Soy protein powder is a great way to add more protein to your diet, and it's especially beneficial if you're looking to control blood sugar and lower cholesterol.  

In this blog post, we'll be discussing the best soy protein powders on the market today. We'll go over what makes each one of these powders stand out from the rest, and why you should consider giving them a try.

If you're looking for a high-quality soy protein powder that can help you reach your fitness goals, then look no further than the options we've listed in this blog post. Each of these powders has been carefully selected based on their quality and effectiveness.

We will also include our handy Buyer’s Guide with the most frequently asked questions about soy protein powders and our brilliant answers to them. Then we will reveal our top choice for the best of the best in soy protein powders and why. Let’s get started.

How we choose our WOW products

Soy protein powder is a great source of plant-based protein, but it can be hard to find the best one.  Most soy protein powders are created equal, but there are a few that stand out from the pack.

After reading thousands of reviews on Amazon, we have found the best soy protein powder for you.  Here are our top three choices.

Best for Weight Loss

Natureade Total Soy Protein Powder and Meal Replacement Shake

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Natureade Total Soy Protein Powder and Meal Replacement Shake

Best for Weight Loss

Why We Are “Wow-ed” By It

Looking for an edge in your weight loss journey? Make Naturade Total Soy Protein Powder and Meal Replacement Shakes your go-to shake!

Not only does it have fewer carbs per serving, but it also has more dietary fiber and 47% less sugar. Talk about a triple threat!

Plus, with 0 trans fat, 13 grams of protein, 130 calories, and 24 vitamins and minerals, this shake can easily serve as a meal replacement. Now that's what we call killing two birds with one stone!

What “Wow Factors” You Should Know About

Looking to lose weight fast? Replace one meal a day with Natureade Total Soy Protein Powder and Meal Replacement Shake!

Their delicious vanilla shake is lactose-free, gluten-free, and made with non-GMO soy to help you slim down quickly and safely.

Packed with 24 vitamins and minerals, this shake is a nutritious way to fuel your body and promote weight loss.

Plus, it's easy to make - just mix it with water or milk and enjoy! To maximize results, combine their shake with light exercise 4 days a week.

Best Overall Quality

Bulk Supplements Soy Protein Isolate Powder

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Bulk Supplements Soy Protein Isolate Powder

Best Overall Quality

Why We Are “Wow-ed” By It

Adding Bulk Supplements Soy Protein Isolate Powder to your diet is a great way to increase your protein intake.

This powder is a complete protein source, meaning it contains all the essential amino acids your body needs to perform optimally.

It's perfect for athletes and people who lead active lifestyles, as it can help build muscle and support fitness goals. Plus, it's vegan, unflavored, and easy to add to any beverage or recipe.

What “Wow Factors” You Should Know About

This flavorless powder is derived from organic soybeans and is an excellent source of amino acids and essential nutrients.

Soy Protein Isolate is an excellent alternative to whey, casein, and other milk-based protein powders.

It's perfect for athletes or anyone looking to improve their muscle recovery and endurance.

With its high protein content, Bulk Supplements Soy Protein Isolate Powder is perfect for post-workout shakes or smoothies.

Best for Vegans

Bob's Red Mill Gluten Free Soy Protein Powder

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Bob’s Red Mill Gluten Free Soy Protein Powder

Best for Vegans

Why We Are “Wow-ed” By It

Looking for a delicious, dairy-free way to add protein to your diet? Bob's Red Mill has you covered with their Gluten Free Soy Protein Powder.

This unsweetened, unflavored powder is perfect for vegans and vegetarians looking for a nutritional boost. Simply add it to your favorite smoothie, shake, or hot cereal for a quick and easy protein fix.

Soy Protein Powder is a healthy alternative to animal protein and is packed with all the essential amino acids your body needs.

It's also easy to digest and has very little flavor, so you can add it to any food or drink without altering the taste. Whether you're cooking up a storm in the kitchen or on the go, their Soy Protein Powder is a convenient way to get the protein you need.

What “Wow Factors” You Should Know About

This unflavored, unsweetened powder is an easy way for vegans and vegetarians to supplement their protein intake. Perfect for smoothies, shakes, pancakes, bars, and more.

Bob Moore knows a thing or two about hard work and keeping it simple. That's why his Oregon-based company, Bob's Red Mill Natural Foods, uses old-world technology to mill hundreds of all-natural whole-grain products.

At Bob's Red Mill, they're dedicated to the manufacturing of natural foods in the most natural way possible. That's why they stone-grind all common and most uncommon grains into flour and meal in their over 100-year-old mills.

They also mix them by hand in small batches before packaging them up fresh for you to enjoy at home. That's a quality you can count on!

Our “WOW Factor” Buyer’s Guide

Soy protein powder is a great source of plant-based protein, but there are a lot of different brands and types available. How do you know which one to choose?

It can be hard to figure out which soy protein powder is the best for you. Do you go with a concentrate, isolate, or hydrolysate? What about organic or non-GMO soy? And what about flavor?

We know that you still have questions. No problem. We have the answers. Here are the most frequently asked questions about soy protein powders and our answers to them.

Is soy a good protein powder?

Yes, soy is a high-quality protein and it makes an excellent source of protein for a protein powder. Soy is also a good source of fiber, vitamins, and minerals.

One potential downside to using soy-based protein powders is that some people are allergic to soy. So if you have any known allergies to soy products, then you'll want to avoid soy-based protein powders.

Which is healthier soy or whey protein?

Soy protein is healthier than whey-based protein.

Whey protein powder is a dairy product that contains all of the milk sugar called lactose. Lactose is broken down into glucose and galactose in the small intestine. Galactose is a sugar that is not well absorbed and can cause problems for some people who have difficulty digesting it.

Soy protein, on the other hand, does not contain any lactose. It is also a complete protein, meaning that it contains all of the essential amino acids needed to build muscle.

Soy also has a high concentration of antioxidants, which can help protect cells from damage caused by free radicals.

Is pea or soy protein powder better?

Soy protein powder is better overall because it contains all the essential amino acids, whereas pea protein powder does not.

On the other hand, pea protein powder has a higher absorption rate than soy protein powder, meaning your body will be able to use more of the pea protein.

Soy protein powder can cause bloating and gas in some people because it's harder for your body to digest. In addition, some people are allergic to soy products whereas pea protein has no known allergens.

But leaving allergies aside, in a straight comparison of the two, soy protein probably is the winner simply because it is a complete source of protein (although pea protein is only slightly lower).

Can you build muscle with soy protein?

There is some evidence that soy protein can help you build muscle. One study showed that people who supplemented their diet with soy protein had greater gains in muscle mass and strength than those who didn't. 

However, more research is needed to determine whether soy protein is truly effective for building muscle.

So far, it seems that the best way to increase your muscle mass and strength is through resistance training combined with a high-quality source of protein, such as whey-based protein.

Soy protein can still be a valuable part of a healthy diet, but it's probably not the best choice for building muscle (although all protein sources will build muscle to one degree or another).

How much soy protein per day is safe?

Although the long-term effects of soy are not fully known, moderate amounts of soy protein appear to be safe.

According to the FDA, a healthy adult can safely consume up to 25 grams of soy protein per day. This amount is equivalent to approximately three ounces of tofu, tempeh, or soymilk.

What are the side effects of soy protein?

Soy protein is a source of protein that is derived from soybeans. It is a complete source of protein, which means that it contains all of the EAAs that the body needs.

Soy protein can be used to improve cardiovascular health and lower cholesterol levels. Additionally, soy protein may help to protect against certain types of cancer.

However, there are some potential side effects associated with soy protein consumption, such as:

1. Allergic Reactions: Some people may be allergic to soy proteins. Symptoms of a soy allergy can include hives, wheezing, coughing, difficulty breathing, and swelling of the face, lips, tongue, or throat. severe allergic reaction (anaphylaxis) can also occur.

2. Digestive Issues: Soy protein can cause bloating, gas, and diarrhea in some people.

If you experience any side effects after consuming soy protein, it is best to discontinue use and consult with a healthcare professional.

Can I replace whey protein with soy protein?

There's no clear-cut answer to this question since it depends on each individual's protein requirements and goals.

Soy protein is a complete protein, meaning it contains all the EAAs our bodies need the same as whey protein. But soy protein is lower in calories than whey-based protein. If you're trying to lose weight, then soy protein may be a better option for you.

On the other hand, if you're trying to build muscle mass, whey-based protein may be a better option since it's more easily absorbed by the body and has a higher biological value (a measure of how well the body can utilize a given protein).

Ultimately, it comes down to personal preference and experimenting to see what works best for you.

Does soy protein increase estrogen?

Soy protein does not increase estrogen levels. In fact, soy protein may even help to decrease estrogen levels by blocking the absorption of estrogen from the gut.

Additionally, soy isoflavones (compounds found in soybeans) have been shown to bind to and block the activity of estrogen receptors, which may help to reduce the risk of breast cancer and other hormone-sensitive cancers.

Does soy protein affect testosterone?

One area where soy protein may have an impact is testosterone levels.

Testosterone is a hormone that plays an important role in both men and women. In men, testosterone helps maintain bone density, muscle strength and mass, sex drive, and sperm production. In women, testosterone helps with libido, and bone density, and maintains lean muscle mass.

There isn't a ton of scientific research on the effects of soy protein on testosterone levels specifically. However, there is some evidence that soy may impact hormone levels in general. For instance, one study found that soy protein increased levels of the hormone thyroxine in rats.

Additionally, a small study in men found that consuming soy protein for three months resulted in lower testosterone levels. However, it's important to note that this study had several limitations and more research is needed before any definitive conclusions can be made.

How much soy protein powder should I use?

The amount of soy protein you'll need will depend on how much protein your diet currently includes. Most people need about 20-30 grams of protein per day, so if you're not getting enough from food alone, you may want to try adding a scoop of soy protein powder to your morning smoothie or oatmeal.

Our Best Advice

Looking for the best soy protein powder? We’ve spent dozens of hours reading thousands of reviews on Amazon from verified customers to find the perfect Soy Protein Powder for your needs.   Here are a few things to keep in mind.

First of all, it seems that everyone is giving soy a hard time these days.  Everything seems to be soy-free as if we ALL have an allergy to this wonderful plant. Personally, I find soy protein in the form of hamburgers tasteless and useless but as a protein powder it is actually quite good (and good for you).  Having a soy allergy doesn't make soy protein bad.  So let's agree to ditch the attitude about soy because, after all, you wouldn't even be reading this blog article if you were allergic to soybeans, would you?  So I'm going to assume that that is not an issue here. Enough said.

Secondly, as a vegan alternative to whey (and casein) protein, soy stacks up well against pea protein and hemp protein.  Especially if we are talking about organic soy protein powder and even more, soy protein isolate.  The best soy protein powders are gluten-free, dairy-free (of course), and non-GMO derived.  Soy protein isolate powder is a great option as is organic soy protein powder.  When it comes to protein supplements, it deserves a place in the top three (together with pea protein and hemp protein).

But whether we are talking about soy milk, soy protein supplements, soy isolate, or soy protein concentrate, the health benefits are clear.  Even, and especially, soy lecithin has a lot going for it.

The health benefits of soy protein isolate powder compared to whey-based protein powder are also fairly clear.  Not only does it have the nine essential amino acids but branched-chain amino acids are often also added to support lean muscle growth.

Even though the ability to build lean muscle mass is not as good as with other protein shakes, muscle growth is still on the table (maybe not for bodybuilders but, certainly, for the rest of us).  Whether the protein derived comes from fermented soy or not, whether we are talking about defatted soybeans, whether we are talking about soy protein concentrate or soy isolate, soy lecithin, or even soy milk, the many health benefits are still there.

Whether we are interested in digestive health or want to find something that will support bone health or support weight loss, a balanced diet that includes soy protein isolate (for the lactose intolerant) will do all of that and more.

As a low-fat weight loss shake, it can't be beaten.  As a way to control blood sugar levels and reduce LDL cholesterol levels, it shines.  And when it comes to taste, a soy weight loss shake is truly delicious and can outperform any other protein shake on the market.

The best soy protein shakes are always made with high-quality protein but there is also the question of choosing chocolate and vanilla flavors (no artificial flavors here).

Obviously, it needs to be sugar-free but it also can't have any artificial sweeteners (or other artificial additives).  Other foods can often hide the ingredients with difficult-sounding words but soy protein isolate (and a plant-based diet in general) is pretty straightforward.  Just read the nutrition label and start to learn what it all means.  Your own health deserves that much.

Some people have their favorite brands such as Naturade Total Soy Protein (a great choice) or Sports Soy Protein Isolate or even Shaklee Energizing Soy Protein but there are many out there equally as good.

All of the top companies produce high-quality protein and Sports Soy Protein Isolate, Shaklee Energizing Soy Protein, and Naturade Total Soy Protein are all top companies.  A protein shake from any of them will be worth getting.

Other soy protein powders may not be that friendly.  Whether we are talking about a soy weight loss shake or protein bars, it isn't the protein content that is the problem but rather what else they add into the mix.  So read the label and make sure you choose wisely.

That is even the case if you choose one of the top companies which I mentioned such as Sports Soy Protein Isolate, Shaklee Energizing Soy Protein, and Naturade Total Soy Protein.  They don't necessarily mean bad but the truth is that they are trying to please everyone and sometimes that means that they please no one.

Not every soy weight loss shake is equal even when it is from a top brand.  For example, Sports Soy Protein Isolate isn't the same as others because soy isolate is not the same as soy milk.  That doesn't make their soy protein isolate bad.  It just means you have to be aware of what you are getting.  It's a lesson in prudence. That's all.

With all of that being said, it is now time for us to reveal our top choice for the best soy protein powder.  Drum roll, please...

Our #1 WOW Choice (and why)

The Best Soy Protein Powder for YOU

Our No. #1 WOW Choice for the best soy protein powder is Bulk Supplements Soy Protein Isolate Powder for best overall quality.

As a complete protein source (including all of the essential amino acids), it is perfect for people who lead active lifestyles to support fitness goals.  It is vegan, unflavored, and easy to add to beverages or any kind of recipe.

Derived from organic soybeans, it is an excellent alternative to whey, casein, and other milk and animal-based protein powders.  Perfect for post-workout shakes or smoothies or simply to get through those late afternoon hours.  Bulk Supplements Soy Protein Isolate Powder is the perfect choice.

It certainly has our vote. We hope you agree! Remember to check prices and availability on Amazon by clicking on the red button below the image. As always, the trick is to get started today!

Best Overall Quality

Bulk Supplements Soy Protein Isolate Powder

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Thanks for stopping by!

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The 3 Best Soy Protein Powders

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