Best Soy Protein Powders Ranked for 2018 – Top 10 Brands

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Jump Ahead to the Best Soy Protein Powders

There are two overarching classes of nutrients; micronutrients and macronutrients. Some macronutrients, like protein, are absolutely essential for our overall health and wellbeing. Protein functions as a structural component of all our cells, as a protective antibody, as an enzyme, and much more.

We need approximately 0.36 grams of protein per pound of bodyweight – which translates to around 54g of protein per day for the average 150 lb person. However, this recommended amount is on the low side for many folks, especially those who exercise regularly or require extra protein for another reason. For some, reaching adequate protein intake from the diet alone can be difficult, which is one reason people turn to protein supplements. Today, we’re going to talk about soy protein powders, covering all the soy protein benefits, soy protein dosage, potential side effects, and more. Let’s get started!

What Are Soy Protein Powders?

Soy protein powders are powdered health supplements that use protein extracted from the soybean. Also known as soya bean, the soybean is species of legume native to east Asia, that is now grown worldwide. It’s a crop that is fairly easy to grow, nutritious, and protein rich, which makes it a very popular crop for commercial farming.

Soy is used in countless health products, and is also the main ingredient in many foods including tofu, soy sauce, soy milk, etc. It’s commonly used as a meat replacement for those following a vegetarian or vegan diet. Soy is commonly processed into strong soy protein powders which essentially takes the dried, processed soy and extracts the protein from it. Good soy protein powders can offer upwards of 20g of protein in each serving, so they are a great way to supplement your daily protein intake.

As far as actual protein powders, they are just what they sound like: protein extracted from soy, dried, and powdered for convenience. The protein is extracted either using a water extraction or alcohol extraction process. There is some evidence to suggest that water extraction method maintains higher isoflavone content in the finished product. We’ve noted which of the best soy protein supplements use the water extraction technique in the guide below.

Typically these powders are used by making drinks or shakes, but they can also be used in cooking/baking. They provide a versatile, easy and affordable way to increase protein intake, and are therefore a very popular supplement class.

Benefits of Soy Protein

Soy protein is a rich source of high quality protein, which is essential for good health. Protein makes up about 15% of our body mass, and without adequate protein intake we can suffer from a wide variety of health issues. So, in a way, the soy protein benefits are similar to the benefits of protein itself. Additionally, the following benefits of soy protein apply:

  • Rich protein content
  • 15-25+ grams of protein per serving
  • Good amino acid profile
  • Supports healthy muscles, skin, hair and more
  • Important for muscle recovery
  • Vegetarian and vegan friendly
  • Useful as a dieting tool
  • Protein can help you feel more full for longer
  • May help increase muscle mass and strength
  • Supports bone health
  • Soy contains isoflavones
  • Supports good health as we age

Protein is a key source of amino acids, which serve countless functions in the human body. Some aminos can be produced in our bodies, while others have to be consumed through our diet. The best soy protein powders include all the key amino acids in good quantities, which can provide numerous health benefits.

Additionally, top soy protein supplements contain high concentrations of isoflavones. Soy isoflavones are a natural compound found in the soybean, and they have been shown to have some positive health effects. For one, isoflavones have been shown to have cardioprotective properties, which helps keep the heart healthy. They may also help to improve bone density and improve bone health, among other benefits. All soy protein powders will contain isoflavones, but you will find higher concentrations in the products that use water extraction (we’ve noted which ones use water extraction in the guide).

Really, it’s difficult to overstate the importance of adequate protein intake. It can make a huge difference in your health. With that said, some people get enough protein from their diet alone, while others might need the help of a top soy protein powder. We’ll discuss this in detail in the guide below.

Who Can Benefit From Soy Protein?

Protein is important for everyone. It’s particularly important for specific groups of people, such as athletes. In this section, we’ll take a closer look at the specific groups of people that can experience the most soy protein benefits from these health products.

  • Athletes – athletes need a lot more protein than the average person, because protein is a key component of muscle recovery. In order to reach these higher-than-average recommended protein intakes, many athletes turn to supplements to help, as it can be difficult to reach those protein levels from dietary sources alone.
  • Vegetarians – with the daily recommended intake of protein being at least 50g/day for adults (and often much more than that is recommended), reaching that protein intake without meat products can be difficult. Most of us get the majority of our protein from meats, so vegetarians who have made the dietary choice to avoid meat products can often struggle to consume adequate protein.
  • Vegans – like vegetarians, vegans often struggle with their daily protein needs. In fact, vegans have even more difficulty, because many protein-rich foods that are vegetarian, are not vegan. This includes eggs and dairy products. Additionally, many of the most popular protein supplements, such as whey protein, are made with dairy and are therefore not vegan. Soy protein powders are one of the very few vegan-friendly protein supplements and provide vegans with a simple and effective way to increase protein intake.
  • Dieters – soy protein powders can be used to supplement your diet and can also be used as meal replacement tools. Soy protein shakes can be very filling, and protein helps you feel full for longer (known as satiety). So, many choose to use soy protein supplements as a way to boost their dieting efforts.

How to Take Soy Protein Powders

Soy protein powders are sold in large tubs, and usually contain a scoop that can be used to measure out a single serving. A single serving typically contains 15-25g of protein, although the soy protein dosage (and the size of the serving) can vary from product to product.

There are both flavored and unflavored versions available. Regardless, they’ll need to be mixed into a liquid, such as water or milk. You can also throw in various other ingredients to make tasty, filling protein shakes. Typically, it’s best to use a blender or a shaker bottle to mix these powders up, as simply stirring with a spoon may leave some chunks.

Some people also like to cook with soy protein, which is an easy way to add additional protein content to the foods you’re already eating. You can add it to soups, stir-frys, and shakes, use it as a meat alternative, and more. To do this, we recommend choosing an unflavored product so that it doesn’t affect the taste of your meal.

For athletes, soy protein should be taken after working out, ideally as soon as possible after finishing exercising. The faster you can get amino acids into your system after working out, the better. Soy protein has a good amino acid profile that can benefit post-workout recovery. For general protein supplementation/meal replacement, soy protein can be taken at any time of the day. Be sure to drink plenty of liquids when you use protein powder products.

Are There Any Side Effects?

Soy protein supplements can cause some minor gastrointestinal issues in some folks, including nausea, diarrhea, stomach upset, etc. Most people will not notice any substantial side effects, though.

There is some concern with long-term use of soy products, including soy protein. Some research has suggested troubling potential side effects when soy products are taken for long periods of time. Soy can potentially cause chronic inflammation, itchy throat, mineral deficiencies, and more. There is also some concern based on the fact that the vast majority of soy grown is GMO soy, although there are a few non-GMO options out there.

If you’re concerned, you should speak with your doctor and do some research on your own. For now, know this: the majority of these potential side effects are caused from long-term use, so short-to-medium-term use should be fine. Additionally, there is a lot of conflicting research out there, with some experts claiming that soy is harmless, and others that soy is dangerous. Speak with your health professional if you have concerns.

Things to Look for in a Good Soy Protein Powder

Like the majority of products these days, there are a ton of options when it comes to choosing an effective soy protein powder. If you’re looking for the best option for you, keep the following factors in mind:

  • Protein content – since you’re taking powerful soy protein powders for their rich protein content, obviously a big consideration should be the amount of protein offered by each product. Each product offers a different amount of protein, generally with a range of 15 to 25 grams per serving. When comparing products, take note of the amount of protein per serving, as well as the size of the serving itself. Some products may appear to have a lower protein content, but they may just have a smaller serving size than average.
  • Included ingredients – take a look at what is in the product(s) you’re considering. Is it just soy protein, or are there additional ingredients? Is it soy protein isolate, or another form? Also, consider any dietary sensitivities you have, and keep an eye out for any products you may want to avoid, such as artificial flavorings/sweeteners, GMO products, etc.
  • Brand quality – who makes the product? Are they a well known, reputable company? On our list of the top 10 soy protein powders, we’ve only recommended products by great companies. However, there are a lot of other products out there, so if you choose to shop elsewhere, do some research about the manufacturer before buying.
  • Flavor/taste – this one can be difficult, obviously, without being able to actually try each product. However, you’ll want to find the best tasting soy protein powder for you, based on the flavors you tend to like. You can also look at soy protein reviews to learn how other people liked the flavor. In general, it’s best to go with simple flavors, like chocolate or vanilla, or even unflavored, so you have a variety of choices when it comes to what you can mix the powder with.

Top 10 Soy Protein Supplements Compared

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1. Universal Nutrition Advanced Soy Protein

Universal-Nutrition-Advanced-Soy-Protein

Universal Nutrition Advanced Soy Protein is a simple and highly effective soy protein powder. It contains an impressive 27g of protein in each serving, making it one of the most protein-rich products on this list. It uses water-washing process, instead of the traditional alcohol extraction process, in order to maintain isoflavones content, which can provide additional benefits. Plus, this is made by one of the best-known names in the business, so you can trust you’re getting a good product when you go with Universal Nutrition!

Highlights:

  • 27g protein per serving
  • Soy protein isolate
  • Extracted with water to maintain isoflavone content
  • Up to 125mg isoflavones per serving
  • Excellent amino acid profile
  • Designed for athletes to boost recovery
  • Helps you feel full for longer – great for dieting
  • Low calories and fat
  • An affordable and efficient source of high-quality protein
  • Made by a great company
  • Excellent value

What’s in it:

  • 27g soy protein isolate

Who makes it: This product is made by Universal Nutrition, a large sports nutrition company that has been in business since 1977. With 40+ years of industry experience, the team at Universal Nutrition is experienced and efficient in producing new, effective and cutting-edge products. They now manufacture a wide range of useful products, but their focus has always been on the sports community. Today, Universal Nutrition is one of the most-respected brands amongst athletes and strength trainers, and for good reason!

Bottom line: Overall, this is one of the best soy protein powders on the market. Its simple formula makes it a very affordable choice, and its water-washed extraction makes it rich in the isoflavones that are found naturally in soybeans, but not necessarily in similar soy protein products. It comes with the backing of a highly reputable and respected company, and is our overall top recommendation. It also may be the best tasting soy protein powder, according to many users online!

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2. Bulksupplements Pure Soy Protein Isolate Powder

Bulksupplements-Pure-Soy-Protein-Isolate-Powder

Bulksupplements Pure Soy Protein Isolate Powder is a simple, pure and effective soy protein supplement. It contains 27g of protein in each 30g serving, making it about 90% protein by weight. It contains, literally, nothing but soy protein isolate; yep – check the ingredient list, and you’ll see only one ingredient! This simplicity is great for those looking for a “clean” product, and also makes this one of the more affordable options on this list.

Highlights:

  • 27g protein per serving
  • Pure soy protein isolate – nothing else
  • Good amino acid profile
  • Pure and simple
  • No additives or sweeteners
  • Low calories and fat
  • Perfect for dieters
  • Made by a great company
  • Very good value for money
  • Well reviewed
  • Unflavored for versatility
  • Lab tested for purity and consistency

What’s in it:

  • 27g soy protein isolate
  • Nothing else!

Who makes it: This product is made by Bulksupplements, an online retailer of simple and pure supplements and health products. Instead of using fancy packaging or aggressive marketing, Bulksupplements chooses to instead focus their energy on creating high quality, effective and affordable products. Their simple packaging and marketing keep prices low, while their lab-tested guarantee keeps their consistency and quality high.

Bottom line: Overall, this is a powerful soy protein powder with no added fillers, flavors, sweeteners, or “fluff”. This is just straight-up soy protein isolate in a simple bulk bag – perfect for those looking for a clean product to help them increase their protein intake. It’s not flavored, so you can mix it with virtually anything, and it’s very affordable.

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3. NOW Foods Soy Protein

NOW-Foods-Soy-Protein

NOW Foods Soy Protein is a simple product that’s one of the best soy protein powders on the market today. It’s simple formula contains soy protein isolate, and nothing else. Even better, the soy used is 100% GMO-Free, which makes this a great choice for those looking to maintain a clean diet. At 20g per serving, it’s on the lower side of the scale in terms of soy protein dosage, but keep in mind that the serving size is also smaller than usual, so the 20g dosage is not very relevant.

Highlights:

  • 20g protein per serving (in small, 24g dosage)
  • Pure non-GMO soy protein isolate
  • 100% GMO-free
  • Simple and pure
  • Helps improve post-workout recovery
  • Low calorie and fat
  • Improves dieting efforts
  • Useful for meal replacement
  • Available unflavored and in various flavors
  • Good source of complete protein
  • Made by an excellent company
  • Good value for money

What’s in it:

  • 20g soy protein isolate

Who makes it: This product is made by NOW Foods, a large scale producer of health foods, fitness supplements, and other health products. Founded in 1968, NOW Foods has now expanded to become one of the biggest and best manufacturers in the industry. Their large size allows them to produce high quality products at rock-bottom prices, and their reputation for quality and consistency is unmatched.

Bottom line: Overall, this is perhaps the best soy protein powder for those looking for a GMO-free protein source. It’s a simple and effective product, with no fillers or unnecessary additives. Very few good soy protein powders are made without the use of GMO soy, so this is a unique and welcome addition to this list. And, of course, it’s made by NOW Foods, one of the best-known and most respected names in the business!

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4. Naturade 100% Soy Protein Booster

Naturade-100-Soy-Protein-Booster

Naturade 100% Soy Protein Booster is a unique and powerful soy protein powder that combines GMO-free soy protein with enzymes, phytonutrients, and more. With 25g of protein in each serving, as well as a phytonutrient blend from carrot, spinach, broccoli and more, this product is a potent health booster and a great choice for those looking for a more complete approach to protein supplementation.

Highlights:

  • 25g protein per serving
  • GMO free soy
  • Added enzymes
  • Added phytonutrients from carrots, spinach, broccoli, etc.
  • No artificial sweeteners or additives
  • Natural flavor for versatility
  • Zero sugar; low carbs, calories, fat.
  • Useful for dieting
  • Quality and purity guaranteed
  • Simple and effective

Drawbacks:

  • Expensive
  • Natural flavor may be too “grassy” for some

What’s in it:

  • 25g soy protein isolate
  • Phytonutrient blend, from carrot, broccoli, tomato, cabbage and spinach
  • Enzyme blend, from bromelain and papain

Who makes it: This product is made by Naturade, a large supplement and health product manufacturer founded in 1926. With nearly a century of experience, Naturade is known for making highly effective, affordable and high-quality products. They now make a wide variety of health products, and choose to focus on simple, pure formulas.

Bottom line: Overall, this is a great health product. It’s a good choice for those looking for a strong soy protein powder with the added benefit of phytonutrients and enzymes. With that said, it’s definitely on the expensive side of things, and some people do not like the flavor.

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5. Nature’s Plus Spiru-Tein

Natures-Plus-Spiru-Tein

Nature’s Plus Spiru-Tein is a unique and innovative health product that is intended to be used as a meal replacement. It does contain soy protein, but it offers a lot more than just that. It’s protein-rich formula includes soy, rice and pea protein, as well as 100% daily value of all vitamins, essential minerals, bee pollen, spirulina, enzymes, and much more. It’s vanilla flavored, which makes it versatile and easy to use with a variety of foods.

Highlights:

  • 14g protein per serving
  • Combines soy, rice and pea protein
  • GMO free soy
  • 100% daily value percent of all major vitamins
  • Added dietary minerals
  • Added enzymes
  • Spirulina, choline and other dietary aids
  • Great for meal-replacement or healthy snacking
  • Only 99 calories per serving, but very filling
  • Made by a good company
  • Well reviewed

Drawbacks:

  • Expensive
  • Lower-than-average protein content
  • Bee pollen can cause allergic reactions to those allergic to bee stings

What’s in it:

  • 14g protein, from soy, rice and pea protein
  • Spirulina, choline, bee pollen and more
  • Enzymes
  • Vitamins and minerals

Who makes it: This product is made by Nature’s Plus, a natural supplement producer based in New York. Since 1972, Nature’s Plus has been dedicated to creating effective fitness and health supplements using natural, wholesome ingredients. With over 45 years of experience, and an excellent track record and reputation, Nature’s Plus is a great company to buy from.

Bottom line: Overall, this is a good health product and so much more than just a soy protein supplement. This product is ideal to use as a meal replacement for those on diets, as it packs in a ton of nutrients into a low-calorie package. It’s on the expensive side, though, and those with allergies to bee stings should avoid this product as it contains bee pollen.

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6. Jarrow Formulas Iso-Rich Soy

Jarrow-Formulas-Iso-Rich-Soy

Jarrow Formulas Iso-Rich Soy is a good soy protein powder containing 25g of protein in each serving. The product uses a water extraction technique, allowing it to be rich in isoflavones, a class of phytochemicals found naturally in soybeans. Isoflavones have been shown to have potential disease-fighting properties.

Highlights:

  • 25g protein per serving
  • Water extraction leaves isoflavones intact
  • 56mg naturally occurring isoflavones per serving
  • Supports post-workout recovery
  • Useful for dieting
  • No artificial flavors or sweeteners
  • Unflavored for versatility
  • Made by a trustworthy company
  • Good value

Drawbacks:

  • Some may find the flavor unpleasant

What’s in it:

  • 25g non-GMO soy protein isolate
  • Water washed extraction to maintain isoflavone content

Who makes it: This product is made by Jarrow Formulas, a Los Angeles-based supplement manufacturer. Founded in 1988, Jarrow now has worldwide operations, and its products have won numerous awards for their high quality and efficacy. Jarrow Formulas focuses on creating cutting-edge new supplements using their years of industry experience and expert team members.

Bottom line: Overall, this is a top soy protein powder for those looking for the potential healing benefits of isoflavones. This is one of the few products on this list that use the water extraction technique, which helps keep isoflavone levels high in the finished product. It’s made by a great company and offered at a reasonable price, but some may find the flavor unpleasant.

7. Six Star Pro Nutrition Elite Series Soy Protein Powder

Six-Star-Pro-Nutrition-Elite-Series-Soy-Protein-Powder

Six Star Soy Protein Powder is a simple and effective soy protein powder from the makers of Six Star/MuscleTech. It uses a blend of soy protein isolate and soy protein concentrate to deliver 20g of protein in each serving. It also adds B vitamins, including B6 and B12. It’s also offered in a small package, which is nice to test things out.

Highlights:

  • 20g protein per serving
  • Soy protein isolate and concentrate
  • Added vitamin B6 and B12
  • Tasty french vanilla flavor
  • Added digestive enzyme blend
  • Supports muscle growth
  • Benefits post-workout recovery
  • Can be used as a dietary aid
  • Made by a well known company

Drawbacks:

  • Sweetened with sucralose and acesulfame potassium
  • Uses soy protein concentrate, a cheaper form of than isolate
  • Only 15 servings per package

What’s in it:

  • 20g protein, from soy protein isolate and soy protein concentrate
  • Added digestive enzymes

Who makes it: This product is made by Six Star Pro Nutrition, a sports nutrition company founded in 2005. Six Star is owned by MuscleTech, which is a huge nutrition company that is very well known and well respected. Six Star Pro focuses on sports nutrition, crafting innovative and effective supplements for the athletic community.

Bottom line: Overall, this is a good soy protein supplement from a good company. It’s on the lower side of the scale protein-wise, due to its use of soy protein concentrate which has a lower protein-per-gram rating than isolate. Additionally, this product uses artificial sweeteners. It also comes packaged in a fairly small container, with only 15 servings – this could be a good thing or a bad thing, depending on how you look at it.

8. EAS Soy Protein Powder

EAS-Soy-Protein-Powder

EAS Soy Protein Powder is a simple product that offers 20g of soy protein in each serving. It’s sweetened with fructose, which is good news for those looking to avoid artificial sweeteners, but also means that it has a higher caloric value and higher sugar content than average. Its simple vanilla flavor makes it easy to mix with a variety of different ingredients.

Highlights:

  • 20g protein per serving
  • Soy protein isolate
  • Sweetened with natural fructose
  • Supports muscle growth
  • Stimulates recovery after working out
  • Helps you get fit and toned

Drawbacks:

  • Expensive
  • Higher sugar content than average

What’s in it:

  • 20g soy protein isolate

Who makes it: This product is made by EAS, a large sports nutrition company with over 20 years of industry experience. They specialize in sports/fitness supplements, including protein powders, pre-workout supplements, weight loss aids, etc. They are a lesser-known company, but definitely make good products.

Bottom line: Overall, this is a good product with a simple formula. It offers 20g of protein, and is sweetened with natural fructose. It is a bit on the expensive side, and contains 17g of sugar per serving – so if you’re watching your sugar levels or the thickness of your wallet, there are better options out there.

9. Bob’s Red Mill Gluten Free Soy Protein Powder

Bobs-Red-Mill-Gluten-Free-Soy-Protein-Powder

Bob’s Red Mill Gluten Free Soy Protein Powder is a simple and strong soy protein powder. It has one ingredient: isolated soy protein – and nothing else! This is actually made by a food manufacturer that specializes in grains, flours, and other baking goods. It doesn’t have any of the flashy marketing of some other products, but it’s a very affordable and pure product and a great choice for some folks.

Highlights:

  • 17g protein per serving (small serving size)
  • Unflavored for versatility
  • Dissolves instantly
  • Can be mixed into shakes, baked goods, oatmeal, etc.
  • Pure soy protein and nothing else
  • Complete protein source
  • Simple and pure
  • Kosher
  • Made by a great company
  • Good value

Drawbacks:

  • Best value requires purchase of a 4-pack

What’s in it:

  • 17g soy protein isolate (serving size is small)

Who makes it: This product is made by Bob’s Red Mill, a huge manufacturer of baking goods, flours, grains, baking mixes, and other food products. You’ve surely seen Bob’s Red Mill products in your local grocer in the baking or natural foods section. Bob’s has built a reputation for superior quality and affordable prices, and are a great company to work with.

Bottom line: Overall, this is a simple and pure product and a great choice for those wanting to follow a clean diet. It’s made by a food company, not a supplement company, so you don’t get the flashy marketing or additives; just pure soy protein! While it only contains 17g of protein per serving, keep in mind that the serving size is smaller than average.

10. MHP Probolic-SR

MHP-Probolic-SR

MHP Probolic-SR is a unique protein supplement that blends several different types of protein, plus added amino acids, into one powerful product. This product makes our list of the top soy protein powders, but really, it’s more than just that; it is a blend of soy protein, whey protein, and casein protein, with additional BCAAs and amino acids to boot. It’s designed to provide sustained release protein throughout the day, for up to 12 hours. This is a great protein supplement, but do keep in mind that it does contain dairy products.

Highlights:

  • 20g protein per serving
  • Combines soy, whey and casein protein
  • Added BCAAs and amino acids
  • Sustained release formula
  • Designed to keep muscles fed for up to 12 hours
  • Helps build muscle
  • Fuels post-workout recovery
  • Ideal for athletes
  • Good amino acid profile

Drawbacks:

  • Contains dairy products (whey and casein protein)
  • On the expensive side

What’s in it:

  • 20g protein, from soy protein isolate, casein protein, and whey protein concentrate
  • Added branched chain amino acids

Who makes it: This product is made by MHP, which stands for Maximum Human Performance. MHP develops a variety of supplements, but mainly focuses on protein, strength and recovery supplements, and weight loss tools. Their goal is to help their customers reach their Maximum Human Performance, through fitness efforts and supplementation.

Bottom line: Overall, this is a good product for those looking for a potent post-workout recovery blend. Its unique mix of 3 different types of protein means that it will provide a steady stream of amino acids for up to 12 hours after taking it. It also contains added BCAAs, which are greatly beneficial for recovery. With that said, it does contain dairy, so if your reason for wanting a soy protein product was due to a dietary restriction/preference, keep that in mind.

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Austin Meadows

Written by Austin Meadows

Austin Meadows is an independent writer and consultant specializing in health and wellness topics. With more than 7 years of experience writing in the natural health industry, Austin strives to deliver accurate, concise and researched based information to his readers. You can find more of Austin's work at Olympic-Creative.com, or connect with him on LinkedIn.