With B12 shots, your body will absorb the vitamin fast and start making new red blood cells within 48 to 72 hours
Individuals with Gastrointestinal Disorders: Such as Crohns disease, celiac disease, atrophic gastritis, or those who have had gastric bypass surgery or other stomach/intestinal resections, which can interfere with B12 absorption
Stomach acid tends to decrease with age, which makes it harder to extract B12 from food
KLOW adds KPV for inflammatory skin patterns
People with Certain Medications Long-term use of certain medications, like proton pump inhibitors, H2 receptor antagonists, or metformin, can interfere with B12 absorption