Below are possible Vitamin B12 deficiency symptoms: Weakness, tiredness, or lightheadedness Heart palpitations and shortness of breath Pale skin A smooth tongue Constipation, diarrhea, loss of appetite, or gas Nerve problems like numbness or tingling, muscle weakness, and problems walking Vision loss Mental problems like depression, memory loss, or behavioral changes You can also get vitamin B12 deficiency if you follow a vegan diet or you are a vegetarian who doesn't eat enough eggs or dairy products to meet your vitamin B12 needs
The Dietary Guidelines for Americans suggest no more than one daily drink for women and two for men
Its especially beneficial for individuals with absorption issues, such as those with gastrointestinal disorders or after certain surgeries
Conversely, if a patient presents with pernicious anemia or severe neurological signssuch as intense tingling in the hands, memory loss, or muscle weaknessthe dosage remains the same (usually 1,000 mcg), but the frequency increases significantly