And if you're struggling with persistent headaches, too much vitamin B12 from injections might be a contributing factor
For instance, mutations and polymorphisms in transport proteins such as transcobalamin TCN, gastric intrinsic factor GIF and metabolic enzymes such as methylenetetrahydrofolate reductase MTHFR have been associated with vitamin B12 deficiency. 2 Vitamin B12 deficiency may also occur if you have certain conditions, such as: Pernicious anaemia, which makes it hard for your body to absorb vitamin B12 (characterized by a lack of intrinsic factor individuals cannot properly absorb vitamin B12 in the gastrointestinal tract) Atrophic gastritis or inadequate production of stomach acid (occurs in 10-30% of older adults!) Helicobacter pylori infection in the stomach Surgery that removes part of your stomach or small intestine which can result in a loss of cells that secrete hydrochloric acid and intrinsic factor Bariatric surgery Gastrointestinal tract or weight loss surgery Conditions that affect the small bowel Crohns disease Celiac disease (11-41% of patients with celiac will have B12 deficiency) Small intestinal bacterial overgrowth (SIBO) Parasite infections (Giardia and tapeworm) Chronic pancreatitis Heavy alcohol use or advanced liver disease Autoimmune conditions Graves disease Lupus Malnutrition or eating disorders Long term use of medications Proton pump inhibitors H2 blockers Metformin Certain antibiotics 3 How does your body absorb vitamin B12
Proper Storage: Once reconstituted, your Retatrutide must be stored in the refrigerator (around 2-8C or 36-46F)
Some examples include: Chloramphenicol: May interfere with the hematologic response to cyanocobalamin
Metallic taste can develop suddenly or over longer periods of time, and can cause major effects on the taste of foods, leading to changes in appetite and eating habits
If you have been vegan for several years without consistent B12 fortification, a GP blood test is the sensible starting point
