.
Weight loss or muscle growth
Protein targets may rise further when the objective is preserving lean mass during energy restriction or supporting adaptation to resistance training.
Why protein matters during weight loss
When you lose weight, the body doesn't exclusively lose fat. Some lean tissue can be lost as well.
Protein is particularly relevant during a calorie deficit because adequate intake can support lean-mass retention while also contributing to satiety.
Lean mass
Protein provides amino acids needed to maintain and repair muscle tissue.
Satiety
Protein-rich foods can help support fullness, which may make a calorie deficit easier to sustain.
Recovery
Adequate intake can support recovery when exercise is part of a weight-management plan.
The objective isn't simply weight loss. It's improving body composition while protecting function and strength.
Protein and strength work better together
Protein alone does not tell your muscles to grow. Resistance training provides the mechanical stimulus. Protein supplies the raw material for repair and adaptation.
On a GLP-1? Protein deserves more attention, not less.
GLP-1 medications can substantially reduce appetite. That can make weight loss more achievable, but eating less overall can also make it harder to consume enough protein and other essential nutrients.
During meaningful weight loss, some lean mass is typically lost alongside fat. This is not unique to any one method of losing weight. Adequate protein and resistance training are two important tools for supporting muscle while weight decreases.
If your appetite is smaller, prioritize what matters most.
- Protein-rich foods
- Nutrient-dense meals
- Adequate fluids
- Fruits and vegetables
- Fiber
- Resistance exercise
- Appropriate clinical monitoring
Protein alone is not enough to preserve muscle. Strength training remains an important part of the picture.
When appetite is low
Large meals may become difficult during GLP-1 treatment. That can make protein distribution more practical than trying to consume most of your daily target at dinner.
Start with protein
When appetite is limited, consider eating the protein portion of the meal first.
Think smaller
Greek yogurt, eggs, cottage cheese, fish, tofu, edamame, or a protein-rich smoothie can provide meaningful protein without requiring a large meal.
Spread intake
Protein across several eating occasions may be easier to tolerate than one very large serving.
Don't forget total nutrition
Protein matters, but so do fiber, healthy fats, micronutrients, and adequate energy intake.
Does protein distribution matter?
Your daily protein intake is important, but distributing protein across the day can make the target easier to reach and may better support muscle protein synthesis than consuming most of it in a single meal.
For many exercising adults, research commonly evaluates individual protein servings in the range of roughly 20 to 40 grams, or approximately 0.25 g/kg per serving, depending on body size, age, training status, and other factors.
Someone with a higher daily target may reasonably consume more than 40 grams at a meal. The calculator's per-meal number is simply a way to translate your daily range into something practical.
Protein isn't just a number
Different foods bring different nutrients along with their protein. A useful protein strategy considers the whole food, not just the grams on the label.
Fish and seafood
Protein plus nutrients such as omega-3 fatty acids in certain fish.
Poultry
High-quality protein that can fit easily into many meals.
Eggs
Protein plus a range of vitamins and minerals.
Greek yogurt and cottage cheese
Protein-rich dairy options that can work well for meals or snacks.
Beans and lentils
Plant protein plus fiber and other nutrients.
Soy foods
Tofu, tempeh, and edamame can provide substantial plant-based protein.
Nuts and seeds
Protein alongside healthy fats and minerals, although portions can be energy-dense.
Can you get enough protein from plants?
Yes. A well-planned plant-forward or plant-based diet can provide adequate protein. Individual plant foods can vary in their amino-acid profiles, but eating a varied diet across the day can provide the essential amino acids your body needs.
- Tofu
- Tempeh
- Edamame
- Lentils
- Beans
- Chickpeas
- Seitan
- Nuts
- Seeds
- Whole grains
- Plant-based protein powders when useful
Make the target easier to reach
Here is what a day targeting approximately 120 grams could look like.
This is an illustration, not a meal plan.
Protein still exists within your overall energy intake
Each gram of protein provides approximately 4 calories. A higher-protein eating pattern can be useful during weight loss, but adding protein on top of everything you're already eating does not automatically create a calorie deficit.
Protein works best as part of an overall nutrition strategy rather than as an isolated target.
Calculate your estimated calorie needs →Can you eat too much protein?
More isn't automatically better. Once protein needs are met, continually adding more protein does not necessarily produce additional muscle or weight-loss benefit.
Very high protein intakes can also displace other important parts of a balanced diet, including fiber-rich carbohydrates, healthy fats, fruits, and vegetables.
People with kidney disease or certain other medical conditions may need individualized protein recommendations.
Muscle isn't built with protein alone
Muscle health reflects the interaction between nutrition, movement, recovery, hormones, age, and overall health.
- Resistance training
- Adequate nutrition
- Protein
- Recovery
- Sleep
- Hormonal health
- Energy availability
- Consistency
Protein provides material. Your biology determines what happens with it.
Losing weight? Protect what matters while you do it.
Weight management is about more than seeing the scale move. ANUWELL connects eligible patients with physician-guided care that considers weight, metabolic health, nutrition, medical history, medications, and the broader factors influencing progress.
GLP-1 weight care, in the format that fits.
Pricing shown is the starting dose; your provider confirms the right protocol during review.
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Tirzepatide Injection
Compounded tirzepatide, a once-weekly injection that suppresses appetite and supports steady, meaningful weight loss.
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Semaglutide Injection
Compounded semaglutide, a once-weekly injection titrated to your response for appetite control and lasting weight loss.
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GLP-1 Microdosing
Compounded vial
Low, steady weekly GLP-1 paired with a supporting compound in one vial — gentler on the gut and easier to sustain.
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These are prescription treatments. A prescription is issued only if an independent licensed provider determines it is appropriate following review of your health history. Compounded medications are not reviewed or approved by the U.S. Food and Drug Administration. Full medical and prescribing disclosures are available in the site footer.
More tools to understand your numbers
Protein needs vary according to body size, activity level, age, health, energy intake, and goals. This calculator provides an estimated range rather than a single universal target.
Higher protein intake is often used during weight loss to help support satiety and lean-mass retention. Research commonly evaluates ranges around 1.2 to 1.6 g/kg/day during active weight reduction, although appropriate intake varies between individuals.
For people performing regular resistance exercise, research commonly supports protein intakes above the basic adult RDA. The appropriate range depends on body weight, training volume, energy intake, and other factors.
There is no single universal GLP-1 protein target. Because these medications can substantially reduce appetite, adequate protein and overall nutrition deserve particular attention during active weight loss. Individual targets should account for body size, body composition, health, and activity.
Adequate protein can support lean mass during weight loss, but protein alone is not enough. Resistance training is also important for supporting muscle strength and lean mass.
It depends. For some people, 100 grams may fall within an appropriate range. For others it may be above or below their needs. Body weight, goals, activity, age, and health all influence the answer.
Spreading protein throughout the day can make a daily target easier to reach and may support muscle protein synthesis. Your meals do not need to contain identical amounts.
Very high protein intake is not necessary for most people and may be inappropriate for individuals with certain medical conditions. People with kidney disease or other conditions requiring protein restriction should follow individualized medical guidance.
Both animal and plant foods can contribute meaningfully to protein needs. A varied eating pattern can provide adequate protein and essential amino acids.
Protein questions, answered
Protein questions, answeredFAQ — 09
See all FAQs →Protein is one part of the picture. Not the whole picture.
Understanding your health means looking beyond a single number. ANUWELL combines physician-guided care with the information needed to make more informed decisions about weight, metabolic health, hormones, longevity, and treatment.
References
- Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. National Academies Press; 2005.
- Jager R, Kerksick CM, Campbell BI, et al. International Society of Sports Nutrition position stand: protein and exercise. Journal of the International Society of Sports Nutrition. 2017;14:20.
- Morton RW, Murphy KT, McKellar SR, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine. 2018;52(6):376-384.
- American College of Lifestyle Medicine, American Society for Nutrition, Obesity Medicine Association, and The Obesity Society. Nutritional priorities to support GLP-1 therapy for obesity: joint advisory. 2025.
- U.S. Department of Agriculture and U.S. Department of Health and Human Services. Dietary Guidelines for Americans, 2020-2025. dietaryguidelines.gov