To build muscle, most people who regularly exercise can aim for around 1.4–2.0 grams of protein per kilogram of body weight per day. For maximising muscle growth alongside resistance training, around 1.6 g/kg/day is a strong evidence-based target for many healthy adults.
But protein needs are not exactly the same for everyone. Your body weight, age, training intensity, overall calories, food preferences and fitness goal all matter.
This is something I feel gets unnecessarily complicated online. You don't need to suddenly start eating enormous amounts of protein because you joined the gym. First calculate what your body actually needs, then make that amount achievable through your everyday diet.
Weight-Based Calculation
A simple formula is:
Body weight (kg) × 1.4–2.0 = daily protein target in grams
For example:
Body weight | Approx. protein/day |
|---|---|
50 kg | 70–100 g |
60 kg | 84–120 g |
70 kg | 98–140 g |
80 kg | 112–160 g |
90 kg | 126–180 g |
You don't necessarily need to target the highest number. Someone beginning strength training and someone doing intense bodybuilding preparation have completely different requirements.
Evidence-Based Target
Research gives us a particularly useful number: approximately 1.6 g/kg/day.
A major meta-analysis covering 49 studies and 1,863 participants found that protein supplementation improved gains in muscle mass and strength during resistance training. Gains in fat-free mass appeared to plateau at around 1.62 g/kg/day, although individual requirements can vary.
So, for a 70 kg person:
70 × 1.6 = 112 g protein/day
That's a much more useful target than randomly deciding you need 200 grams because a fitness influencer does.
Meal Distribution
Instead of eating very little protein all day and trying to somehow fit 80 grams into dinner, distribute it across your meals.
For example, if your target is 120 g:
Breakfast → 25–30 g
Lunch → 25–30 g
Snack → 20–25 g
Dinner → 30–35 g
Research suggests total daily protein intake is particularly important, so I wouldn't obsess over hitting some magical 30-minute “anabolic window” after every workout.
Protein Sources
You don't necessarily need protein powder to build muscle.
Good sources include:
Eggs
Milk and Greek yoghurt
Paneer and cottage cheese
Chicken and fish
Lentils and dals
Chickpeas and rajma
Soybeans, tofu and tempeh
Peas and beans
Nuts and seeds
Whey or plant protein supplements
For Indian vegetarians especially, I find planning matters more because a meal can look nutritionally complete while actually containing very little protein. Dal, curd, paneer, milk, chickpeas and other protein-rich foods need to be intentionally included.
More vs. Better
More protein doesn't automatically mean more muscle.
Research found no additional increase in resistance-training-related fat-free mass beyond roughly 1.6 g/kg/day on average, though the confidence interval extended higher and individual needs vary.
So if your body needs around 110 g, consuming 200 g doesn't magically double muscle growth.
Protein is only one part of the equation. You also need sufficient calories, carbohydrates, micronutrients, sleep and recovery.
Training Importance
This is probably the most important section.
Protein alone doesn't build significant muscle. Resistance training provides the stimulus that tells your body it needs to adapt.
Progressive overload matters: gradually increasing weight, repetitions, sets or training difficulty gives your muscles a reason to adapt.
You can't out-protein a workout routine that isn't challenging your muscles.
FAQs
Is 100 grams of protein enough to build muscle?
It can be. For a 60 kg person, 100 g equals about 1.67 g/kg/day, which sits comfortably within evidence-based muscle-building recommendations.
Is 1.6 g/kg of protein enough?
For many healthy adults doing resistance training, approximately 1.6 g/kg/day is a strong evidence-based target.
Do beginners need protein powder?
No. Protein powder is simply a convenient source of protein. You can meet your requirements through food.
Should I eat protein immediately after working out?
You don't need to panic if you can't eat immediately. Your overall daily protein intake and consistent training matter greatly.
Can vegetarians build muscle?
Absolutely. Dairy, lentils, beans, chickpeas, soy foods, nuts, seeds and other protein-rich foods can contribute to a muscle-building diet.
Must Read: Is taking protein powder after workout good for health?
