Understanding protein has been growing in popularity in recent years. High-protein snacks, protein shakes, and social media influencers have fueled a growing interest in adding more protein to everyday diets.
While I appreciate the increased awareness of nutrition, I also think it’s important to separate marketing trends from science. Protein certainly plays an essential role in overall health, but you should view it as one part of a balanced diet rather than a magic solution.
In this post, we’ll break down the key aspects of understanding protein, why it’s important, how much you actually need, and why your protein intake may change depending on your goals.
What is Protein?
Protein is one of the three primary macronutrients your body needs to function, alongside carbohydrates and fats. Unlike vitamins and minerals, macronutrients provide energy while also supporting many of the body’s essential processes.
Protein contains smaller molecules called amino acids, often known as the building blocks of life. These amino acids build and repair tissues, produce enzymes and hormones, support immune function, and help maintain healthy muscles, skin, hair, and organs.
Complete vs. Incomplete Proteins
Understanding protein means learning that not all protein sources are the same. Protein sources are divided into two categories: complete protein and incomplete protein. Complete proteins contain all nine essential amino acids that your body cannot produce on its own. These are typically found in animal-based foods such as:
- Lean meat
- Poultry
- Fish
- Eggs
- Dairy products
Plant-based foods like soy, quinoa, and buckwheat contain all nine essential amino acids, making them complete proteins
Incomplete proteins are missing one or more essential amino acids. So you need to eat various sources to make sure you are getting all the essential amino acids. Many plant foods fall into this category, including beans, lentils, nuts, seeds, and whole grains. Fortunately, eating a variety of plant-based protein sources throughout the day provides your body with all of the amino acids it needs. Contrary to older beliefs, these foods do not have to be eaten together in the same meal.
How Much Protein Do You Need?
The amount of protein you need depends on your age, activity level, health status, and goals.
The current FDA Daily Value for protein is 50 grams per day (based on a 2,000-calorie diet). The FDA developed this recommendation to meet the basic nutritional needs of the average healthy adult and help prevent protein deficiency.
However, this isn’t necessarily the ideal amount for everyone. Individuals who exercise regularly, participate in endurance sports, strength train, or are trying to build or preserve muscle often benefit from consuming more protein than the minimum recommendation.
Instead of asking, “What’s the minimum amount I need?” it can be more helpful to ask, “What’s the optimal amount for my lifestyle and goals?”
Why Understanding Protein Matters for Muscle Growth
When people think about protein, muscle building is usually the first thing that comes to mind.
Protein is the primary macronutrient responsible for muscle growth, repair, and recovery. Every time you participate in resistance training or other challenging exercise, your muscle fibers experience microscopic damage. While that may sound concerning, it’s actually a normal part of the muscle-building process.
After your workout, your body begins repairing those damaged muscle fibers. During this recovery process, the fibers rebuild stronger than before, allowing muscles to grow over time. This process, known as muscle hypertrophy, depends on two key factors: progressive resistance training and adequate protein intake. If you want to get into the nitty gritty of muscle growth, check out my previous post here.
Without enough protein, your body has fewer amino acids available to repair and build new muscle tissue. As a result, your body may recover more slower, build less muscle, and struggle to maintain existing muscle.
Understanding Protein for Muscle Growth
If your goal is to build muscle, simply lifting weights isn’t often enough. Your body also needs the nutrients required to support recovery and growth.
Research consistently shows that people who strength train benefit from higher protein intake than the general population. Consuming enough protein throughout the day helps maximize muscle protein synthesis, the process your body uses to repair and build muscle tissue.
Increasing your protein intake doesn’t mean eating excessive amounts at every meal. Instead, aim to include a quality protein source with each meal and snack. Spreading your protein intake evenly throughout the day appears to be more beneficial than consuming the majority of it in one sitting.
Understanding Protein Supplements
With understanding protein and the growing popularity of high-protein diets, protein supplements have become more widely available than ever. Walk into any grocery store or nutrition shop, and you’ll find everything from protein powders and ready-to-drink shakes to protein bars and even protein-fortified foods. While these products can be a convenient way to increase your daily protein intake, it’s important to remember that they are supplements, not necessities. Whole food protein sources should remain the foundation of a healthy diet whenever possible because they provide additional nutrients like vitamins, minerals, healthy fats, and fiber.
There are several common types of protein supplements, each with its own advantages.
Whey Protein
Whey protein is one of the most popular choices because it is a complete protein, digests quickly, and is rich in the amino acid leucine, which plays a key role in stimulating muscle protein synthesis. This makes whey a convenient option after exercise when the body is beginning the recovery process.
Casein Protein
Casein protein, another dairy-derived protein, is digested much more slowly than whey. Its gradual release of amino acids makes it a popular choice between meals or before bed to help support muscle repair over several hours.
Plant Based & Alternative Proteins
For those following a vegetarian or vegan diet, plant-based protein powders are widely available. Common sources include pea, soy, brown rice, hemp, pumpkin seed, and blends of multiple plant proteins. While some plant proteins are incomplete on their own, many modern protein blends combine complementary sources to provide all nine essential amino acids, creating a complete protein profile.
There are also specialty proteins, such as collagen protein, which has gained popularity for supporting skin, hair, nails, joints, and connective tissue. Although collagen offers unique health benefits, it is not considered a complete protein and should not be relied upon as a primary source for muscle growth or recovery.
Getting Creative with Supplemental Protein
People often don’t like supplementing with a protein powder because they don’t like the texture or aftertaste, totally understandable! Although protein is important, you definitely don’t need to be miserable chugging chalk water to meet your goals.
Recently, I have been obsessed with protein ice cream. It’s summer, it’s hot and I recently purchased a Ninja Creami. So it’s safe to say that is my current way to get some extra protein, and a sweet treat! My current recipe goes a little something like this…
- frozen berries
- casein protein (I use a slow to digest protein since I usually eat this before bed)
- milk of your choice
- collagen powder (this acts as a natural binder, giving it a more creamy, ice cream texture)
- addition of pretzels are cereal afterward it is creamified for a crunchy element
Are you interested in learning more about how nutritien can help you reach your goals? Summit Strength and Fitness has nutrition coaches (myself being one of them) who are here to help!