The best soy protein powders supplement a balanced diet, aid in muscle building, and are simple to add into a range of foods. While there are hundreds of powders available in the health-food market, such as brown rice protein powder, hemp protein powder, and whey protein powder, soy is an excellent alternative for both vegetarians and vegans, and can assist them in meeting daily protein demands.

Soy consumption is typically safe, according to study, and soy products may even boost heart health and lower the risk of certain malignancies. Another advantage of soy protein is that, unlike many plant-based proteins, it is a complete protein, which means it contains all nine essential amino acids, though it is deficient in one—methionine. This post discusses 5 best soy protein powders available from Amazon.

How To Select the Best Soy Protein Powder

For a deep dive into choosing the right protein powder for you, head over to my article below:

Testing by a Third Party

Protein powders, particularly those derived from plants, may contain trace quantities of heavy metals. This is most likely due to heavy metal uptake by plants through the air, water, and soil.

However, when ingested in moderation, the quantities seen in protein powders are not found to be detrimental. Buying third-party tested products ensures that the product does not contain dangerous amounts of heavy metals.


Soy protein powders are made from soy protein isolate, which can be found in condensed and hydrolyzed forms. This signifies that the protein has been isolated from the soybean after the carbs and fat have been removed.

Ingredients and possible interactions

It is critical to thoroughly study a supplement's ingredient list and nutrition facts panel to determine which components are included and how much of each component is included in relation to the daily recommended value of that ingredient.


Protein powders may contain sweeteners, allergies, or performance boosters. Reading the ingredient list and selecting third-party tested products wherever feasible will assist you in avoiding consuming a product that enrages intolerances or contains components to which you are allergic. I have spent countless hours reading thousands of user reviews and star ratings to find the best products out there for the best soy protein powder.

Other Dietary Requirements

If you have other dietary requirements you should also bare these in mind. There are some excellent gluten free protein powders available, you can check out the best on the market in my article here:

How We Choose the Best Soy Protein Powder

Looking for the best soy protein powder can be hard, especially with so many different brands and types available. Luckily, our team of experts has read thousands of reviews on Amazon to find the perfect soy protein powder for your needs.

You know that getting enough protein is essential for building muscle and maintaining a healthy lifestyle, but how do you know which type is right for you? We've done all the hard work so that you can easily find and purchase the best soy protein powder without any guesswork or wasted money. Check out our reviews today and get started on your fitness journey!

NOW Sports Nutrition, Soy Protein Isolate

Best in Sports Nutrition Soy Protein Powder

NOW Sports Nutrition

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Why We Love It

This protein is unlike any other, it’s pure, clean, and uncompromisingly effective to help you achieve your fitness goals. Loaded with high-quality vegetable protein and an excellent amino acid profile, regular intake of this unflavored protein powder will have you feeling strong, determined, and ready to take on any athletic challenge.

Not to mention the GMP quality assurance means that every aspect of production has been religiously tested for potency and stability so you know your Soy Protein Isolate is exactly what it says on the package each time!

All this goodness comes in an unbeatably fresh package thanks to being made in the USA by a family-owned and operated company after over 50 years of experience. NOW Sports’ Soy Protein Isolate help keep your body fueled for success with every scoop!

What You Should Know

Now's Soy Protein Isolate is guaranteed to take your workouts to the next level. This product packs 32 ounces of unflavored protein into a 2-pound container, giving you the essential building blocks your body needs to build strength and power during exercise.

This product is ideal for athletes and gym-goers. This product provides proteins and amino acids necessary for muscle growth and repair. With Now's Soy Protein Isolate fueling your routine, you can feel confident in knowing that you will have all the protein support you need.

Natural Nutra Organic Vegan Plant-Based Soy Protein Powder

Best Soy Protein Powder for Blood Circulation

Natural Nutra Organic Vegan Plant-Based Soy Protein Powder

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Why We Love It

Natural Nutra understands that athletes and gym-goers need more than just a few days off from their workouts – they need powerful nutrition to take them to the next level! That’s why Organic Soy Protein Powder provides you with a high-quality protein boost for getting maximum results.

Each bottle is sealed in non-polluting amber glass bottles with heat-sealed sleeves, ensuring the purest product possible. These bottles are completely recyclable, so you can do your part in protecting our planet. additionally, each bottle contains 14 OZ of protein powder that is Gluten Free and easy to swallow. When it comes to fitness nutrition, trust Natural Nutra to be your go-to source.

What You Should Know

With each serving of Natural Nutra Organic Soy Protein Powder, you get 14.4 ounces of the organic and naturally sourced protein you need for an exceptionally active lifestyle or daily fitness routine.

Make your fitness dreams come true with an easy and convenient boost from Natural Nutra Organic Soy Protein Powder! All of the ingredients are responsibly sourced, so you can be sure that what you put in your body is provided from pure sources.

Great for athletes or any gym-goer looking to get an extra edge in their weightlifting or cardiovascular routine. This cleverly crafted soy protein powder will keep your diet full of delicious flavors while providing key nutrients for a longer, healthier life overall.

Nutricost Soy Protein Powder

Best Flavour-Free Soy Protein Powder

Nutricost Soy Protein Powder

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Why We Love It

Nutricost Soy Protein Powder is the power-packed solution to fuel your workouts and take your gains to the next level. With each container containing 2 pounds of unflavored soy protein isolate and 81 servings with 10 grams of protein per scoop, you can rest assured that you're getting full value for what you pay for.

It's vegetarian, non-GMO, gluten-free, and manufactured in a GMP-Compliant and FDA-Registered facility. So you know that with every purchase of Nutricost Soy Protein Powder, you're getting first-class quality nutrition at its finest.

This unique blend ensures maximum performance when it matters most, during your workouts! Enjoy a delicious shake before or after hitting the grind for sustained energy without any fillers or preservatives.

What You Should Know

This 32-ounce unflavored Soy Protein Powder will give you a powerful boost of energy and increased muscle mass. Designed with athletes and gym-goers in mind, it's packed full of complete protein that helps replenish long-term energy levels, repair muscles, and unleash strength faster than ever.

In addition, soy protein powder contains over 7g of naturally occurring branched chain amino acids – giving your body the fuel it needs to get through even the toughest workouts.

Energizing Soy Protein

Best Chocolate Soy Protein Powder

Energizing Soy Protein

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Why We Love It

Energizing Soy Protein is the only soy protein on the market that packs a powerful energy punch as well as its highest-quality, biologically complete protein content. Achieve maximum performance and avoid frequent exhaustion during your workouts with this incredible energy booster!

No more crashing mid-workout; with Energizing Soy Protein by your side, you’ll have sustained energy throughout, allowing you to push yourself harder and reach the peak of your abilities. Not only does it give you a boost, but this top-notch protein also provides 14g of essential non-GMO soy amino acids per serving - including 9 essential amino acids your body can’t produce itself!

It is also naturally low in fat, lactose, and cholesterol free, making it the ideal choice for athletes looking to improve their performance without having to sacrifice their health.

What You Should Know

From the makers of Shaklee comes a delicious, energizing soy protein Powder that is sure to satisfy your cravings. This protein powder is packed with 19 grams of plant-based protein to provide your body with sustained energy and support lean muscle growth!

With its certified gluten-free formula, it’s an ideal choice for athletes and gym-goers. What makes Energizing Soy Protein truly unique is its high percentage of essential amino acids, plus an impressive 6.2g BCAA per serving, to help build and maintain muscle and promote recovery after workouts.

It's perfect for adding a blast of energizing sweetness to your morning smoothies or post-workout shakes! Energizing Soy Protein comes in a 29.75 Ounce container – Making it convenient for refueling on the go!

Bob's Red Mill Gluten Free Soy Protein Powder

Best Gluten-Free Soy Protein Powder

Bob's Red Mill Gluten Free Soy Protein Powder

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Why We Love It

This unique protein source is both vegan and gluten-free, perfect for gym-goers who need extra fuel but want to stay true to their nutrition goals. Not only is it unflavored and unsweetened so that you can use in any recipe or shake without altering the taste, but each serving contains 17g of complete protein.

You don't have to be a vegetarian or vegan to get the benefits - this protein powder is suitable for everyone looking to supplement their protein intake with an easy-to-use powder. Now you can make pancakes, bars, smoothies and shakes that are packed with muscle-building amino acids - all while following your plant-based diet!

Whether you're looking for post-workout energy or just making sure your daily meals hit all your dietary needs, Bob's Red Mill Gluten Free Soy Protein Powder makes it easier than ever.

What You Should Know

Bob's Red Mill Gluten-Free Soy Protein Powder is the perfect solution for those who want to stay active and fit but also have allergies. This isolated Soy flavor is a delicious way to replace those unhealthy cravings with something that packs in tons of nutrients and protein.

With 14 ounces per container, you'll have enough to fuel any workout at the gym or while outdoors. This easy-to-mix formula is a convenient way to add protein to your diet without sacrificing taste. And since it's gluten-free, no worries about setting off an allergic reaction when you eat this powder!

More Information

If you want to learn more about the benefits of pairing your protein powder with a pre-work out, you can check out this article I put together:

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Are you looking for the best soy protein powder for your next workout? With so many different brands and types on the market, it can be hard to know which one is right for you.

We've compiled a list of the most frequently asked questions about soy protein powders so you can know more about these supplements. From protein content to price, you'll be able to find the perfect powder for your needs. With our help, you'll be able to make an informed decision and get the best value for your money.

Is soy protein powder healthy?

Soy protein is beneficial for decreasing cholesterol, LDL cholesterol (the "bad" cholesterol), and triglycerides. Soy protein isolate contains no cholesterol. Protein. If you're a vegetarian or vegan, soy protein is a good way to meet your protein requirements. Additionally, it is low in fat and has no cholesterol. However, since soy protein isolate can come from different sources, it's important to read the label for any potential allergens or potentially dangerous amounts of heavy metals.

What are the disadvantages of soy protein?

Some mild stomach and intestinal adverse effects of soy include constipation, gas, and nausea. Some people may get allergic reactions such as rash, itching, and respiratory difficulties as a result of it.

Is it safe to consume soya on a daily basis?

Yes, it is generally safe to consume soya on a daily basis. However, as with any other food product, you should consult your doctor or nutritionist and carefully read the labels of any soy products before consuming them in order to make sure that they are appropriate for you.

Additionally, some people may be allergic to soy proteins, so it's important to look out for potential allergens when making your purchase. Furthermore, if you suffer from kidney damage or have high cholesterol levels, be sure to check with your doctor before increasing your intake of soy protein.

How much soy milk can you drink in a day?

You can consume soy milk with confidence, adds Hever, who follows the American Institute for Cancer Research (AICR) guidelines for moderate soy consumption: one to two servings of whole soy foods per day, such as soy milk, soy nuts, edamame, and tofu.

Can soy protein be used to develop muscle?

Soy protein, unlike the majority of plant-based proteins, contains sufficient amounts of all essential amino acids to enable muscle protein synthesis. That means your body could use soy protein to develop muscle completely on its own. Of course, to build muscle optimally you should still consider pairing your soy protein with other sources of complete proteins such as fish, eggs, dairy, or meat.

Additionally, consuming soy protein in combination with resistance training can help improve muscle size and strength more effectively than resistance training alone.

Soy protein is used by bodybuilders?

Yes, soy protein is used by bodybuilders as it contains all the essential amino acids needed for muscle protein synthesis. Research has shown that consuming soy protein, in combination with resistance training, can help improve muscle size and strength more effectively than resistance training alone.

Additionally, it is low in fat and contains no cholesterol which makes it a good choice for athletes looking to supplement their diets without sacrificing their health. It's also vegan-friendly and gluten-free, making it suitable for those who have dietary restrictions or allergies. Therefore, bodybuilders use soy proteins as part of their routine to maximize results while maintaining a healthy lifestyle.

What effect does soy have on your hormones?

Soy is special in that it includes a large concentration of isoflavones, a form of plant estrogen (phytoestrogen) that functions similarly to human estrogen but with far fewer side effects. Soy isoflavones have the ability to bind to estrogen receptors in the body, resulting in either weak estrogenic or anti-estrogenic activity.

The weak estrogenic activity is believed to be beneficial in the prevention of breast cancer and other hormone-mediated diseases, while the anti-estrogenic effect helps reduce symptoms related to menopause such as hot flashes. Additionally, research has shown that soy may have a positive effect on preventing prostate cancer.

Why are people avoiding soy?

Soy, it was discovered, contains estrogen-like chemicals known as isoflavones. Furthermore, some research suggests that these substances may accelerate the growth of some cancer cells, decrease female fertility, and interfere with thyroid function.

What types of soy should you avoid?

If you are allergic to soy, consult your doctor to see if you should avoid soy oil or soy lecithin. Everyone who is allergic to soy should avoid cold-pressed, ejected, or extruded soy oils, also known as gourmet soy oils. These are not highly processed foods and may include trace amounts of soy protein.

What is the healthiest soy?

Unprocessed soy is the healthiest and most nutrient-dense form. Unprocessed soy includes all of the essential amino acids, as well as fiber, potassium, magnesium, B vitamins, calcium, and iron, as well as omega-3 and -6 fatty acids.

Does soy protein increase testosterone levels?

No. Soy consumption has no effect on a man's testosterone levels. Soy, which is derived from soybeans, is a high-protein component found in a variety of meals, including edamame, tofu, tempeh, miso, soy flour, and soy milk. It is also present in several supplements.


The humble soybean delivers a very high quality protein, and while anyone can buy tofu or tempeh at the grocery, many people find soy protein powder to be less expensive and more convenient.

Soy is a fantastically inexpensive, high-quality protein that can help anyone, vegan or omnivore, meet their protein requirements. Whatever your budget or preferences are, the proper soy protein is on this list.