Vitamin B12 deficiency can lower your metabolism, store fat in your body, and burn fewer than normal calories
Persistent fatigue, brain fog, low mood, weight gain, tingling in the hands or feet, frequent illness, post-COVID fatigue, or feeling generally "off" despite eating well and sleeping enough, especially if you're vegetarian, vegan, over 50, on metformin or a long-term acid reflux medication, or have a history of low B12 or pernicious anemia
You had people suffering from anemia, and suddenly they were healed. Heber remembers being at a hospital in Bishop, California, when a wheelchair-bound man who had undergone gastric bypass surgery came in complaining of fatigue
Cyano B12 in particular should be avoided, especially in patients with pernicious anemia and/or with high homocysteine