Cognitive symptoms such as memory loss, confusion, or trouble concentrating are not uncommon, and in children or older adults, these changes may be especially noticeable
Impaired tissue repair: Slower regeneration in skin, muscles, and organs
The injection takes just a few seconds and at most youll experience a slight pinch and mild soreness afterward
[6] [3] [10] A mild deficiency may not cause any discernible symptoms, but moderate deficiency can cause various symptoms, such as feeling tired, lightheadedness, headaches, cold intolerance, pale skin, sore tongue, upset stomach, loss of appetite, hair and skin color changes, numbness or tingling (pins and needles) of the fingers and toes, and tinnitus, and vision, cognitive or psychological problems