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Best Soy Protein Powder |EAS vs 6 Star| Vegan Bodybuilder Review ?

best soy protein powder review with a bowl of beans

Favorite Vegan Post Workout: EAS Soy Protein Powder, Vanilla
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best soy protein powder from ascvs($$$$)

EAS was my first and honestly best experience with a soy based protein. It is smooth & extremely affordable. I started taking this when I began bodybuilding in college. If you go down to the numbers, this supplement is cheaper than a protein dense whole foods meal. Plus it is:

  • lactose-free
  • gluten-free
  • low calorie
  • vegan
  • dairy-free
  • Animal-friendly 🙂



 A Vegans Plant Based Protein Powder Complete Buyers’ Guide

A soy protein powder is a supplement that makes use of the protein that is from soybeans. Soybean belongs to a leguminous family. It is rich in protein and vital amino acids that are excellent for muscle building & gaining mass.

  • Soybeans are mainly used as meal replacements for those individuals on a strict vegan diet.

Soy is often processed and stored as soy protein powders packs for easy availability and convenience. Most eas soy protein powders offer up to 20 grams of protein which is enough to supplement your protein intake.

Types of soy protein

Soy protein packs and sells in two forms; the soy protein concentrate and soy protein isolate.

Soy protein concentrate

This type of soy protein is manufactured when soy is defatted leaving the white substance in soy in its place. The white substance is then subjected to ethanol extract to neutralize its PH levels. The content is then solid to departments and distribution.

The soy concentrate has low levels of isoflavones because of its ethanol extraction. For this reason, soy concentrate is a smart choice for men worried about side effects of isoflavones.

Soy protein isolate

The soy isolate is produced from the white substance remained in the soybean after the defatting process. The concentrated protein is further processed through centrifugation which can extract the highest percentage of protein by weight.

Protein isolate contains high levels of isoflavones because the step of ethanol extraction is skipped during its preparation. Therefore, this is not the best choice of soy protein for men who worry about their semen quantity and quality.

How different is soy protein from whey protein?

Whey and soy protein are the most common two protein supplements mainly used by bodybuilders or those who intend to add some weight. Understanding the difference between these two types of protein will help you make a better decision when it comes to choosing which one to buy.

Whey is one of the dairy products of grass-fed cows. It is a by-product in the process of cheese making. Whey protein is important in maintaining the bone structure and putting on weight. A compound called leucine found in whey protein helps in muscle repair and recovery after intense training.

Is whey safe? Soy is a good lactose free protein powder option

Even though whey protein provides, you with the essential ingredients you need for muscle building. There are several concerns that the protein supplement contains toxins from copper that has been associated with several gastrointestinal conditions.

Whey is also a dairy product and will cause allergies to any individual that is lactose intolerant. The most common allergies include bloating, cramps, headaches, and general body weakness.

Which one should you buy whey or soy?

The best protein supplement for you will depend on your needs. Whey has been highly considered the best when it comes to muscle building, even though, soy is also equipped with enough protein to help maximize body building process.

  • Soy is a perfect choice for individuals with lactose intolerance or those willing to cut down on their animal products intake.

We recommend that you use soy and whey together when you want to see great bodybuilding results. This is because whey protein is rich in Branched Amino Acids (BCAAs) while soy protein is abundant in high levels of arginine an amino acid that stimulates muscle building. Glutamine is also found in soy; this amino acid facilitates fast muscle recovery and repair.

Here is what to look into before buying a protein supplement of your choice:

1. Dietary restrictions

People with lactose intolerance may not have a good time using whey protein because of the allergies associated with the protein. It is vital to exercise precaution when testing whey protein when you are prone to allergies.

2. Amino acid profile

Different protein supplements contain different amino acids. The levels of leucine, methionine, and lysine are more in whey protein than in soy protein. Soy protein contains more arginine and tryptophan amino acids.

3. Nutritional considerations

Several minerals play a role in muscle building and recovery. Some are vitamin B2 which also helps in the breakdown of protein. Zinc, on the other hand, is required for producing muscle-building testosterone. All protein powders are fortified with minerals and vitamins. It is, therefore, essential to have a look at the nutritional value at the pack before buying one.

4. Taste and texture

Taste and texture is a question of personal preference. Most soy protein powders are creamy and smooth while others are grainer with a strong flavor. Remember that the additives and stabilizers significantly affect the taste and texture of the protein powder. You may choose to buy unflavoured soy protein so that you have a chance of adding your flavours.

ASCVS 5 Best Plant Protein Powder Options

Here are our top 5 options as tested and ranked by our experts:

1. Bulk supplement Soy Isolate Powderbest soy protein isolate option by bulksupplements

Bulk supplement soy is an excellent choice for individuals looking for a pure and complete package. This protein soy has the full amino acid profile to help you build and maintain strong muscles.

  • Bulk supplement soy contains calcium which is essential for strong teeth and healthy bones. Calcium also helps stimulate digestion.

The bulk supplement is vegan-friendly; it doesn’t cause allergies or sensitivities. This soy protein contains only 110 calories per scoop to help you avoid gaining fat but build muscles instead. This product does not contain carbohydrate or sugar.

Bulk supplement soy has a smooth consistency when blended and mixed with milk or water. However, the mixture settles quickly, and you must keep stirring as you drink.

Each 30 grams serving contains 27 grams of pure protein. 30 grams of this protein isolate is recommended per day. This soy supplement comes in a variety of flavors to choose from

At a glance

  • 27 g of protein per serving
  • Complete amino acid profile
  • Pure ingredients without additives or sweeteners
  • Low fats and calories
  • Highly certified to be safe
  • Unflavoured
  • Pure soy isolate
  • Offers value for money

Overall, we love the fact that Bulk supplement soy protein contains no fillers or sweeteners. It is a recommendable powder for individuals looking for something pure and straightforward to help them increase their protein intake.

2. MHP probiotic- SR plant protein powder

mhp soy protein isolate container

This is a product of maximum Human Performance (MHP). Probiotic SR is a slow releasing protein supplement that keeps you feeling fuller for more extended periods as your body derives vitals nutrients. MHP probiotic –SR is enriched with several amino acids and proteins. The complex fats included in this product are essential for providing maximum energy during your workouts.

This product is highly recommended for individuals who would love to push their workouts to the next level. The 12- hour release of amino acids ensures that your muscles receive the proper nutritional support for timely recovery. In this case, your body prevents you from catabolic muscle waste.

MHP probiotic –SR offers you 130 calories, 4 grams of fat, 29 grams of protein and 3 grams of carbs per serving. You will be happy with the solubility of MHP probiotic SR. 2-3 meals a day of this soy protein will help you build the muscles that you have always admired.

At a glance

  • 20 grams of protein per serving
  • Includes casein and whey
  • Slow protein release formula
  • Excellent amino acid profile
  • Contains Branched amino acids and essential amino acids
  • Helps in muscle building and recovery


  • Priced on the higher side
  • Contains dairy products; whey and casein that might lead to intolerance

We feel that this is an excellent product for those looking for a post-workout recovery protein supplement. It contains three different types of protein to help provide steady amino acid release up to 12 hours.

3. Universal Nutrition Advanced Soy Protein

advanced soy pro supplement container

The universal nutrition protein supplement is ideal for individuals looking to boost their energy during training. It has a complete amino acid profile that the body requires to convert protein into muscle.

The supplement does not expose soy to ethanol that will extract all necessary nutrients of soybeans. Instead, the water-based wash ensures your body gets the maximum benefits of soy that you need to build muscles and stay healthy.

At a glance

  • 27 grams of protein per serving
  • Contain soy protein isolate
  • 125 g isoflavones per serving
  • Complete amino acid profile
  • Designed to boost energy during intense workouts
  • Low calories and fat
  • Affordable

We generally feel that this is a high soy protein on the market today. It is rich in nutrients yet affordable.

4. Bob’s Red Mill – Gluten free protein powder

bobs red mill soy protein that is gluten free

Bob’s red mill is a wholesome protein powder is clean. Also,  pure ingredients to help you increase your protein intake. This soy powder contains all amino acids essential for muscle recovery and growth.

The powder easily blends into your smoothies to give you an instant energy boost. We love the fact that it comes unflavoured to provide you with a chance to add your preferred flavors. It is also a great ingredient when it comes to preparing pancakes and bars.

  • Bob’s red mill soy protein powder is gluten free and therefore does not cause any intolerance or sensitivity.

At a glance

  • 17 grams of protein per serving]
  • Dissolves fast
  • Unflavoured
  • Complete amino acid profile
  • Pure and simple
  • Can be used in preparing several delicacies such as shakes and cakes
  • Great value for money


  • One may need to purchase a four pack for better value.

We love the fact that this product undergoes a through our testing by kosher pareve. This is enough proof that you will get what you deserve; clean and pure total soy protein.

5. Six Star Nutrition

six star pro bodybuilding soy supplement

There is no doubt that six star is a complete amino profile soy protein. It also contains plenty of amino acids that your body is unable to produce but needs for proper muscle functioning.

Six-star nutrition is 100 percent soy; it contains no fats or cholesterol. The zero lactose contained in the six nutrition makes it so ideals for individuals with intolerance and allergies. This soy protein contains 4g fiber which is rich in vitamins B6 and B12 that are essential for providing energy that fuels the body functions.

We are confident that this product will suit vegetarians as the primary source of protein because of its ability to provide a complete amino acid.

Six star soy protein tastes good and mixes easily to give you the energy that you need throughout the day. It also blends well with any shakes.

At a glance

  • 20 grams of protein per serving
  • Contains protein isolate and concentrate
  • Great for post-workout muscle recovery
  • Contains vitamin B6 and B12
  • Comes in French vanilla flavor


  • Contains just 15 servings per package
  • Contains sucralose and extracts of potassium sweeteners

Our Last Scoop

Keep in mind that even the best protein powders for vegetarians and vegans are only used to supplementing your existing diet. Ensure that majority of your protein diet intake is met by healthy foods. Remember to choose a soy protein powder that suits your fitness goals and budget. Unflavoured soy protein supplements give you a chance to add your flavours according to your taste buds. Looking for a low carb protein option? Check out the ASCVS review as well.

Brice Mansa - ISSA Certified Personal Trainer & Nutrition Coach

Brice Mansa is a certified personal trainer from the ISSA. He took his knowledge from college to provide a more broad education method (blogging) to enhance the lives of thousands of people. Tired of being limited as a personal trainer in a gym with a single client, he stepped up his game. ASCVS.org is proud to host him and the team of 4 other certified personal trainers and kinesiologists. When Brice isn't training or writing he likes long walks on the beach, puppos & motorcycles. We hope you enjoy his content, tips & stories!