Do not use heat for the first 24 to 48 hours Hot baths, saunas, and long hot showers dilate blood vessels and can worsen swelling and bruising early on
However, certain groups may be at greater risk for this problem, including: Vegetarians Vegans Older adults People with digestive problems Signs of a B12 deficiency include fatigue, anemia, muscle weakness, nerve problems, mood disturbance, and intestinal problems
Similarly, individuals with certain blood cancers may present with unexplained weight loss, night sweats, or lymphadenopathy
Just make sure to avoid caffeine for at least an hour after taking supplements as it can inhibit efficient absorption of the vitamin