High Doses Taking very high doses of B12 (especially in supplement form) can sometimes upset the stomach, leading to bloating or gas
[DOI] [PMC free article] [PubMed] [Google Scholar] 80.Geesaman B.M., Whitehouse W.H., Viviano K.R
[8][9] Food sources of choline include peanuts, soybeans, wheat, chicken, fish, beef, cauliflower, eggs, and lettuce
Two studies, including a short term cost utility analysis of patients with unexplained fatigue in an Australian primary care setting, concluded that oral treatment was the most cost effective strategy.56 Conversely, one study found that parenteral administration was cheaper unless accounting for the long term savings from avoiding additional GP appointments and blood tests costs.7 However, none of the studies reflect current treatment costs, and if the models were updated, then parenteral treatment would be the more cost effective option
However, as explained earlier, B12 supports normal energy production at a cellular level but does not act as a stimulant or provide an immediate energy boost