Soy Protein

Does soy protein work?

What is soy protein?

The soy bean is separated into three categories: flour, concentrates, and isolates. Soy flour contains 50% protein, soy concentrate contains 70% protein, and soy isolates contain 90% protein. Soy concentrates and isolates are mainly used in supplement products. Soy concentrates retain some carbohydrates and fiber while soy isolates contain significantly less. Read More

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Soy Protein Claims

The supplement database currently has 10 claims for Soy Protein. The claims include: increase protein synthesis, increase strength, increase muscle mass, decrease testosterone, lower total cholesterol levels, reduce muscle damage, increase HDL (good) cholesterol levels, lower LDL (bad) cholesterol levels, increase weight loss, decrease body fat.

Overall Effectiveness Rating for Soy Protein

The overall effectiveness rating for soy protein is 2 out of 3. This rating means there is some evidence that using soy protein may lead to positive results. This rating also means that some evidence does not back up all claims. Below you can find individual ratings for specific claims.

Overall Confidence Rating for Soy Protein

There are 21 studies in the database on soy protein; the confidence rating is 42. 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 rating is for soy protein as a whole. There are also individual ratings for the claims below.

Individual Claims

The overall ratings above do no necessarily reflect each claim about soy protein. Individual claims can have higher or lower ratings. For example, some supplements may have a lot of backing for one claim, but be completely useless for another. Click on claims below for more information.

The effectiveness rating for soy protein's ability to decrease body fat is 1 out of 3. The confidence rating for this claim is 40. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to decrease body fat.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 40

The effectiveness rating for soy protein's ability to decrease testosterone is 1.8 out of 3. The confidence rating for this claim is 80. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to decrease testosterone.

Effectiveness Rating for this claim: 1.8 out of 3

Confidence Rating for this claim: 80

The effectiveness rating for soy protein's ability to increase HDL (good) cholesterol levels is 2 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to increase HDL (good) cholesterol levels.

Effectiveness Rating for this claim: 2 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for soy protein's ability to increase muscle mass is 2.3 out of 3. The confidence rating for this claim is 80. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to increase muscle mass.

Effectiveness Rating for this claim: 2.3 out of 3

Confidence Rating for this claim: 80

The effectiveness rating for soy protein's ability to increase protein synthesis is 3 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to increase protein synthesis.

Effectiveness Rating for this claim: 3 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for soy protein's ability to increase strength is 2.5 out of 3. The confidence rating for this claim is 80. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to increase strength.

Effectiveness Rating for this claim: 2.5 out of 3

Confidence Rating for this claim: 80

The effectiveness rating for soy protein's ability to increase weight loss is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to increase weight loss.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for soy protein's ability to lower LDL (bad) cholesterol levels is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to lower LDL (bad) cholesterol levels.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for soy protein's ability to lower total cholesterol levels is 2 out of 3. The confidence rating for this claim is 40. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to lower total cholesterol levels.

Effectiveness Rating for this claim: 2 out of 3

Confidence Rating for this claim: 40

The effectiveness rating for soy protein's ability to reduce muscle damage is 3 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about soy protein's ability to reduce muscle damage.

Effectiveness Rating for this claim: 3 out of 3

Confidence Rating for this claim: 20