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Reference Guide
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SIgA
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SIgA
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Secretory IgA

What's 
SIgA
?
Secretory IgA (SIgA) is an antibody that plays a key role in the body's immune defense. Measuring SIgA can help identify potential health issues related to gut immunity, digestive health, and allergies.
If Your Levels Are High
Symptoms of High Levels
If Your Levels are Low
Symptoms of Low Levels

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Secretory IgA

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