How Much Protein Do You Really Need to Build Muscle?

In this feature on Honest Nutrition, we discuss the necessary amount of protein for building muscle mass, the top protein sources, and potential risks to keep in mind.

How much protein should you eat to build muscle?

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Protein is the superhero of nutrients. Found in every cell and tissue in the body, protein plays a crucial role in muscle growth, repair, and maintenance. But how much protein do you actually need to build muscle? And what are the best sources? Let’s dive into the details and separate fact from fiction! 🚀

Why is Protein Vital for Building Muscle?

Protein is made up of amino acids, which act as the building blocks for cells and tissues. While some amino acids can be made by the body, others must be obtained through diet. When you consume protein, it gets broken down into amino acids, fueling tissue growth, immune function, and energy production.

But here’s the catch: muscle proteins are constantly being broken down and rebuilt. To build muscle, you need to consume more protein than what is being broken down. This is known as a net positive nitrogen balance, as protein is rich in nitrogen. If you don’t get enough protein, your body will break down muscle to supply the necessary amino acids, leading to decreased muscle mass and strength over time. 😱

Plus, protein is essential for muscle protein synthesis (MPS), which is the primary driver of muscle repair, recovery, and growth after intense workouts. So, if you want to achieve those gains, protein is your best friend! 🤼

How Much Protein Do You Really Need?

The current recommended dietary allowance (RDA) for minimally active adults is 0.8 grams of protein per kilogram of body weight to prevent deficiency. But if you’re trying to build muscle, you might need more than that. According to the 2020-2025 Dietary Guidelines for Americans, most healthy adults should get between 10-35% of their daily calories from protein. One gram of protein provides 4 calories.

So, if you’re on a 2,000 calorie-per-day diet, you should aim to consume between 50 and 175 grams of protein daily. But remember, these are general recommendations. The ideal amount of daily protein varies depending on factors like age, gender, activity level, and overall health.

What Does the Research Say?

While there’s ongoing debate in the scientific community, several studies have shed some light on the optimal amount of protein for muscle building. A 2020 meta-analysis published in Nutrition Reviews found that protein intakes ranging from 0.5 to 3.5 grams per kilogram of body weight can support increases in lean body mass. In particular, researchers noted that gradually increasing protein intake, even by just 0.1 grams per kilogram of body weight per day, can help maintain or increase muscle mass.

Another meta-analysis published in Sports Medicine concluded that higher protein intakes of around 1.5 grams per kilogram of body weight daily, along with resistance training, are required for optimal effects on muscle strength. The benefits of increased protein intake appear to plateau at 1.5 to 1.6 grams per kilogram of body weight per day.

A systematic review and meta-analysis published in the Journal of Cachexia, Sarcopenia, and Muscle found that a protein intake of 1.6 grams per kilogram of body weight per day or higher leads to small increases in lean body mass in young, resistance-trained individuals. However, the effects on older individuals were less significant.

While exact figures may vary, the optimum protein intake for muscle building seems to fall between 1.2 and 1.6 grams per kilogram of body weight. For example, a 180-pound (81.8 kg) male would need to consume between 98 and 131 grams of protein daily, combined with resistance training, to support muscle growth.

The Best Protein Sources

Now that we know how much protein to aim for, let’s talk about the best sources. You can meet your daily protein needs by consuming both animal and plant-based protein sources.

Animal-based protein sources include lean meats, poultry, eggs, fish, seafood, dairy products, and whey protein powders.

Plant-based protein sources include beans, peas, nuts, lentils, seeds, soy products, and plant-based protein powders.

While some argue that animal protein sources are superior for building muscle due to their complete essential amino acid profile and high bioavailability, plant-based proteins can also provide all the necessary amino acids with the right combination of foods. For example, pairing rice and beans, hummus and pita bread, or peanut butter on whole wheat bread can ensure you’re getting a variety of amino acids.

Notably, soy is especially noteworthy as a plant-based protein source. It’s highly bioavailable, has a good profile of amino acids, and is easy to digest.

What About Protein Overconsumption?

Can you have too much of a good thing? Doctors generally agree that healthy adults can safely tolerate a long-term protein intake of up to 2 grams per kilogram of body weight per day without side effects. Some well-trained athletes may tolerate up to 3.5 grams per kilogram of body weight.

However, research suggests that consuming more than 2 grams of protein per kilogram of body weight per day can lead to health issues over time. Possible symptoms of excessive protein intake include intestinal discomfort, nausea, dehydration, fatigue, weight gain, and headaches. In severe cases, chronic protein overconsumption can contribute to heart disease, seizures, kidney and liver injuries, and even death.

Wrapping it Up

To build muscle, you need to consume the right amount of protein for your body and pair it with resistance training. Aim for between 1.2 and 1.6 grams of protein per kilogram of body weight to support muscle growth. Lean meats, fish, beans, nuts, and legumes are excellent protein sources to incorporate into your diet.

Remember, everyone is different, so it’s always a good idea to consult with a healthcare provider or registered dietitian to determine the amount of protein that’s suitable for you. Now, go get those gains! 💪👊

Q&A

Q: Can I get enough protein on a plant-based diet? A: Absolutely! While animal sources contain all the essential amino acids, plant-based proteins can be combined to provide the complete set of necessary amino acids. Soy, in particular, is an excellent plant-based protein source.

Q: Is it possible to build muscle without protein supplements? A: Absolutely! Protein supplements can be convenient, but they are not necessary for muscle building. Consuming a balanced diet with adequate protein from whole foods can provide all the nutrients you need to support muscle growth.

Q: What about protein timing? Should I have it immediately after a workout? A: The timing of protein intake is less important than meeting your overall daily protein goals. However, consuming protein within a few hours after a workout can aid in muscle repair and recovery.

Q: Can I build muscle without resistance training? A: Resistance training is essential for muscle building. Protein alone cannot stimulate muscle growth. Including exercises that challenge your muscles, such as weightlifting or bodyweight exercises, will help you achieve your muscle-building goals.

Q: Are there any negative effects of a high-protein diet on kidney function? A: Generally, a high-protein diet is safe for healthy individuals. However, individuals with pre-existing kidney conditions should consult with their healthcare provider before significantly increasing protein intake.

References

  1. Nutrition Reviews: Protein intake for optimal muscle function with resistance exercise: An updated systematic review and meta-analysis
  2. Sports Medicine: Role of Protein and Amino Acids in Promoting Lean Mass Accrual with Resistance Exercise and Attenuating Lean Mass Loss During Energy Deficit in Humans
  3. Journal of Cachexia, Sarcopenia and Muscle: Dietary protein leanness development and resistance training adaptations in men

Has this article pumped you up for building muscle? 🏋️‍♀️🔥 Then share it with your friends and spread the knowledge! And don’t forget to leave a comment below if you have any more questions or insights to share. Let’s support each other on this muscle-building journey! 💪😄✨