Faster Efficacy: Effects can be felt more quickly than oral supplements, which require digestion
Neither is "better" in a research sense, because the two are studied for different mechanistic questions
Common causes include: Chemotherapy and radiation therapy Prescription medications (including antibiotics, antihypertensives, antidepressants, and anticonvulsants, and more) Vitamin or mineral deficiencies (especially zinc, copper, and vitamin B12) Poor oral hygiene or untreated dental issues Upper respiratory or sinus infections Neurological disorders such as Parkinsons or Alzheimers disease Systemic conditions (such as diabetes, kidney disease, or liver disease) Among these, cancer treatment stands out as a major contributing factor
According to research published in the American Journal of Medicine, vitamin B12 deficiency becomes increasingly common in adults over 50 because of reduced absorption capacity
The data isn't bulletproof (preparation methods vary, study quality is uneven), but it's further along than BPC-157's primarily animal evidence base