Quick Navigation

Soy Protein

Our evidence-based analysis on soy protein features 12 unique references to scientific papers.

Research analysis led by .
Reviewed by
Examine.com Team
Last Updated:

Easily stay on top of the latest nutrition research

Become an Examine Member to get access to the latest research. Get 150+ studies summarized for you across 25 different categories every month.

Members also have access to the Examine Study Database of 400+ supplements and their effects on 600+ health outcomes, as well as in-depth research analyses. Understand the whole body of nutrition and supplement evidence at a glance.

Get instant access — start your free 14-day trial

Already a Member? Click here to log in.


Human Effect Matrix

Unlocked for Examine Members

Easily stay on top of the latest nutrition research

Become an Examine Member to get access to the latest research. Get 150+ studies summarized for you across 25 different categories every month.

Members also have access to the Examine Study Database of 400+ supplements and their effects on 600+ health outcomes, as well as in-depth research analyses. Understand the whole body of nutrition and supplement evidence at a glance.

Get instant access — start your free 14-day trial

Already a Member? Click here to log in.


The Human Effect Matrix summarizes human studies to tell you what effects Soy Protein has on your body, how much evidence there is, and how strong these effects are.

Full details are available to Examine Members. Not a Member? Try Examine Membership completely free for two weeks.
Grade Level of Evidence
Robust research conducted with repeated double-blind clinical trials
Multiple studies where at least two are double-blind and placebo controlled
Single double-blind study or multiple cohort studies
Uncontrolled or observational studies only
Level of Evidence
? The amount of high quality evidence. The more evidence, the more we can trust the results.
Outcome Magnitude of effect
? The direction and size of the supplement's impact on each outcome. Some supplements can have an increasing effect, others have a decreasing effect, and others have no effect.
Consistency of research results
? Scientific research does not always agree. HIGH or VERY HIGH means that most of the scientific research agrees.
Notes
grade-b - - See study
grade-b - - See study
grade-b - - See study
grade-b - - See study
grade-d - - See study
grade-d - - See study

Stay on top of the latest research

To unlock the full archives of our Study Database and research analyses, become an Examine Member today.

Start your 14-day free trial

Frequently Asked Questions and Articles on Soy Protein

Whey vs soy protein: which is better when losing weight?
Whey protein stimulates muscle protein synthesis rates more than soy protein, but supplementing with ~25 grams per day of either has similar effects on body composition over two weeks of dieting.

Things to Note

Primary Function:

Also Known As

Soy Protein Isolate, Soy Protein Powder, Soya Protein, Soya Protein Isolate, Soya Protein Powder

Do Not Confuse With

Tofu, Textured soy protein, Tempeh, Non-supplement soy foods

Get our free 5-day course on the essentials of supplementation.

At Examine, our incentives line up with yours — getting unbiased information. That's why we don’t sell any advertising or supplements.

Join over 250,000 people who have learned about effective versus overrated supplements, tips for buying supplements, and how to combine supplements for safety and efficacy.

Click here to see all 12 references.