Soy Protein Isolate
Soy Protein Isolate is a highly purified form of protein extracted from soybeans, containing at least 90% protein by weight. It is primarily used as a nutritional supplement to support adequate protein intake, particularly for individuals following vegetarian or vegan diets, those with increased protein requirements, or patients with malnutrition. This supplement provides essential amino acids and serves as an alternative protein source for people who cannot tolerate dairy-based proteins.
Soy Protein Isolate is a concentrated plant-based protein supplement used to support nutritional needs and adequate protein intake in various dietary and medical contexts.
Key facts at a glance
- RxNorm
- 196238
- Generic
- Soy Protein Isolate
- Class
- unclassified
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- oral
- Forms
- tablet, capsule
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Used for nutritional supplementation to address protein deficiency, support muscle maintenance, and provide an alternative protein source for vegetarians, vegans, or individuals with lactose intolerance. It may also be used as part of dietary management for malnutrition or in situations requiring increased protein intake such as recovery from illness or surgery.
Provides a concentrated source of complete plant-based protein containing all essential amino acids. The protein is isolated from soybeans through processing that removes most of the fat and carbohydrates, resulting in a high-protein supplement that can be incorporated into the diet to meet daily protein requirements.
Should be avoided by individuals with soy allergy. May interact with thyroid medications as soy can affect iodine absorption and thyroid hormone levels; consult a healthcare provider if taking thyroid drugs. Not intended as a sole source of nutrition and should be used as part of a balanced diet. Those with kidney disease should consult a physician before use due to increased protein load.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 31, 2026. · Read our editorial policy