These can include: Pain or discomfort at the site of injection Redness or swelling Itching or rash These reactions are usually mild and go away by themselves
Vitamin B12 is primarily found in animal-based foods, including beef, salmon, yogurt, and milk, though some plant-based foods, like nutritional yeast, are fortified with it
There are also cases where patients with low B12 levels have problems with fertility or are more likely to develop dementia
Demyelination of brain cells is commonly seen in dementia patients
M., White, E., & Chen, C.-L
Heart, Brain, and Blood Vessel Causes Explained Heart attack or angina Angina is chest discomfort from reduced blood flow to the heart