Best Soy Free Protein Powders – Which is Best for you?

We tested over 30 products and found Transparent Labs Whey Protein to be the best soy free protein powder on the market. 

Transparent Labs focuses on products that can support and respond to various nutritional needs and restrictions. We’ve done extensive research on the brand and concluded that it provides the best nutrition across the board. 

This 100% Grass-Fed Whey Protein Isolate checks all the nutritional boxes when it comes to soy-free protein powders. You won’t find any artificial flavors, dyes, or preservatives – just clean, whole protein.

But, if you’re looking for more specific guidance on your protein powders, we have a complete breakdown of the best soy free protein powders on the market right now. We’ll explore different categories like the best Keto or vegan diet, best allergen-friendly, and more. 

Read on to find the best soy free protein powder for your lifestyle today.



Best Soy Free Protein Powders Reviewed

Whether you want to lose weight, gain muscle, or simply supplement your protein intake, soy free protein powders can be an excellent solution. We’ll walk you through the nutritional facts of each of our picks and recommend the best based on your particular preferences. Let’s get started.


Best Overall – Transparent Labs 100% Grass-Fed Whey Protein Isolate

This protein powder is excellent for pretty much anyone. The powder contains whey protein produced by grass-fed cows, farmed right here in America. You get the maximum nutritional benefits without added hormones, steroids, or damaging environmental practices. And, of course, it tastes great.

With a protein-by-weight ratio of 88%, this powder is one of the best in the industry for protein content. We recommend consuming it as a protein shake immediately after a workout if you aim to increase lean muscle mass. 

You can also use this protein powder to support a weight-loss routine. Drink a serving within 30 minutes of waking up in the morning to help jump-start your metabolism. Use this protein powder alongside regular nutritious meals for best results.

Flavors: 

  • Strawberry, Milk Chocolate, Chocolate Peanut Butter, Vanilla, Salted Caramel, Cereal Splash, Cinnamon Pastry

Type of protein:

  • Whey Protein

Key Features:

  • 28 grams of protein per 32-gram scoop
  • No artificial coloring
  • No artificial sweeteners
  • Gluten-Free & Non-GMO
  • No artificial preservatives

Macros (per 32g scoop):

  • Calories: 120
  • Fat: 0 grams
  • Carbs: 1 gram
  • Protein: 28 grams

Pros

  • High in clean protein
  • Great flavors
  • Good texture, not chalky
  • Quality tested

Cons

  • International shipping may take 10-14 days
  • Not best if you prefer unflavored
  • More expensive than other options
Buy on Transparent Labs

Best Casein – ProMix 100% Casein Protein Powder

Casein is an excellent protein source for slow absorption and long-term benefits. ProMix’s 100% casein protein powder is one of the best on the market. They use locally sourced farms to ensure their casein comes from hormone-free and antibiotic-free milk. Their testing standards live up to our expectations, and they have good clean products.

This particular powder is ideal for the slow overnight release of amino acids for better recovery and muscle growth as you sleep. 

Flavors: 

  • Unflavored

Type of protein:

  • Casein protein

Key Features:

  • Slow-digesting protein, ideal before bed 
  • Full-spectrum casein proteins
  • Third-party independent testing
  • No artificial sweeteners, additives, preservatives, colors, or flavors
  • Gluten-Free & Non-GMO
  • USA GMP certified

Macros (per 29 grams):

  • Calories: 105
  • Fat: 0 grams
  • Carbs: 0 grams
  • Protein: 25 grams

Pros

  • Long-lasting amino acid absorption
  • High-quality testing standards
  • Pasture-based dairy source
  • Easy to mix into smoothies, drinks, or even baked goods

Cons

  • It has a thicker consistency than some powders when mixed
  • More expensive than some options on this list
Buy on Amazon

Best Unflavored – NAKED WHEY Unflavored Whey Protein Powder

For a clean, unflavored option, we love NAKED Nutrition’s NAKED WHEY protein powder. While it has a tiny bit more sugar and carbs than the previous two options, this product has a nutritious, safe ingredient list.  

Sourced from family farms in California, the whey comes from grass-fed cows with no added hormones or steroids. The powder packs a good amount of amino acids, glutathione, and clean protein.

Flavors: 

  • Unflavored

Type of protein:

  • Whey protein

Key Features:

  • High in amino acids and glutathione
  • Sourced from pasture-raised cows on family farms in California
  • Cold processed to eliminate any chemical contamination
  • No artificial sweeteners, additives, preservatives, colors, or flavors
  • Gluten-Free & Non-GMO

Macros (per 30 grams):

  • Calories: 120
  • Fat: 2 grams
  • Carbs: 3 grams
  • Protein: 25 grams

Pros

  • Only one ingredient makes this one of the cleanest proteins
  • Gluten-free
  • Pasture-raised cows
  • Truly flavorless, so combines well with anything

Cons

  • A little pricey
  • Sometimes difficult to mix
Buy on Amazon

Best For All Natural / Paleo – Ora Organic Vegan Protein Powder

Ora Organic has an amazing vegan protein powder if you’re looking for an organic or paleo diet option. It does the work of dairy-based proteins without the animal products involved. You can choose from a variety of taste options, as well.

With 21 grams of protein per serving, Ora Organic packs in dozens of micronutrients because of its plant-based sourcing. The ingredients list includes superfoods like organic apple, blueberries, broccoli, kale, and turmeric to boost overall nutrition. 

It’s free from contaminants, easy on digestion, and even safe for kids, pregnant women, and breastfeeding moms.

Flavors: 

  • Chocolate
  • Vanilla
  • Vanilla Chai

Type of protein:

  • Pea protein
  • Rice protein
  • Hemp protein

Key Features:

  • It contains all essential amino acids
  • Two total servings of daily greens
  • Vegan and cruelty-free
  • USDA certified organic farms
  • No artificial ingredients
  • Dairy-free, Gluten-Free & Non-GMO
  • Tested for heavy metals

Macros (per 30 grams):

  • Calories: 120
  • Fat: 2.5 grams
  • Carbs: 4 grams
  • Protein: 21 grams

Pros

  • 100% certified organic and vegan
  • Good for sensitive stomachs
  • Includes several superfoods to support holistic nutrition

Cons

  • It has a strong taste, so it might need to be mixed with other flavors
Buy on Amazon

Best For Muscle Building – Vega Sport Premium Protein Powder

Vega Sport’s premium protein powder combines the benefits of plant-based protein with remarkable long-term muscle growth. It’s NSF Certified for Sport, ideal for athletes, and a great keto-friendly option without any added dairy.

Vega’s product is one of the best powders if you’re looking for a plant-based powder packed with protein. The proteins include your nine essential amino acids. The powder also contains recovery-supporting ingredients like tart cherry and turmeric, as well as probiotics.

Flavors: 

  • Chocolate

Type of protein:

  • Pea protein
  • Pumpkin seed
  • Organic sunflower seed
  • Alfalfa protein

Key Features:

  • No added sugar
  • Certified vegan
  • NSF certified for sport
  • Non-GMO certified
  • Gluten-free
  • No artificial flavors or preservatives

Macros (per 44 grams):

  • Calories: 160
  • Fat: 3 grams
  • Carbs: 6 grams
  • Protein: 30 grams

Pros

  • Plant-based solution for muscle growth and recovery
  • Added probiotics and recovery nutrients
  • Excellent for athletes
  • Great amount of protein per serving

Cons

  • Somewhat chalky consistency
  • The chocolate flavor is very sweet
Buy on Amazon

Best For Allergen Friendly – OWYN Vegan Protein Powder

For people with allergy concerns, OWYN is the way to go. They produce their protein powders in allergen-safe facilities, so not only are you safe from dairy and gluten, but also eggs, peanuts, tree nuts, fish, and shellfish. 

With all these allergens out of the way, OWYN still created a protein-packed powder with many nutritional benefits. This powder provides nearly half of your daily Omega-3 needs, all nine essential amino acids, probiotics, and superfood greens blend. Here’s the breakdown:

Flavors: 

  • Chocolate
  • Vanilla

Type of protein:

  • Pea protein
  • Pumpkin protein
  • Chia protein

Key Features:

  • Allergen-friendly
  • Keto-friendly
  • Certified Vegan
  • Gluten-free & Non-GMO
  • No artificial ingredients

Macros (per 34 grams):

  • Calories: 140
  • Fat: 3 grams
  • Carbs: 7 grams
  • Protein: 20 grams

Pros

  • Allergy-safe
  • Packed with protein and added nutrients
  • High in Omega-3’s
  • Affordable

Cons

  • The probiotics may cause unpleasant digestive symptoms
  • Packaging is much larger than contents inside
Buy on Amazon

Best For Keto – Perfect Keto Pure Whey Protein Powder

This protein powder by Perfect Keto checks a lot of boxes. It’s ideal for Keto and can be used as a meal replacement shake and commits to clean ingredients. 

The powder boasts many nutrients, including amino acids and medium-chain triglycerides (MCTs) that help promote weight loss. Your body can rapidly absorb these nutrients, transforming them into muscle growth and recovery and helping satiate your appetite for hours. 

This protein powder is excellent post-workout or first thing in the morning as a substitute for breakfast.

Flavors: 

  • Chocolate
  • Vanilla

Type of protein:

  • Whey protein

Key Features:

  • High-quality ingredients
  • Grass-fed whey
  • Keto-friendly
  • Fast-absorbing
  • No artificial ingredients

Macros (per 25.5 grams):

  • Calories: 110
  • Fat: 4 grams
  • Carbs: 3 grams
  • Protein: 15 grams

Pros

  • Excellent keto option
  • Good taste
  • Builds muscle and boosts satiety

Cons

  • It can be tough on digestion
  • The chocolate flavor is not strong
Buy on Amazon

Best For Weight Loss – Quest Nutrition Whey Protein Powder

Quest Nutrition’s chocolate milkshake tastes like a sugary dessert but works great for weight loss plans. With a proprietary blend of both fast- and slow absorbing proteins, their protein powder helps build lean muscle and extend your feeling of being full.

The protein is made with complete dairy-based proteins but contains minimal carbs or sugars. You can use the powder to make shakes or add it to your favorite baked recipes. 

Flavors: 

  • Chocolate
  • Peanut Butter
  • Vanilla Milkshake

Type of protein:

  • Whey protein
  • Micellar casein

Key Features:

  • High in protein but low in carbs and sugar
  • Both fast and slow absorbing proteins
  • Gluten-free

Macros (per 30 grams):

  • Calories: 110
  • Fat: 1 gram
  • Carbs: 3 grams
  • Protein: 22 grams

Pros

  • High protein content for very low fat and calories
  • Less than one gram of sugar
  • Tastes great when mixed into foods

Cons

  • Contains artificial sweeteners
  • Not guaranteed to be grass-fed whey
Buy on Amazon

Best For Vegan – KOS Organic Plant-Based Protein Powder

KOS is committed to sustainable, healthy products that minimally impact the environment. This vegan protein powder contains a proprietary blend of plant-based proteins and other nutrients. It’s also easy on digestion and is great for sensitive stomachs.

With a blend of chia seeds, pumpkin seeds, flax, and quinoa, you’ll get great fiber, antioxidants, omega-3 fatty acids, magnesium, and tons of vitamins. 

Along with the great nutrition, you can rest easy knowing that KOS is also a Founding Member of SeaLegacy’s Good Ocean – committed to sustainable practices. They also partner with Feeding America to help feed America’s homeless.

Flavors: 

  • Chocolate Peanut Butter

Type of protein:

  • Organic chia seed
  • Organic quinoa
  • Organic pea protein
  • Organic pumpkin seed
  • Organic flax seed

Key Features:

  • Certified organic
  • Sustainable practices
  • Blend of plant-based proteins
  • Digestive enzyme blend for digestive health

Macros (per 39 grams):

  • Calories: 160
  • Fat: 6 grams
  • Carbs: 8 grams
  • Protein: 20 grams

Pros

  • Holistic nutrition focused on digestive health
  • Additional antioxidants and vitamins
  • Sustainable
  • Affordable

Cons

  • Strong Stevia flavor
  • Somewhat chalky residue
Buy on Amazon

Best For Protein Blend – Vital Performance Protein Powder

Vital Performance provides a unique blend of lactose-free, complex proteins. Typically when we’re talking lactose-free, we lose some of the benefits natural to the proteins. But Vital Performance’s processing reduces lactose content while keeping the benefits of dairy proteins. 

Their blend is also high in collagen, which absorbs quickly into the body and supports overall skin, bone, and tendon health. Vital Performance’s protein is sourced from grass-fed, pasture-raised cows and has an 80% casein and 20% whey blend for both fast and slow absorption.

Flavors: 

  • Chocolate
  • Coffee
  • Strawberry
  • Vanilla

Type of protein:

  • Milk protein isolate
  • Collagen peptides

Key Features:

  • Made with bovine collagen peptides
  • Grass-fed, pasture-raised dairy
  • Lactose-free 
  • Gluten-free
  • NSF Certified for Sport

Macros (per 36 grams):

  • Calories: 130
  • Sugars: 5 grams
  • Carbs: 6 grams
  • Protein: 25 grams

Pros

  • High-quality holistic protein blend
  • Collagen boosts bone and muscle health
  • Great for any time use

Cons

  • The coffee flavor didn’t taste much like coffee
  • While it is technically lactose-free, some lactose-intolerant people may react
Buy on Amazon

Best For Meal Replacement – RSP TrueFit Protein Powder Meal Replacement Shake

If you want a genuine meal replacement shake without the soy, RSP has a great option. This protein powder combines 100% grass-fed whey protein with organic fruits and vegetables and critical probiotics. The blend makes it great for any meal replacement plan.

The protein content provides all you need for muscle building and recovery while also promoting gut health. You’ll get significant doses of healthy fats and fibers as well and stay full longer. 

They source their fully organic products from right here in the United States.

Flavors: 

  • Chocolate
  • Cinnamon Churro
  • Vanilla

Type of protein:

  • Whey protein

Key Features:

  • Grass-fed whey protein
  • Prebiotics and probiotics
  • Gluten-free & Non-GMO
  • Organic
  • No artificial ingredients

Macros (per 49 grams):

  • Calories: 170
  • Fat: 3.5 grams
  • Carbs: 14 grams
  • Protein: 25 grams

Pros

  • True meal replacement solution
  • Includes needed fiber and vitamins from fruits and vegetables
  • Great for gut health

Cons

  • A potent taste of alternative sweetener
  • Not suitable for weight loss
Buy on Amazon

Buying Guide

With this roundup, you should have a pretty good idea of where to start with your next protein powder. But let’s go over some of the most important things to look for when buying the best soy free protein powder for you.


Should I Go Soy Free?

While soy is a popular ingredient in protein powders, a lot of us prefer to avoid it. 

Soy comes from soybeans, a protein-rich legume that has several health benefits. Soybeans provide vitamins, minerals, fiber, and beneficial plant fats. 

However, soy is a pretty controversial subject in the foodie world. Some people claim that it has detrimental health effects like hurting thyroid function, increasing cancer risk, or reducing testosterone in men.

None of these adverse effects have strong scientific data behind them. However, you may want to avoid soy for a couple of other reasons:

  • Some people aren’t allergic to soy but find that soy gives them stomach cramps, headaches, or other uncomfortable reactions.

If you find soy makes you feel sick – or you just don’t feel great about consuming it – going soy free is an easy solution.



How Much Protein Do You Need?

Proteins are the building blocks of our bodies. We need protein every day for our bodies to grow, recover, and function properly.

The Recommended Dietary Amount (RDA) for protein is to consume 0.36 grams of protein per pound of body weight, or 0.8 grams per kilogram of body weight. RDA is the minimum amount you need for healthy function. 

So, let’s say we have a sedentary adult male who weighs 175 pounds. At a minimum, he should be consuming about 63 grams of protein per day.

If you have a highly active lifestyle or are aiming to build muscle, you’ll want to consume higher amounts of protein.

Here are a few guidelines:

  • If you aim to lose weight, experts recommend consuming protein as 30% of your calorie intake.
  • If you aim to build muscle, experts recommend consuming around 1 gram of protein per pound of body weight.
  • If you’re recovering from an injury, or have a highly active lifestyle, aim for around 0.5-0.75 grams of protein per pound.

The important thing is to know your body and your health needs. If you’re concerned about consuming too much or too little protein, make an appointment to discuss it with your doctor or a nutritionist. 


Benefits Of Protein Powder

So, is protein powder all it’s cracked up to be?

In many cases, yes. Protein powder can be an excellent way to supplement whole food proteins in your diet. Protein powder is especially useful in a few different scenarios:

  • You’re growing or building muscle.
  • You’re starting a new workout program or increasing your workout regimen.
  • You’re transitioning to a vegan diet.
  • You’re recovering from an injury.

In each of these scenarios, it’s essential to get enough protein to support your body’s growth and recovery. Here are a few of the benefits:

  • Athletic Benefits: Protein powders are proven to help build and preserve muscle and improve athletic performance. Make sure that you are doing safe, consistent workouts and getting enough carbs in your diet, too.
  • Weight Loss Benefits: Studies have shown that protein powders can power up your weight loss. Protein boosts your metabolism and helps you feel full longer. Protein powders are ideal for weight loss because they are typically very low in fats and sugars. 
  • Nutritional Benefits: Getting the right amount of protein can be challenging. Protein powders make it a lot easier by packing in a ton of protein per scoop. As we’ve seen with many products on our list, some powders even include added nutritional benefits like doses of fruits, vegetables, and probiotics. 

In the end, anyone who is aiming to get more protein into their diet can benefit from using protein powders.


Take-Away

Are you looking for the best soy free protein powder on the market? With this roundup, you’ll find a number of the best brands and products out there – with an array of nutritional benefits packed into each scoop.

If you want to start with the best, we recommend the Transparent Labs 100% Grass-Fed Whey Protein Powder. It’s clean, safe, and packed with nutrients. 

And if you’re looking for more options, you can browse for more Transparent Labs products here

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