Tests like GI-MAP or comprehensive stool panels can reveal useful information, but negative tests do not rule out significant clinical dysfunction
SYK deficiency in SCs impairs glycolysis, as evidenced by reduced glucose uptake, diminished expression of key transporters (GLUT1/4) and enzymes (HK2, PFKFB3, PFK-1, PKM2, LDHA), and consequent depletion of glycolytic intermediates and lactate
A standard capsule taken at the "perfect" time will still struggle to survive the digestive process
Deficiency in vitamin B12 may cause anemia, fatigue, muscle weakness, intestinal problems, nerve damage, and mood disturbances
tablets rely on gut function
However, while vitamin B12 is safe when used as recommended, there are several vitamin B12 injection side effects to consider as well