Benefits of Soy Protein Powder

Author: Nicole Adler   Date Posted: 31 August 2016 

With an incredible selection of protein powders on the market today, it can be hard to find the right supplement to complement your training. Even though whey protein is the best known protein supplement today, there are other options available if you are looking for something different. Soy protein is an alternative you could use, so let us take a closer look at soy protein powder and see what benefits you could obtain from it.

What Is Soy Protein?

Soy protein  is a specific protein derived from the soybean. To obtain it, manufacturers need to use soybean meal, which is dehulled and defatted. Based on that soybean meal, manufacturers can obtain three commercial products that are widely used around the world; this includes soy flour, soy concentrate and soy isolate.

The final protein used in supplements is considered to have 60% to 70% of the protein bodies of the source product – the soybean. Some researchers have claimed that soy protein has multiple benefits, which is why this end product is often used in health food products as well.

Can I Use a Combination of Whey Protein and Soy Protein Powder?

There are a considerable number of athletes who use a combination of whey protein and soy protein powder. Studies  have indicated that whey protein and soy protein powder actually complement each other when used in combination with a good training routine. Therefore, many trainers recommend not using one or the other, but the two types of protein powders combined!

The reason why whey protein and soy protein powder work so well together is because they each have benefits that complement each other. While whey protein contains a high amount of branched chain amino acids that are essential for the body’s energy supply, soy protein has high amounts of arginine and glutamine, two amino acids that also provide benefits for the human body.

How Is Soy Protein Powder Made?

Soybeans need to go through a number of processes before the supplement “soy protein powder” is obtained. First, the soybeans are cleaned, conditioned, cracked, dehulled and rolled. Then, the oil within the soybean is removed. Once the oil has been removed, manufacturers continue to dry the flakes and create the needed de-fatted soybean flakes that are needed for the supplement.

Defatted soybean flakes are the raw substances needed for three major soy products: soy protein concentrate, soy protein isolate and texture soy protein. Each of these products is then used in supplements or in specific types of food.

Are There Different Types of Soy Protein Powder?

Similar to whey protein, soy protein powder can come in various forms. The most common types of soy protein products available at the moment include soy protein concentrate, soy protein isolate and textured soy protein.

Soy protein concentrate contains all the nutrients left after the defatting process; this type of protein contains at least 65% of the protein and the majority of carbohydrates that can be found in the soybean. Therefore, this form of soy protein is a great option for those looking for more energetic workouts and those in dire need of extra nutrients for muscle repair.

When you need a source of pure protein, soy protein isolate may be a better option for you, considering that soy protein isolate is considered to be the purest form of soy protein available today. The supplement is obtained from the defatted beans, where most of all the other ingredients are removed. Soy protein isolate is usually the best option for athletes looking to lose some weight, considering the carbohydrates have been removed from the formula. Those who do not like the characteristic flavour of soybeans will prefer this option as well, since the removal of certain substances causes the typical soybean taste to be less prominent.

Textured soy protein seems to be the odd duck in the bunch, especially when you consider this protein is made from soy protein concentrate. That being said, textured soy protein is probably used more than soy protein concentrate or soy protein isolate, because this form of soy protein finds applications in imitation chicken, pork and steak.

Does Soy Protein Decrease Testosterone and Increase Estrogen?

Researchers in the past claimed that soy protein could actually decrease levels of testosterone and increase levels of estrogen, so not all athletes were that willing to try soy protein. However, more recent studies have actually proven this is not the case.

A study executed at the American College of Sports Medicine showed that post-workout consumption of isonitrogenous and isoenergetic soy increased muscle mass and fat-bone free mass. Studies also indicated that the use of the supplement did not influence testosterone and estrogen levels in a bad way; this was tested on 41 male athletes doing a weight-training program over the course of twelve months.

Does Nutrients Direct Offer a Soy Protein Supplement?

Athletes interested in a soy protein supplement can take advantage of our soy protein isolate, a supplement used for weight loss, increased sports performance, muscle building, health & wellbeing, endurance and women’s fitness. Considering its numerous applications, this supplement is quite popular with a variety of athletes.

Nutrients Direct Soy Protein Isolate is a supplement that is easily digested and rapidly absorbed by the body. It is also suitable for vegetarians and vegans, looking for a protein supplement that does not contain any animal products. 

Our Soy Protein Isolate comes with some additional health benefits as well, since the formula contains protective antioxidants. These antioxidants will fight free radicals in the body, subsequently making your body less susceptible to a common problem athletes face – oxidative stress. 

In order to get a soy supplement with an excellent flavour, Nutrients Direct did not use an artificial sweetener, but a natural sweetener called stevia. Thanks to the use of this natural sweetener, Nutrients Direct Soy Protein Isolate is extremely suitable for those sensitive to artificial sweeteners and their side-effects. Check out this soy protein option from our range today and judge for yourself!

Data based on vanilla flavour ND Naturals WPC Rice Protein Isolate Pea Protein Isolate Soy Protein Isolate ND Natural WPI
Protein per serve (g) 23 23.6 24.1 25.4 26.2
Take For
Type of protein/s Whey Vegetable Vegetable Vegetable Whey
Carbs per serve (g) 4.2 4.8 2.5 1.8 2.2
Fat total per serve (g) 1.3 0.6 2.0 0.4 0.6
Sugars per serve (g) 3.4 0.6 0.6 1.0 1.6
Serving Size (g) Stevia Stevia Stevia Stevia Stevia
Serves per kilo Choc, Vanilla Choc, Vanilla, Natural Choc, Vanilla, Natural Choc, Vanilla, Natural Choc, Vanilla
Additional Premium Ingredients 30 30 30 30 30
Notes 33 33 33 33 33
Flavours All natural flavours and sweetener Vegetarian, all natural flavours and sweetener Vegetarian, all natural flavours and sweetener Vegetarian, all natural flavours and sweetener All natural flavours and sweetener

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