Compare every Soy Protein product across UK retailers on Suppio, ranked by true value - price per serving, not pack size. Prices refreshed daily.
What it is
Soy protein is a protein supplement made from soybeans, which are a type of legume. It is a complete protein, meaning it contains all the essential amino acids (the building blocks of protein) that the human body cannot make on its own.
Why it's used
It is primarily used by people who want to increase their protein intake without eating animal products. It is often used to help build muscle or maintain lean body mass because it is easily digested and absorbed by the body.
How it compares to Plant Protein
While soy protein is a type of plant protein, it differs from many other plant sources like pea or rice protein in its nutritional profile.
Feature
Soy Protein
Other Plant Proteins
Amino Acid Profile
Complete (contains all essential building blocks)
Often incomplete (requires mixing sources)
Source
Specifically from soybeans
Can be from peas, rice, hemp, or seeds
Common Use
Muscle maintenance and meat alternatives
General vegan protein supplementation
How it's made
The process begins by removing the fat from soybeans to create defatted soy flakes. These flakes are then processed using heat and chemicals to separate the protein from the carbohydrates and fibre. Finally, the protein is dried into a powder and often refined into different forms, such as soy protein isolate, which is the purest version.
What it typically costs
This supplement is generally mid-range in price. This is because soybeans are grown in massive quantities globally, making the raw material affordable, but the industrial refining process required to isolate the protein adds to the final cost.
How Suppio ranks
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
How often are Soy Protein prices updated?
Prices across our retailer network are refreshed at least daily.