Which Protein Powder is the Best for Muscle Gain

Which Protein Powder is the Best for Muscle Gain ? The 5 Best Options

An effective weight loss or muscle gain regimen requires consistent exercise and healthy nutrition. One without the other rarely yields the desired results.

So, if you’ve already got the workout part of your regimen set up and ready, it’s time to explore the best products for the nutritional side of your regimen.

Wondering which protein powder is the best for muscle gain/weight loss? Here are 5 of the best protein supplements you can find online!

1. Best for General Consumption: RSP TrueFit – Protein Powder Meal Replacement Shake

While calorie deficiency is important for weight loss, it shouldn’t come at the expense of good nutrition. That’s why RSP TrueFit made a meal replacement powder with grass-fed protein, probiotics, 12 non-GMO fruits and vegetables, and healthy fats.

The 25 grams of grass-fed protein make this an excellent post-workout drink. If you’re prone to delayed onset muscle soreness, it won’t take these high-quality proteins long to repair your body.

The 8 grams of prebiotic fibers and 1 billion CFU probiotics also expedite weight loss. These aid your metabolism in efficiently breaking down food and nutrients.

Speaking of nutrients, the protein shake also has a blend of 12 superfoods including non-GMO fruits and vegetables. These provide vitamins and minerals for a complete nutrition package.


  • Grass-fed protein sources are the best way to maintain muscle and increase muscle mass while decreasing the numbers on the scale.
  • Probiotics and prebiotic fibers increase metabolism, promoting weight loss.
  • It strengthens the immune system with a rich blend of superfoods.
  • There are no added sugars or artificial sweeteners.
  • For such a well-balanced mix of ingredients, it’s relatively inexpensive.


  • Flavors are pretty limited.


2. Best for Muscle Gain: Naked Mass – Natural Weight Gainer Protein Powder

Sometimes, unfamiliar ingredients are a catalyst for allergies and skin issues. That’s why Naked Mass developed this simple, high-quality protein powder.

It has only the most basic ingredients: Organic Tapioca Maltodextrin, Whey Protein Concentrate, and Micellar Casein. This stripped-down formula includes concentrated, easy-to-digest proteins and carbohydrates.

Therefore, it quickly reinvigorates muscles and restores energy lost during intense workouts. Furthermore, organic tapioca maltodextrin prevents glycogen depletion as it’s a great source of clean complex carbohydrates. This keeps you energized throughout your workouts.


  • Simple, effective ingredients accelerate absorption.
  • Non-GMO organic tapioca is a healthier complex carbohydrate than corn-based alternatives.
  • The unflavored version is the perfect canvas for nutritious fruits.


  • Organic tapioca maltodextrin may negatively affect gut health.
  • The 1250 calories per serving is high.


3. Best for Promoting Skin Health While Toning Your Muscles: Total Activation Lactose-Free Whey Protein Isolate

There are plenty of protein products out there, but few are options for lactose-intolerant people. This is a great lactose-free option for people who want to avoid bloating and gassiness.

The extra antioxidants promote healthy skin, bone health, and lean muscle build-up. These antioxidants come from monk fruit and sunflower lecithin that stimulates glutathione.

This is the perfect supplement for those who struggle with inflammation and skin issues. Sunflower lecithin is also an excellent source of selenium, which is known to improve the immune system.


  • It mixes easily without a blender.
  • Benefits extend beyond an enhanced physique; it also promotes healthy bones and skin.


  • While it’s lactose-free, there’s still a chance it may cause allergic reactions.
  • It does not come in bigger packages.


4. Best for Women: FoxyFit Protein for Her

For some people, simply increasing protein intake isn’t enough. That’s why FoxyFit added fat-burning Conjugated Linoleic Acid (CLA) to their protein. CLA also reduces appetite and fat production.

FoxyFit incorporates biotin in its protein to improve hair, nail, and skin health. The whey protein, of course, targets muscle building and recovery. It works well as a post-workout recovery drink or a meal replacement shake.

It tones muscles, reduces fat, and promotes the health of the human integumentary system. For women who want a toned physique and healthy glow, FoxyFit checks all the boxes.


  • It’s a protein supplement targeted for women with benefits that women want.
  • The combination of CLA and whey protein make for a potent physique-building supplement.
  • Biotin content is a huge plus for women.


  • It’s not suitable for women who are pregnant or breastfeeding or for people with serious medical conditions.
  • It has artificial flavor.
  • Only comes in caramel mocha and chocolate flavors.


5. Best for Vegetarians and Vegans: KOS Organic Plant-Based Protein Powder

KOS Organic Plant-Based Protein Powder uses Peruvian cacao, Himalayan salt, and organic coconut milk to help boost flavor and nutritional value.

The award-winning Peruvian cacao was named the most desirable chocolate on the planet in 2019. The cacao brings incredible flavor to the protein and provides antioxidants, magnesium, and iron. Plus, it’s even more calcium-dense than milk.

Since KOS uses plant-based protein derived from pea, flaxseed, quinoa, pumpkin seed, and chia seed, this is one of the few non-whey, protein-based supplements on the market.


  • It uses sustainable, plant-based protein sources.
  • With every purchase of the protein powder, KOS donates a meal to someone in need.
  • Award-winning Peruvian cacao is appealing to dark chocolate lovers.
  • Considering you’d have to pay a premium for a Peruvian cacao-based drink in cafes and restaurants, this protein powder is relatively inexpensive.


  • It makes some people bloated and gassy.
  • The dark chocolate flavor is an acquired taste.


Which Protein Powder is the Best for Muscle Gain/Weight Loss?

As sports nutrition science advances, we’re learning that protein powder has a wider range of applications than simply building muscle mass for bodybuilders.

Next, we’re going to explore important aspects to consider when choosing a protein powder.

As with any endeavor, you first need set goals and make a plan. From there, you can choose which protein supplement is best for your goals.

Types of Protein


Most protein supplements on the market use whey protein because it contains a complete range of amino acids needed for stimulating muscle gain and weight loss.

It’s also a fast-release protein, meaning it is absorbed quickly upon reaching the gut. This makes it the perfect post-workout recovery drink because it immediately aids in muscle repair.

Whey protein is also satisfying, making it a great meal replacement shake as long as the calorie content isn’t too high.


On the other hand, casein is a type of protein absorbed at a much slower rate than whey. It’s ideal for long-term muscle repair.

The slow absorption rate also makes it an excellent stimulant for muscle growth. Bodybuilders, therefore, tend to prefer casein protein over whey.


Did you know that collagen is the most abundant protein in the body? However, it doesn’t have much effect on weight loss or muscle gain.

Collagen supplements help build connective tissues like tendons and ligaments. Most users of collagen protein supplements, therefore, are interested in improving joint mobility.

There is also some evidence that collagen helps in improving skin health and elasticity.

Protein Processing Method

Proteins are processed in different ways. Depending on whether you’re trying to lose weight or gain muscle mass, choose the protein processing method that best suits your goals.


This is the least labor-intensive and most common processing method. The process involves extracting protein via heat or enzymatic extraction.

The resulting compound is between 35% and 85% in protein concentration. The rest comes down to carbohydrates and fats.


Isolates, on the other hand, go through another layer of filtration. This takes the carbohydrates and fats out of the equation to further reduce the calories for each serving. In essence, isolates are more concentrated forms of proteins that are especially beneficial for weight loss.

Frequently Asked Questions

Do protein powders have unwanted side-effects?

Bloating and gas are common issues with protein powder. However, there is usually no way to tell whether a particular brand will create issues for you without trying it out first. If you’re lactose intolerant, it’s best to opt for lactose-free products.

Introducing new ingredients to your body always comes with a risk of allergic reaction. Be sure to read labels for unfamiliar ingredients or ones you know irritate your system.

When is the best time to consume protein shakes or smoothies?

The best timing depends on your goals. For example, you may want to take protein powders derived from casein before going to sleep to make muscle build-up more efficient.

Heavy calorie protein powders, on the other hand, can be taken right before your scheduled workout so you have fuel to burn. Alternatively, you can drink a post-workout protein shake to aid in muscle regeneration.

Some protein powders, especially those that are derived from whey, are developed primarily as meal replacements. Whey especially satisfies your appetite and helps you consume fewer calories throughout the day.

Best Brands

RSP Nutrition

As seen in their TrueFit meal replacement powder, RSP Nutrition prioritizes a balanced approach. All of their products have a well-rounded array of ingredients for improving fitness as well as overall health.

Naked Nutrition

Simplicity is key for the Naked Nutrition brand. They focus on basic, high-quality components, so many of their products only have three ingredients.

Total Activation

Unlike the other brands on this list, Total Activation is in the skincare industry and is not a fitness brand. Their protein isolate ensures that customers don’t compromise on skin health as they pursue a better physique.


FoxyFit is one of the few sports supplement and nutrition brands specifically for women. Their product line includes important nutrients for hair growth, skin glow, and other benefits.


Vegetarians, vegans, and other consumers that don’t want to consume animal-based products find it difficult to find high-quality protein powder. KOS is one of the few, sustainable brands that cater to this desire.


There are a lot of variables to consider when choosing a protein powder, from the protein type to the method of extraction.

If you want to gain muscle, choose a protein supplement that has both fast-acting whey for muscle recovery and time-release casein for muscle growth. If you wish to lose weight, pick fat-reducing ingredients like CLA or metabolism-enhancing enzymes.

Looking for muscle gains? Go with Naked Mass. It fuels your workouts and helps muscle recovery and growth with whey and casein proteins. On the other hand, if you want an everyday protein and health supplement, choose RSP Nutrition.

What’s your favorite type of protein powder? Let us know in the comments!

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