Advantages of Whey Protein v/s Advantages of Soy Protein

Whey is the watery part of milk that remains while making curds. Whey can be made by using different kinds of milk like cow milk, buffalo milk and other types of milk. The protein made by whey, which is a by-product of milk is called whey protein. Soybean is a legume that is predominantly used in East Asia and soy protein is the protein isolated from soybean. Dehulled and defatted soybeans are processed to make soy protein. There are many benefits of whey proteins and soy proteins and the following are some of the differences between the two:

Whey Protein

  • Whey protein is sold as dietary supplements used by many people for a variety of health benefits. Whey protein is a composition of globular proteins. Whey protein has casein protein and protein from the milk of the cow or buffalo, depending on which milk is used.
  • Other nutrients included in whey protein are Vitamin A, C, B-Complex, and Vitamin K, calcium, iron, niacin, thiamine, folate, folic acid, riboflavin, thiamine, Amino acids. Antioxidants are also provided by whey proteins as dietary supplements.
  • There are many health benefits of whey protein. It helps with weight loss as it reduces appetite and so reduces the intake of food. This protein helps maintain the right body weight and fights obesity in human beings.
  • Whey protein is used by bodybuilders as it helps build muscles and reduces the percentage of body fat in the body. Whey protein is a great muscle builder and helps reduce fatigue and become more active. Whey protein also helps build endurance and immunity.
  • Whey protein is said to help fight many diseases like cancers and is as an alternative medicine. Many people believe it fights many diseases like high blood pressure, diabetes, and a whole host of different diseases.

Soy Protein

  • Soy protein is available in the form of soy flour, concentrates, and isolates. This is a great choice for vegetarians and especially vegans who do not even eat dairy but can have soy milk products. Vegans and vegetarians especially need protein supplements as many protein rich foods are often not part of their diets.
  • The nutrients in soy protein include proteins, calcium, copper, iron, fats, folate, riboflavin, thiamine and essential amino acids.
  • Soy proteins help in lowering LDL Cholesterol, fights heart disease, helps boost energy, prevents different types of cancer, helps lose weight, helps in cell growth and regeneration and also makes the bones strong and healthy.

Comparison between Whey Protein and Soy Protein

Both whey protein and soy protein are used as dietary supplements and there is a constant comparison between the two and fitness experts often want to know which protein is better, whey protein or soy protein. The following is a comparison of various factors between whey protein and soy protein:

Dairy & Vegan – Dietary Restrictions

Whey Protein is made of animal products from the milk of cows, buffaloes and other cattle as whey is a byproduct while making curds from milk. Soybean protein is more favorable for people who live a more vegan lifestyle and have a vegan diet. Soybean protein does not use any animal products. Soy protein is not just better for people who are vegan but it is the only option between the two for people who are lactose intolerance and cannot have dairy in their diet.

Taste & Texture

Whey protein is much creamier than soy protein. It has a subtle taste whereas soy protein has a much more pronounced nuttier taste to it. Soy protein is made of legumes and is grainier than whey protein.

Type of Proteins

Both soy protein and whey protein are “complete” proteins as they have the concentration of all the main amino acids required for the body. The concentration of different protein components is different in whey protein and soy protein. Whey protein has a high concentrate of leucine, methionine, and lysine where as soy protein has higher concentrates of arginine and phenylalanine.

Shelf Life of Proteins

There is no major problem for each of these dietary supplements when it comes to shelf life. These proteins are often taken in the form of dietary supplements and so they are processed and preservatives are added to it. Whey protein and soy protein should not be taken after the expiration date as some flavor can be lost after that.


When it comes to dietary supplements, it is more of a personal preference and choice of the people using these products. Whichever of the two between whey protein and soy protein suits the needs and also suits the body without causing any side effects are the right choice. Sometimes if there are side effects of one type of protein like gas or stomach issues, it is advisable to try the alternative. Different people react to different proteins in a different way.

Whey protein and soy protein are both good for health in moderation. Any excessive use of these types of proteins results in side effects and health problems. There are advantages of using both these types of dietary supplements as regular food at times does not provide the nutrients necessary to the body and supplements are needed to make up for the lack of nutrients in the body. These are fast absorbing proteins which benefit the body and in comparison with each other, both have very distinct advantages to the human body.

As mentioned above both whey protein and soy protein help the body get essential nutrients. These dietary supplements have become increasingly popular among all age groups as living a healthy life and getting all essential nutrients in a diet is very important to the people of the 21st century. Whey protein supplements and soy protein supplements are easily available in the supermarket as they are popular with customers all over the world. A lean and fit body that has a strong immunity can fight various diseases. The comparison between whey protein and soy protein shows that both are good for health and offer different nutrients to help people have a more balanced diet.