IngredientsProtein ingredient glossary.

Our ingredient glossary includes common protein powder ingredients, their purpose, and safety recommendations based on our research. Empowering you to make informed product choices is our goal. While we do provide a recommendation, you should always discuss using a new supplement with a healthcare professional.
SAFE
CAUTION
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Gluconic acid
Acidifier / Acidity regulator
Synonyms:  D-gluconic acid
Gluconic acid, produced by the fermentation of glucose, is added to some protein powders as a source of acidity and preservative.
Glucono delta-lactone
Acidifier / Acidity regulator
Glucono delta-lactone (GDL) is a natural acid commonly used in food products, including some protein powders, as a source of acidity to enhance taste.
Glucosamine sulfate, a naturally occurring amino sugar found in shellfish and fungi, is used in some protein powders for its potential health benefits. It can act as a natural anti-inflammatory to reduce joint pain and inflammation.
Guar gum
Thickener
Additive Number: 412
Guar gum, derived from the seeds of the guar plant, is a type of soluble fiber used in some protein powders as a thickening agent to improve texture and mixability.
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