It can also block it and make it hard for any other food to pass through
Presented for research literature review only Boroghin SC et al
Yao Y, Jeyanathan M, Haddadi S, Barra NG, Vaseghi-Shanjani M, Damjanovic D, Lai R, Afkhami S, Chen Y, Dvorkin-Gheva A, Robbins CS, Schertzer JD, Xing Z (2018) Induction of autonomous memory alveolar macrophages requires T cell help and is critical to trained immunity
But experts today labelled the product's claims merely 'clever marketing' that are based on 'no science' and cautioned they 'should not be sold as a weight loss intervention'
On the other hand, oral supplements must navigate through your digestive system, which can affect how much B12 your body absorbs