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How much protein do you need to gain muscle?

Animal protein sources
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The answer might shock you. But how much protein to gain muscle depends on more than just the amount of protein you consume. Is there such a thing as too much protein? 

Let’s dive into the latest scientific insights to help you make informed decisions about how much protein you actually need in order to gain the muscle you want to see. 

Protein requirements defined

Man flexing back muscles
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The current recommended daily allowance (RDA) established by health experts is 0.8 grams of protein per kilogram of body weight. As a baseline for the general population, this guideline ensures adequate protein consumption.

It’s important to note, however, that individual protein requirements may differ depending on factors like activity level, age, and fitness goals.

Endurance athletes, for example, typically have higher protein requirements due to the prolonged and intense nature of their physical activities. The recommended daily protein intake for endurance athletes is between 1.2 and 2 grams per kilogram of body weight.

Debunking the misconception that more protein equals more muscle

Muscle growth and repair require protein, but it is a common misconception that more protein automatically translates to more muscle. Several elements contribute to building muscle, including training intensity, diet quality, genetics, lifestyle factors, and age. 

Experts emphasize a balanced diet rich in carbohydrates, healthy fats, vitamins, and minerals for muscle growth and athletic performance. Instead of being the sole determinant of muscle gain, protein should be considered part of a comprehensive nutritional strategy.

Balancing protein requirements

Cooked chicken in oven dish with chopped onions, herbs, and lemon.
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There are many reasons why you should strive to achieve balance in your diet. It can improve heart health, strengthen the immune system, and provide the nutrients needed for optimal organ, bone, and muscle function.

A balanced macronutrient intake can support weight management and give your body a sustainable fuel source to build muscle mass.

Consuming the right ratios of each macronutrient ensures your body has the resources it needs to function properly, repair tissues, and build muscle mass over time so that you can see the muscle gain you are looking for.

Here are a few more reasons why you may want to start tracking your macros: 

  • Proper regulation of energy levels to allow for muscle gain, as energy is required for workouts, recovery, and muscle repair. 
  • It makes it easier to maintain stable energy levels throughout the day, and you may see an increased performance during workouts, ultimately resulting in more muscle growth. 
  • Adequate protein intake, essential for muscle repair and growth, supports the development of lean muscle mass. 

Without enough protein in your diet, you may impede muscle growth and repair, hindering the development of lean muscle mass. Inadequate protein intake can result in a weakened immune system, edema due to fluid imbalance, brittle hair and nails, and muscle loss.

Good sources of protein

Lean meats like chicken and fish, as well as beans, lentils, tofu, and nuts, are all good sources of protein. You can support your body by consuming a variety of high-quality protein sources in your diet.

To pump up your protein levels, don’t forget to include high-protein snacks in your daily diet. Think Greek yogurt, nuts, hard-boiled eggs, or protein bars for a quick and satisfying protein fix between meals. 

What the research says about protein intake and muscle mass

Bowl of cooked quinoa and vegetables
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In numerous studies, protein intake has been directly correlated with muscle mass increase, emphasizing the importance of protein in muscle growth.

As a result, meta-analyses have demonstrated that protein supplementation increases muscle strength significantly when combined with resistance training. These studies examine the relationship between protein consumption, intensity of resistance training, and muscle growth.

Protein supplementation alone is not sufficient to improve muscle strength, with resistance training acting as a catalyst for maximizing the benefits.

However, insufficient protein intake poses risks to muscle health and overall well-being. This underscores the importance of meeting protein requirements, especially in individuals engaging in resistance training, to support muscle health and optimize gains. 

Additionally, inadequate protein intake can lead to compromised muscle strength and overall physical performance, underscoring the critical role of protein in sustaining muscle function.

As you know, protein alone won’t automatically transform you into a bodybuilder. Other factors like training intensity, nutrition quality, genetics, and age also play crucial roles. The real secret lies in striking the right balance across all these elements.

Rather than obsessing over mega-doses of protein powder, focus on getting high-quality protein from whole food sources like lean meats, eggs, dairy, legumes, and seafood. Pair these with healthy carbs and fats to create meals and snacks that energize your workouts and support muscle growth.

Brittney Bertagna, RN
Brittney is a graduate of California State University, Chico, where she completed a Bachelor's degree in Business. Her…
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