Few foods evoke greater emotion than soy. It elicits fears of decreased testosterone, less optimal s...read more
The overall rating for soy protein is 2.1 out of 3 meaning there is some evidence that this supplement does some (not all) of what it claims. Using this supplement may lead to some improvements.
Few foods evoke greater emotion than soy. It elicits fears of decreased testosterone, less optimal strength, and feminization of masculine features. There’s plenty of misinformation about soy. The truth is there are plenty of health and performance benefits to consuming soy protein with plenty of research to back it up. Read More
- Simple Report
- Detailed Report
- Overall Effectiveness Rating
- Research Rating
- Claim Ratings
- The Bottom Line
Overall Effectiveness Rating
The overall effectiveness rating for soy protein is 2.1 out of 3. This rating means the evidence is mixed on the supplement's ability to deliver positive results. While some of the research supports its use, other evidence does not. Using this supplement may lead to positive results. Note, this effectiveness rating is for soy protein as a whole; there are also individual ratings for the claims below.
Read more: What is the effectiveness rating?
Research Rating for Soy Protein
There are 10 studies in the database on soy protein; the research rating is 36. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this research rating is for soy protein as a whole; there are also individual ratings for the claims below.
Read more: What is the research rating?
The overall ratings above are an average of the individual claim ratings below. Individual claims may have higher or lower ratings compared to the supplement's overall rating. For example, some supplements may have excellent backing for one claim, but be completely useless for another. Click on a claim below for more information.
|Body Composition (weight, muscle, body fat) Claims||Effectiveness Rating||Research Rating|
|decrease body fat||increase muscle mass||increase weight loss|
|Protein Synthesis Claims||Effectiveness Rating||Research Rating|
|increase protein synthesis|
|Performance Claims||Effectiveness Rating||Research Rating|
|Cardiovascular Health Claims||Effectiveness Rating||Research Rating|
|lower LDL (bad) cholesterol levels||increase HDL (good) cholesterol levels||lower total cholesterol levels|
|Recovery Claims||Effectiveness Rating||Research Rating|
|reduce muscle damage||reduce muscle soreness|
The Supplement Database includes 5 studies on soy protein dosing. These studies indicate an effective dose ranges from 22.2 to 50 grams per day, the average dose being 37.4 grams per day. For a more detailed dosing analysis visit: Supplement Dosing for Soy Protein.