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Soy Protein Isolate

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Common questions

Is Soy Protein Isolate healthy?

Soy Protein Isolate scores 60/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. This product consists solely of non-GMO soy protein isolate, which is a highly processed form of soy protein.

How processed is Soy Protein Isolate?

Soy Protein Isolate is NOVA Group 3: Processed Foods.

Which ingredients drive Soy Protein Isolate's score?

In Scout's ingredient-by-ingredient analysis, Non Gmo Soy Protein Isolate is flagged as an ingredient of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Soy Protein Isolate

BulkSupplements
60 Fair

Analysis updated July 2026 · How Scout scores

View on Amazon

At a glance

Beneficial ingredients 0
Harmful ingredients 1
Category Protein Powders
Summary

This product consists solely of non-GMO soy protein isolate, which is a highly processed form of soy protein. While it provides a plant-based protein source, it has an inferior amino acid profile compared to animal-based proteins and may contain phytoestrogens that could affect hormone balance. The lack of artificial additives is a positive aspect, but the processing level and potential hormonal concerns impact its overall rating.

Key ingredients 1

Non Gmo Soy Protein Isolate
Bad

Soy protein isolate is classified as 'bad' due to its inferior amino acid profile compared to animal-based proteins. It is a highly processed form of soy protein, which may reduce its nutritional quality. Additionally, concerns about phytoestrogens in soy products can affect hormone balance.

Risks

Potential risks include hormonal imbalances due to phytoestrogens and reduced nutritional quality from processing.

Benefits

Soy protein isolate provides a plant-based protein source that is suitable for vegetarians and vegans.

Processing

Group 3 · Processed

Processed Foods

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