Compared to standard oral supplements, this direct delivery route matters most for patients whose digestive systems struggle to absorb B12 efficiently
However, contact a healthcare provider immediately if you experience severe abdominal pain that does not resolve, persistent vomiting that prevents hydration, signs of allergic reaction (hives, difficulty breathing, swelling of face or throat), or vision changes
Doctors dont check B12 levels routinely, but they may do so if a patient reports symptoms such as weakness, fatigue, tingling in the extremities (neuropathy), or cognitive changes
The international journal of biochemistry & cell biology, 33(3), 205220
You will have to figure out what your body does best on, but in general, I recommend using 5,000mcg per day in sublingual form as long as you are not extremely sensitive to supplements and/or medications
Being overweight or obese can take a toll on both your physical and mental health