A complement C4 (also known as a complement component 4, or simply C4) is a test to measure the level of C4 proteins you have in your blood. These proteins play a role in how your immune system ...

Nuts and seeds are naturally rich in protein. You can enjoy them on their own, blended into nut butters, mixed into yogurt, oatmeal, or trail mix, or added to smoothies, salads, grain dishes, and ...

These findings suggest complement protein levels may be an important biomarker for type 1 diabetes. Disruption of the complement system appears to precede the onset of islet autoimmunity (IA), making ...