In one study performed in 2013 participants had to take 1000mg orally for 6 months to see a 30% increase in blood concentration
The risk of gout increases with age and is more common in men
Oral drops and sublingual formulations interact directly with the upper GI lining, which can cause more upper GI symptoms (nausea) but sometimes less lower GI disruption (constipation)
Helped give me the energy to push through my insanely busy lifestyle
It also has powerful enzymes, like phospholipase A2 (PLA2), hyaluronidase, acid phosphodiesterase, -D-glucosidase, and lysophospholipase are enzymes, and in addition to low-molecular-weight molecules naturally occurring amines (e.g., histamine and epinephrine) and micronutrients (Moreno and Giralt, 2015)
Oral B12 looks cheap, but if your body absorbs very little of each pill because of low stomach acid or a gut condition, much of that spending does not translate into results, and you keep buying bottle after bottle